1164 lines
17 KiB
Plaintext
1164 lines
17 KiB
Plaintext
head 1.45;
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access;
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symbols;
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locks; strict;
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comment @# @;
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1.45
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date 2007.01.09.00.00.00; author MoinMoin; state Exp;
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branches;
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date 2007.01.09.00.00.00; author MoinMoin; state Exp;
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1.9
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1.6
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1.4
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1.3
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date 2007.01.09.00.00.00; author MoinMoin; state Exp;
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1.2
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date 2007.01.09.00.00.00; author MoinMoin; state Exp;
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next 1.1;
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1.1
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date 2007.01.09.00.00.00; author MoinMoin; state Exp;
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branches;
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next ;
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desc
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@Initial revision
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@
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1.45
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log
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@Revision 45
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@
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text
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@All TAPIR operations can alternatively be invoked with a http GET URL. The operation name itself is specified in a parameter called "op". If not specified the default operation is metadata.
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---+++ Global parameters (valid for all operations)
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* op=[ping,metadata,capabilities,inventory,search]
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* default=metadata
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* cardinality=1..1
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* xslt=[URI]
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* default=null
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* cardinality=0..1
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* xslt-apply=[true,false,1,0]
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* default=false
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* cardinality=0..1
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* log-only=[true,false,1,0]
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* default=false
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* cardinality=0..1
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---+++ The accepted list of parameters for each operation
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---+++++ ping
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* op=[ping,p]
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---+++++ metadata
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* op=[metadata,m]
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---+++++ capabilities
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* op=[capabilities,c]
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---+++++ inventory
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* op=[inventory,i]
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* count=[true,false,1,0]
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* default=false
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* cardinality=0..1
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* start=[[integer][>= 1]]
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* default=1
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* cardinality=0..1
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* limit=[[integer][>=0, NONE]]
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* default=NONE
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* cardinality=0..1
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Then either a "template" parameter must be present:
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* template=[URI]
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* default=null
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* cardinality=0..1
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Or one or more concepts with an optional filter:
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* concept=[[fully][qualified or alias]]
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* default=(UNDEFINED which must be interpreted by implementation to mean no concepts and therefore empty response)
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* cardinality=0..n
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* filter=[expression]
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* default=null
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* cardinality=0..1
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Parameter "template" takes precedence over "concept". So if both are present, "concept" (and the optional "filter") should be ignored.
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---+++++ search
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* op=[search,s]
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* count=[true,false,1,0]
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* default=false
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* cardinality=0..1
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* start=[[integer][>= 1]]
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* default=1
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* cardinality=0..1
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* limit=[[integer][>=0, NONE]]
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* default=NONE
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* cardinality=0..1
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Then either a "template" parameter must be present:
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* template=[URI]
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* default=null
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* cardinality=0..1
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Or a "model" parameter with optional "partial", "filter" and "orderby":
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* model=[URI]
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* default=null
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* cardinality=0..1
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* partial=[XPath]
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* default=null
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* cardinality=0..n
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* filter=[expression]
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* default=null
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* cardinality=0..1
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* orderby=[[fully][qualified or alias]]
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* default=null
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* cardinality=0..n
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Parameter "template" takes precedence over "model". So if both are are present, "model" (and the optionals "partial", "filter" and "orderby") should be ignored.
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* envelope=[true,false,1,0]
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* default=true
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* cardinality=0..1
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---+++ Filter encoding
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Filter expressions in GET requests will be infix equivalents to their XML counterparts
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---++++ Order of Operations
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The precedence of operators follows these rules:
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<verbatim>
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E: AOP, COP, LOP
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AOP: Mul, Div, Add, Sub
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COP: Equals
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LOP: Not, And, Or
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</verbatim>
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Blocks can be formed by using simple parenthesis ( )
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---++++ BNF Grammar For GET Filter expressions
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WikiPedia:Backus-Naur_form
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<verbatim>
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<expression> ::= <logical_operator> |
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<comparative_operator>
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<comparative_operator> ::= <unary_comparison_expression> |
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<binary_comparison_expression> |
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<unbound_comparison_expression>
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<logical_operator> ::= <unary_logical_expression> | <binary_logical_expression>
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<literal> ::= '"' <string> '"'
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<concept> ::= <concept_alias> |
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<qualified_concept>
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<concept_alias> ::= <local_concept_alias> "@@" <namespace_alias>
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<local_concept_alias> ::= <string>
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<namespace_alias> ::= <string>
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<qualified_concept> ::= <string>
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<value> ::= <literal> |
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<concept> |
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<arithmetic_expression>
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<arithmetic_expression> ::= <value> <arithmetic_operator> <value>
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<unary_comparison_expression> ::= <unary_comparison_operator> <concept>
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<binary_comparison_expression> ::= <value> <binary_comparison_operator> <value>
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<unbound_comparison_expression> ::= <unbound_comparison_operator> <expression> {<expression>}
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<unary_logical_expression> ::= <unary_logical_operator> <expression>
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<binary_logical_expression> ::= <expression> <binary_logical_operator> <expression>
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<unary_comparison_operator> ::= "isNull"
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<binary_comparison_operator> ::= "Equals" |
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"Like" |
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"GreaterThan" |
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"LessThan" |
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"GreaterThanOrEquals" |
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"LessThanOrEquals"
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<unbound_comparison_operator> ::= "In"
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<unary_logical_operator> ::= "Not"
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<binary_logical_operator> ::= "And" |
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"Or"
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<arithmetic_operator> ::= <ADD> |
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<DIV> |
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<MUL> |
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<SUB>
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<ADD> ::= "+"
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<SUB> ::= "-"
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<MUL> ::= "*"
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<DIV> ::= "/"
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<string> ::= <any_char> { <any_char> }
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</verbatim>
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---+++++ Filter example
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<verbatim>
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isnull country@@dwc2 or FullScientificName@@abcd206 like "Abies*" and country@@dwc2 equals "Spain"
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would be more explicit:
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((isnull country@@dwc2) or((FullScientificName@@abcd206 like "Abies*") and(country@@dwc2 equals "Spain")))
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</verbatim>
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@
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1.44
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log
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@Revision 44
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@
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text
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@d125 1
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d127 65
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a191 42
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S := E
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"Start symbol"
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E := LOP | COP
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"Expression"
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COP := UCE | BCE | MCE
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"Comparative operator"
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LOP := ULE | BLE
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"Logical operator"
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L := "literal"
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"Literal"
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C := ALIAS | QCONCEPT
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"Concept"
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ALIAS := IdAlias@@NsAlias
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"Concept alias"
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QCONCEPT := String
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"Qualified concept"
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VAL := L | C | AE
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"Value"
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AE := VAL AOP VAL
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"Arithmetic expression"
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UCE := UCOP C
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"Unary comparison expression"
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BCE := VAL BCOP VAL
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"Binary comparison expression"
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MCE := MCOP E*
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"Multiple comparison expression"
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ULE := ULOP E
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"Unary logical expression"
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BLE := E BLOP E
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"Binary logical expression"
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UCOP := isNull
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"Unary comparison operators"
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BCOP := Equals | Like | GreaterThan | LessThan | GreaterThanOrEquals | LessThanOrEquals
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"Binary comparison operators"
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MCOP := In
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"Multiple comparison operators"
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ULOP := Not
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"Unary logical operators"
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BLOP := And | Or
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"Binary logical operators"
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AOP := ADD | DIV | MUL | SUB
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"Arithmetic operators"
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@
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1.43
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log
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@Revision 43
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@
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text
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@d140 1
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a140 1
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QCONCEPT := FullNamespace::ConceptId
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d151 1
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a151 1
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"Multiple comparison expression" example: IN ("1","2","3")
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@
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1.42
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log
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@Revision 42
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@
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text
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@a108 12
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---+++++ view
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* op=[view,v]
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* view=[URI]
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* default=null
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* cardinality=1..1
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* envelope=[true,false,1,0]
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* default=false
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* cardinality=0..1
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@
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1.41
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log
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@Revision 41
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@
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text
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@d46 1
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a46 1
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Then either a template parameter must be present:
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d62 1
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a62 1
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Parameter "template" takes precedence over "concept" and "filter". So if all of them are present, "concept" and "filter" should be ignored.
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d79 8
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d89 1
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a89 1
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* cardinality=1..1
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d103 2
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a108 1
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@
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1.40
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log
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@Revision 40
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@
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text
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@d46 8
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d56 1
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a56 1
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* cardinality=1..n
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d62 2
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@
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1.39
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log
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@Revision 39
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@
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text
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@a53 5
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* orderby=[[fully][qualified or alias]]
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* default=null
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* cardinality=0..n
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@
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1.38
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log
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@Revision 38
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@
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text
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@d1 1
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a1 3
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All TAPIR operations can alternatively be invoked with a http GET URL.
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The operation name itself is specified in a parameter called "op".
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If not specified the default operation is metadata.
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d16 4
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@
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1.37
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log
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@Revision 37
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@
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text
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@d134 1
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a134 1
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ALIAS := NsAlias@@IdAlias
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@
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1.36
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log
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@Revision 36
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@
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text
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@d7 1
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a7 1
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* default=capabilities
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a9 4
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* envelope=[true,false,1,0]
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* default=false
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* cardinality=0..1
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a25 1
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d74 1
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a74 1
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* cardinality=0..1
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d88 5
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d96 8
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@
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1.35
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log
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@Revision 35
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@
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text
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@d3 1
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a3 1
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If not specified the default operation is capabilities.
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@
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1.34
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log
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@Revision 34
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@
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text
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@d160 1
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a160 1
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isnull country@@dwc or FullScientificName@@abcd206 like "Abies*" and country@@dwc equals "Spain"
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d164 1
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a164 1
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((isnull country@@dwc) or((FullScientificName@@abcd206 like "Abies*") and(country@@dwc equals "Spain")))
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@
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1.33
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log
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@Revision 33
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@
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text
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@d3 1
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a3 1
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If not specified the default operation is capabilities/metadata (TBD).
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@
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1.32
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log
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@Revision 32
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@
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text
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@d160 1
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a160 1
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isnull*myConcept and*freak like "Carlos*" or*country equals "Spain"
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d164 1
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a164 1
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(((isnull*myConcept) and (*freak like "Carlos*")) or (*country equals "Spain"))
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@
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1.31
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@Revision 31
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@
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text
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@d124 1
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a124 1
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C := *concept
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d126 4
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@
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1.30
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@Revision 30
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@
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text
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@d93 1
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a93 1
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===== view=====
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@
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1.29
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log
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@Revision 29
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@
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text
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@d25 1
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a25 1
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* op=ping
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d28 1
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a28 1
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* op=metadata
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d32 1
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a32 1
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* op=capabilities
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d35 1
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a35 1
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* op=inventory
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d63 1
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a63 1
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* op=search
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d93 2
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@
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1.28
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log
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@Revision 28
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@
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text
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@d79 1
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a79 1
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* cardinality=0..1 GetInvokedOperations!\ When template and model are present model is ignored GetInvokedOperations!\
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@
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1.27
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log
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@Revision 27
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@
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text
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@d57 1
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a57 1
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* orderby=[XPath]
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d89 1
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a89 1
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* orderby=[XPath]
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@
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1.26
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log
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@Revision 26
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@
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text
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@d57 1
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a57 1
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* template=[URI] GetInvokedOperations!\ When a template is present concept&filter are ignored GetInvokedOperations!\
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d59 1
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a59 1
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* cardinality=0..1
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a80 4
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* template=[URI]
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* default=null
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* cardinality=0..1
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d89 4
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@
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1.25
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log
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@Revision 25
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@
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text
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@d49 1
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a49 1
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* concept=[[*however][we decide to represent them]]
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d53 9
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@
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1.24
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log
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@Revision 24
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@
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text
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@d2 1
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a2 1
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|
The operation name itself is specified in a parameter called "operation".
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@
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1.23
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log
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@Revision 23
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@
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text
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@d14 1
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a14 1
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* xsl=[URI]
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d18 1
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a18 1
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* xsl-apply=[true,false,1,0]
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@
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1.22
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log
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@Revision 22
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@
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text
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@d10 9
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a18 1
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* envelope=[true,false]
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d37 1
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a37 1
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* count=[true,false]
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d56 1
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a56 1
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* count=[true,false]
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@
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1.21
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log
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@Revision 21
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@
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text
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@d60 6
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a65 2
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|
* view=[[however][we decide to represent them]]
|
|
* default=???
|
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d68 3
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a70 1
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|
* partial=[]
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@
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1.20
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log
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@Revision 20
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@
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text
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@d132 1
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d134 1
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@
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1.19
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log
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@Revision 19
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@
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text
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@d95 1
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a95 1
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|
LOP := ULE | MLE
|
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d113 2
|
|
a114 2
|
|
MLE :=
|
|
"Multiple logical expression"
|
|
d123 2
|
|
a124 2
|
|
MLOP := And | Or
|
|
"Multiple logical operators"
|
|
@
|
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1.18
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log
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|
@Revision 18
|
|
@
|
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text
|
|
@d77 1
|
|
d85 2
|
|
d109 2
|
|
a110 2
|
|
MCE :=
|
|
"Multiple comparison expression"
|
|
d132 2
|
|
@
|
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|
1.17
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log
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|
@Revision 17
|
|
@
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text
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|
@d125 5
|
|
@
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1.16
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log
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|
@Revision 16
|
|
@
|
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text
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|
@d87 1
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|
d89 1
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d91 1
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d93 1
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d95 1
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d97 1
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d99 1
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d101 1
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d103 1
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d105 1
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d107 1
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d109 1
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d111 1
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d113 1
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d115 1
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d117 1
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d119 1
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d121 1
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d123 1
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@
|
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1.15
|
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log
|
|
@Revision 15
|
|
@
|
|
text
|
|
@d86 7
|
|
a92 7
|
|
S := E
|
|
E := LOP | COP
|
|
COP := UCE | BCE | MCE
|
|
LOP := ULE | MLE
|
|
L := "literal"
|
|
C := *concept
|
|
VAL := L | C | AE
|
|
@
|
|
|
|
|
|
1.14
|
|
log
|
|
@Revision 14
|
|
@
|
|
text
|
|
@d77 1
|
|
a77 1
|
|
|
|
d82 1
|
|
a82 1
|
|
|
|
d85 1
|
|
a85 1
|
|
|
|
d105 1
|
|
@
|
|
|
|
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|
1.13
|
|
log
|
|
@Revision 13
|
|
@
|
|
text
|
|
@d74 31
|
|
a104 1
|
|
Filter expressions in GET requests will be infix equivalents to their XML counterparts Where grouping cannot be implied by normal order of operations
|
|
@
|
|
|
|
|
|
1.12
|
|
log
|
|
@Revision 12
|
|
@
|
|
text
|
|
@d41 1
|
|
a41 1
|
|
* concept=[[however][we decide to represent them]]
|
|
d65 10
|
|
@
|
|
|
|
|
|
1.11
|
|
log
|
|
@Revision 11
|
|
@
|
|
text
|
|
@d1 1
|
|
a1 1
|
|
All (?) TAPIR operations can alternatively be invoked with a http GET URL.
|
|
@
|
|
|
|
|
|
1.10
|
|
log
|
|
@Revision 10
|
|
@
|
|
text
|
|
@d61 4
|
|
a64 2
|
|
* default=(UNDEFINED which must be interpreted by implementation to mean no concepts and therefore empty response)
|
|
* cardinality=1..n
|
|
@
|
|
|
|
|
|
1.9
|
|
log
|
|
@Revision 9
|
|
@
|
|
text
|
|
@d6 1
|
|
a6 1
|
|
* op=[ping,metadata,capabilities,inventory,earch]
|
|
d47 16
|
|
a62 4
|
|
* view: The URI of a view or the alias specified by the local provider (not globally unique)
|
|
* start:
|
|
* limit:
|
|
*
|
|
@
|
|
|
|
|
|
1.8
|
|
log
|
|
@Revision 8
|
|
@
|
|
text
|
|
@d5 1
|
|
a5 1
|
|
=== Global parameters (valid for all operations)
|
|
@
|
|
|
|
|
|
1.7
|
|
log
|
|
@Revision 7
|
|
@
|
|
text
|
|
@d5 9
|
|
d17 1
|
|
a17 1
|
|
* operation=ping
|
|
d20 2
|
|
a21 1
|
|
* operation=metadata
|
|
d24 1
|
|
a24 1
|
|
* operation=capabilities
|
|
d27 1
|
|
a27 1
|
|
* operation=inventory
|
|
d46 1
|
|
a46 1
|
|
* operation=search
|
|
@
|
|
|
|
|
|
1.6
|
|
log
|
|
@Revision 6
|
|
@
|
|
text
|
|
@d21 1
|
|
a21 1
|
|
* cardinality=1
|
|
d23 3
|
|
a25 3
|
|
* start=[[integer][>= 0]]
|
|
* default=0
|
|
* cardinality=1
|
|
d27 3
|
|
a29 3
|
|
* limit=[[integer][>=0]]
|
|
* default=1
|
|
* cardinality=1
|
|
d31 3
|
|
a33 3
|
|
* concept=[[any][string (if URL, must be URL encoded)]]
|
|
* default=null
|
|
* cardinality=n
|
|
@
|
|
|
|
|
|
1.5
|
|
log
|
|
@Revision 5
|
|
@
|
|
text
|
|
@d24 1
|
|
a24 1
|
|
* default=1
|
|
@
|
|
|
|
|
|
1.4
|
|
log
|
|
@Revision 4
|
|
@
|
|
text
|
|
@d23 1
|
|
a23 1
|
|
* start=[[integer][> 1]]
|
|
@
|
|
|
|
|
|
1.3
|
|
log
|
|
@Revision 3
|
|
@
|
|
text
|
|
@d20 3
|
|
a22 2
|
|
default=false
|
|
cardinality=1
|
|
d24 3
|
|
a26 2
|
|
default=1
|
|
cardinality=1
|
|
d28 3
|
|
a30 2
|
|
default=1
|
|
cardinality=1
|
|
d32 2
|
|
a33 2
|
|
default=null
|
|
cardinality=n
|
|
@
|
|
|
|
|
|
1.2
|
|
log
|
|
@Revision 2
|
|
@
|
|
text
|
|
@d19 13
|
|
a37 1
|
|
|
|
@
|
|
|
|
|
|
1.1
|
|
log
|
|
@Initial revision
|
|
@
|
|
text
|
|
@d5 3
|
|
a7 2
|
|
The accepted list of parameters for each operation:
|
|
---+++ ping
|
|
d10 1
|
|
a10 1
|
|
---+++ metadata
|
|
d13 1
|
|
a13 1
|
|
---+++ capabilities
|
|
d16 1
|
|
a16 1
|
|
---+++ inventory
|
|
d19 1
|
|
a19 1
|
|
---+++ search
|
|
a25 2
|
|
|
|
|
|
@
|