Difference between revisions of "Index Module"
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| width='90' | '''Signatures''' | | width='90' | '''Signatures''' | ||
− | |{{ | + | |{{Code|<b>index:facets</b>($db as item()) as xs:string}}<br/>{{Code|<b>index:facets</b>($db as item(), $type as xs:string) as xs:string}} |
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|'''Summary''' | |'''Summary''' | ||
− | |Returns information about possible facets and facet values of the [[Database Module#Database Nodes|database node]] <code>$db</code> in document structure format.<br/>If {{ | + | |Returns information about possible facets and facet values of the [[Database Module#Database Nodes|database node]] <code>$db</code> in document structure format.<br/>If {{Code|$type}} is specified as {{Code|flat}}, the function returns this information in a flat summarized version. |
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|'''Examples''' | |'''Examples''' | ||
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− | * {{ | + | * {{Code|index:facets("DB")}} returns information about facets and facet values on the database {{Code|DB}} in document structure. |
− | * {{ | + | * {{Code|index:facets("DB", "flat")}} returns information about facets and facet values on the database {{Code|DB}} in a summarized flat structure. |
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| width='90' | '''Signatures''' | | width='90' | '''Signatures''' | ||
− | |{{ | + | |{{Code|<b>index:texts</b>($db as item()) as element(value)*}}<br/>{{Code|<b>index:texts</b>($db as item(), $prefix as xs:string) as element(value)*}} |
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|'''Summary''' | |'''Summary''' | ||
− | |Returns all strings stored in the text index of the [[Database Module#Database Nodes|database node]] <code>$db</code>, along with their number of occurrences.<br/>If {{ | + | |Returns all strings stored in the text index of the [[Database Module#Database Nodes|database node]] <code>$db</code>, along with their number of occurrences.<br/>If {{Code|$prefix}} is specified, the returned nodes will be refined to the strings starting with that prefix. |
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|'''Errors''' | |'''Errors''' | ||
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| width='90' | '''Signatures''' | | width='90' | '''Signatures''' | ||
− | |{{ | + | |{{Code|<b>index:attributes</b>($db as item()) as element(value)*}}<br/>{{Code|<b>index:attributes</b>($db as item(), $prefix as xs:string) as element(value)*}} |
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|'''Summary''' | |'''Summary''' | ||
− | |Returns all strings stored in the attribute index of the [[Database Module#Database Nodes|database node]] <code>$db</code>, along with their number of occurrences.<br/>If {{ | + | |Returns all strings stored in the attribute index of the [[Database Module#Database Nodes|database node]] <code>$db</code>, along with their number of occurrences.<br/>If {{Code|$prefix}} is specified, the returned nodes will be refined to the strings starting with that prefix. |
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|'''Errors''' | |'''Errors''' | ||
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| width='90' | '''Signatures''' | | width='90' | '''Signatures''' | ||
− | |{{ | + | |{{Code|<b>index:element-names</b>($db as item()) as element(value)*}} |
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|'''Summary''' | |'''Summary''' | ||
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| width='90' | '''Signatures''' | | width='90' | '''Signatures''' | ||
− | |{{ | + | |{{Code|<b>index:attribute-names</b>($db as item()) as element(value)*}} |
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|'''Summary''' | |'''Summary''' |
Revision as of 15:13, 26 May 2012
This XQuery Module provides functions for displaying information stored in the database index structures.
Contents
Conventions
All functions in this module are assigned to the http://basex.org/modules/index
namespace, which is statically bound to the index
prefix.
All errors are assigned to the http://basex.org/errors
namespace, which is statically bound to the bxerr
prefix.
Functions
index:facets
Signatures | index:facets($db as item()) as xs:string index:facets($db as item(), $type as xs:string) as xs:string
|
Summary | Returns information about possible facets and facet values of the database node $db in document structure format.If $type is specified as flat , the function returns this information in a flat summarized version.
|
Examples |
|
index:texts
Signatures | index:texts($db as item()) as element(value)* index:texts($db as item(), $prefix as xs:string) as element(value)*
|
Summary | Returns all strings stored in the text index of the database node $db , along with their number of occurrences.If $prefix is specified, the returned nodes will be refined to the strings starting with that prefix.
|
Errors | BXDB0004 is raised if the text index is not available. |
index:attributes
Signatures | index:attributes($db as item()) as element(value)* index:attributes($db as item(), $prefix as xs:string) as element(value)*
|
Summary | Returns all strings stored in the attribute index of the database node $db , along with their number of occurrences.If $prefix is specified, the returned nodes will be refined to the strings starting with that prefix.
|
Errors | BXDB0004 is raised if the attribute index is not available. |
index:element-names
Signatures | index:element-names($db as item()) as element(value)*
|
Summary | Returns all element names stored in the index of the database node $db , along with their number of occurrences.
|
index:attribute-names
Signatures | index:attribute-names($db as item()) as element(value)*
|
Summary | Returns all attribute names stored in the index of the database node $db , along with their number of occurrences.
|
Changelog
The module was introduced with Version 7.1.