BaseName (query directive)
From WandoraWiki
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== Description == | == Description == | ||
| − | Gets the base name of the active column value of input. | + | Gets the base name of the active column value of input. Returns null if the input doesn't have a base name. |
== Constructor == | == Constructor == | ||
| Line 8: | Line 8: | ||
[[Category:Query directives]] | [[Category:Query directives]] | ||
| + | |||
| + | == Examples == | ||
| + | |||
| + | Following example gets the base names of the instances of the input topic. | ||
| + | |||
| + | importPackage(org.wandora.query2); | ||
| + | new BaseName().from(new Instances()) | ||
| + | |||
| + | Following example gets the base name of content type topic. | ||
| + | |||
| + | importPackage(org.wandora.query2); | ||
| + | new BaseName().from("http://www.wandora.org/core/contenttype") | ||
| + | |||
| + | Following example finds all topics in the topic map which do not have a base name. | ||
| + | |||
| + | importPackage(org.wandora.query2); | ||
| + | new BaseName().from(new AllTopics().as("#topic")) | ||
| + | .where("#DEFAULT","=",null) | ||
| + | |||
| + | Following example gets the base name of the input topic or the first subject identifier if it doesn't have a base name. | ||
| + | |||
| + | importPackage(org.wandora.query2); | ||
| + | new If( | ||
| + | new BaseName().where("#DEFAULT","!=",null), | ||
| + | new BaseName(), | ||
| + | new First(new SubjectIdentifiers()) | ||
| + | ) | ||
Latest revision as of 14:10, 21 August 2009
[edit] Description
Gets the base name of the active column value of input. Returns null if the input doesn't have a base name.
[edit] Constructor
BaseName()
[edit] Examples
Following example gets the base names of the instances of the input topic.
importPackage(org.wandora.query2); new BaseName().from(new Instances())
Following example gets the base name of content type topic.
importPackage(org.wandora.query2);
new BaseName().from("http://www.wandora.org/core/contenttype")
Following example finds all topics in the topic map which do not have a base name.
importPackage(org.wandora.query2);
new BaseName().from(new AllTopics().as("#topic"))
.where("#DEFAULT","=",null)
Following example gets the base name of the input topic or the first subject identifier if it doesn't have a base name.
importPackage(org.wandora.query2);
new If(
new BaseName().where("#DEFAULT","!=",null),
new BaseName(),
new First(new SubjectIdentifiers())
)
