Count (query directive)
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Count(Directive directive) | Count(Directive directive) | ||
| + | |||
| + | == Examples == | ||
| + | |||
| + | Following example counts all instances of the input directive. | ||
| + | |||
| + | importPackage(org.wandora.query2); | ||
| + | new Count(new Instances()) | ||
| + | |||
| + | Following example finds all topics in the topic map that have more than 5 instances. | ||
| + | |||
| + | importPackage(org.wandora.query2); | ||
| + | new Count(new Instances()) | ||
| + | .as("#count") | ||
| + | .from(new AllTopics().as("#topic")) | ||
| + | .where("#count",">","\"5\"",true) | ||
| + | |||
[[Category:Query directives]] | [[Category:Query directives]] | ||
Latest revision as of 12:04, 21 August 2009
[edit] Description
Counts the number of rows returned by the inner directive using same input the Count directive got.
[edit] Constructor
Count(Directive directive)
[edit] Examples
Following example counts all instances of the input directive.
importPackage(org.wandora.query2); new Count(new Instances())
Following example finds all topics in the topic map that have more than 5 instances.
importPackage(org.wandora.query2);
new Count(new Instances())
.as("#count")
.from(new AllTopics().as("#topic"))
.where("#count",">","\"5\"",true)
