org.apache.cayenne.query.QualifiedQuery Maven / Gradle / Ivy
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package org.apache.cayenne.query;
import org.apache.cayenne.exp.Expression;
/**
* An abstract superclass of queries with Expression qualifiers.
*
*/
public abstract class QualifiedQuery extends AbstractQuery {
protected Expression qualifier;
/**
* Sets new query qualifier.
*/
public void setQualifier(Expression qualifier) {
this.qualifier = qualifier;
}
/**
* Returns query qualifier.
*/
public Expression getQualifier() {
return qualifier;
}
/**
* Adds specified qualifier to the existing qualifier joining it using "AND".
*/
public void andQualifier(Expression e) {
qualifier = (qualifier != null) ? qualifier.andExp(e) : e;
}
/**
* Adds specified qualifier to the existing qualifier joining it using "OR".
*/
public void orQualifier(Expression e) {
qualifier = (qualifier != null) ? qualifier.orExp(e) : e;
}
}