com.day.cq.search.eval.SimilarityPredicateEvaluator Maven / Gradle / Ivy
/*
* Copyright 1997-2008 Day Management AG
* Barfuesserplatz 6, 4001 Basel, Switzerland
* All Rights Reserved.
*
* This software is the confidential and proprietary information of
* Day Management AG, ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Day.
*/
package com.day.cq.search.eval;
import com.day.cq.search.Predicate;
import org.apache.felix.scr.annotations.Component;
/**
* Similarity search using JCR XPath's rep:similar().
*
*
* Does not support filtering.
* Does not support facet extraction.
*
*
Name:
* similar
*
* Properties:
*
* - similar
- absolute path to the node for which to find similar nodes
* - local
- a relative path to a descendant node or . for the current node (optional, default is ".")
*
*
* @since 5.2
*/
@Component(metatype = false, factory = "com.day.cq.search.eval.PredicateEvaluator/similar")
public class SimilarityPredicateEvaluator extends AbstractPredicateEvaluator {
public static final String SIMILAR = "similar";
public static final String LOCAL = "local";
@Override
public String getXPathExpression(Predicate p, EvaluationContext context) {
if (!p.hasNonEmptyValue(SIMILAR)) {
return null;
}
return "rep:similar(" + p.get(LOCAL, ".") + ", '" + p.get(SIMILAR) + "')";
}
@Override
public boolean canXpath(Predicate p, EvaluationContext context) {
return true;
}
@Override
public boolean canFilter(Predicate p, EvaluationContext context) {
return false;
}
}