org.apache.jackrabbit.oak.query.ast.Operator Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jackrabbit.oak.query.ast;
import org.apache.jackrabbit.oak.api.PropertyValue;
import org.apache.jackrabbit.oak.api.Type;
import org.apache.jackrabbit.oak.spi.query.fulltext.LikePattern;
import org.apache.jackrabbit.oak.plugins.memory.PropertyValues;
/**
* The enumeration of all operators.
*/
public enum Operator {
EQUAL("=") {
@Override
public boolean evaluate(PropertyValue p1, PropertyValue p2) {
return PropertyValues.match(p1, p2);
}
},
NOT_EQUAL("<>") {
@Override
public boolean evaluate(PropertyValue p1, PropertyValue p2) {
return PropertyValues.notMatch(p1, p2);
}
},
GREATER_THAN(">") {
@Override
public boolean evaluate(PropertyValue p1, PropertyValue p2) {
return p1.compareTo(p2) > 0;
}
},
GREATER_OR_EQUAL(">=") {
@Override
public boolean evaluate(PropertyValue p1, PropertyValue p2) {
return p1.compareTo(p2) >= 0;
}
},
LESS_THAN("<") {
@Override
public boolean evaluate(PropertyValue p1, PropertyValue p2) {
return p1.compareTo(p2) < 0;
}
},
LESS_OR_EQUAL("<=") {
@Override
public boolean evaluate(PropertyValue p1, PropertyValue p2) {
return p1.compareTo(p2) <= 0;
}
},
LIKE("like") {
@Override
public boolean evaluate(PropertyValue p1, PropertyValue p2) {
LikePattern like = new LikePattern(p2.getValue(Type.STRING));
for (String s : p1.getValue(Type.STRINGS)) {
if (like.matches(s)) {
return true;
}
}
return false;
}
};
/**
* The name of this operator.
*/
private final String name;
Operator(String name) {
this.name = name;
}
/**
* "operand2 always evaluates to a scalar value"
*
* for multi-valued properties: if any of the value matches, then return true
*/
public abstract boolean evaluate(PropertyValue p1, PropertyValue p2);
/**
* Returns the name of this query operator.
*/
@Override
public String toString() {
return name;
}
}