com.mysema.query.group.QPair Maven / Gradle / Ivy
/*
* Copyright 2011, Mysema Ltd
*
* Licensed 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 com.mysema.query.group;
import com.mysema.commons.lang.Pair;
import com.mysema.query.types.ConstructorExpression;
import com.mysema.query.types.Expression;
/**
* A pair of (Map) key and value
*
* @author sasa
* @param Map key type
* @param Map value type
*/
public final class QPair extends ConstructorExpression> {
private static final long serialVersionUID = -1943990903548916056L;
public static QPair create(Expression key, Expression value) {
return new QPair(key, value);
}
@SuppressWarnings({"unchecked" })
public QPair(Expression key, Expression value) {
super((Class) Pair.class, new Class[]{Object.class, Object.class}, key, value);
}
public boolean equals(Expression keyExpr, Expression valueExpr) {
return getArgs().get(0).equals(keyExpr) && getArgs().get(1).equals(valueExpr);
}
public boolean equals(Expression keyExpr, Class valueType) {
return getArgs().get(0).equals(keyExpr) && valueType.isAssignableFrom(getArgs().get(1).getType());
}
}