com.mysema.query.group.GSet 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 java.util.LinkedHashSet;
import java.util.Set;
import com.mysema.query.types.Expression;
/**
* @author tiwe
*
* @param
*/
class GSet extends AbstractGroupExpression> {
private static final long serialVersionUID = -1575808026237160843L;
public GSet(Expression expr) {
super(Set.class, expr);
}
@Override
public GroupCollector> createGroupCollector() {
return new GroupCollector>() {
private final Set set = new LinkedHashSet();
@Override
public void add(T o) {
if (o != null) {
set.add(o);
}
}
@Override
public Set get() {
return set;
}
};
}
}