com.metamx.common.guava.MergeIterable Maven / Gradle / Ivy
/*
* Copyright 2011,2012 Metamarkets Group Inc.
*
* 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.metamx.common.guava;
import com.google.common.collect.Lists;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
/**
*/
public class MergeIterable implements Iterable
{
private final Comparator comparator;
private final Iterable> baseIterables;
public MergeIterable(
Comparator comparator,
Iterable> baseIterables
)
{
this.comparator = comparator;
this.baseIterables = baseIterables;
}
@Override
public Iterator iterator()
{
List> iterators = Lists.newArrayList();
for (Iterable baseIterable : baseIterables) {
iterators.add(baseIterable.iterator());
}
return new MergeIterator<>(comparator, iterators);
}
}