/*
* Copyright 2015 Goldman Sachs.
*
* 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.gs.collections.impl.lazy;
import java.util.Iterator;
import com.gs.collections.api.LazyIterable;
import com.gs.collections.api.block.procedure.Procedure;
import com.gs.collections.impl.lazy.iterator.DistinctIterator;
import com.gs.collections.impl.utility.internal.IterableIterate;
import net.jcip.annotations.Immutable;
/**
* A DistinctIterable is an iterable that eliminates duplicates from a source iterable as it iterates.
*
* @since 5.0
*/
@Immutable
public class DistinctIterable<T>
extends AbstractLazyIterable<T>
{
private final Iterable<T> adapted;
public DistinctIterable(Iterable<T> newAdapted)
{
this.adapted = newAdapted;
}
@Override
public LazyIterable<T> distinct()
{
return this;
}
public void each(Procedure<? super T> procedure)
{
IterableIterate.forEach(this, procedure);
}
public Iterator<T> iterator()
{
return new DistinctIterator<T>(this.adapted);
}
}