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/*
* Copyright 2011 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.RichIterable;
import com.gs.collections.api.block.procedure.Procedure;
import com.gs.collections.api.block.procedure.Procedure2;
import com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure;
import com.gs.collections.impl.lazy.iterator.ChunkIterator;
import com.gs.collections.impl.utility.internal.IterableIterate;
import net.jcip.annotations.Immutable;
/**
* A ChunkIterable is an iterable that partitions a source iterable into fixed size chunks as it iterates.
*/
@Immutable
public class ChunkIterable<T>
extends AbstractLazyIterable<RichIterable<T>>
{
private final Iterable<T> iterable;
private final int size;
public ChunkIterable(Iterable<T> iterable, int size)
{
if (size <= 0)
{
throw new IllegalArgumentException("Size for groups must be positive but was: " + size);
}
this.iterable = iterable;
this.size = size;
}
public Iterator<RichIterable<T>> iterator()
{
return new ChunkIterator<T>(this.iterable, this.size);
}
public void forEach(Procedure<? super RichIterable<T>> procedure)
{
IterableIterate.forEach(this, procedure);
}
public void forEachWithIndex(ObjectIntProcedure<? super RichIterable<T>> objectIntProcedure)
{
IterableIterate.forEachWithIndex(this, objectIntProcedure);
}
public <P> void forEachWith(Procedure2<? super RichIterable<T>, ? super P> procedure, P parameter)
{
IterableIterate.forEachWith(this, procedure, parameter);
}
}
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