com.getperka.flatpack.visitors.IterableContext Maven / Gradle / Ivy
package com.getperka.flatpack.visitors;
/*
* #%L
* FlatPack serialization code
* %%
* Copyright (C) 2012 - 2013 Perka 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.
* #L%
*/
import java.util.Iterator;
import com.getperka.flatpack.FlatPackVisitor;
import com.getperka.flatpack.ext.Acceptor;
import com.getperka.flatpack.ext.VisitorContext;
/**
* Allows an {@link Iterable} to be traversed via its {@link Iterator}.
*
* @param the iterator's element type
*/
public class IterableContext extends VisitorContext implements
Acceptor> {
private Iterator iterator;
protected IterableContext() {}
@Override
public Iterable accept(FlatPackVisitor visitor, Iterable iterable)
{
iterator = iterable.iterator();
while (iterator.hasNext()) {
getWalker().walk(visitor, iterator.next(), this);
}
return iterable;
}
@Override
public boolean canRemove() {
return true;
}
@Override
public void remove() {
ensure(canRemove());
markRemoved();
iterator.remove();
}
}