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36 lines (31 loc) · 1.11 KB
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/*
* Copyright 2011-2016 David Karnok
*
* 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 ix;
import java.util.Iterator;
/**
* A base iterator that references an upstream iterator and manages
* the state between hasNext() and the next() calls; plus defines
* the remove() to throw UnsupportedOperationException.
* @param <T> the source value type
* @param <R> the result value type
*/
public abstract class IxSourceIterator<T, R> extends IxBaseIterator<R> {
/** The upstream's iterator. */
protected final Iterator<T> it;
public IxSourceIterator(Iterator<T> it) {
this.it = it;
}
}