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/**
* @copyright
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
* ====================================================================
* @endcopyright
*
* @file Iterator.cpp
* @brief Interface of the class Iterator
*/
#ifndef JAVAHL_ITERATOR_H
#define JAVAHL_ITERATOR_H
#include "JNIUtil.h"
/**
* Encapsulates an immutable java.lang.Iterator implementation.
*/
class Iterator
{
public:
Iterator(jobject jiterable);
~Iterator();
bool hasNext() const;
jobject next() const;
protected:
Iterator(jobject jiterable, bool);
private:
bool m_persistent;
jobject m_jiterator;
};
/**
* Like Iterator, but the implementation will hold a global reference
* to the internal iterator object to protect it across JNI calls.
*/
class PersistentIterator : protected Iterator
{
public:
PersistentIterator(jobject jiterable) : Iterator(jiterable, true) {}
bool hasNext() const { return Iterator::hasNext(); }
jobject next() const { return Iterator::next(); }
};
#endif // JAVAHL_ITERATOR_H
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