/*
*
* * Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
* *
* * 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.
* *
* * For more information: http://www.orientechnologies.com
*
*/
package com.orientechnologies.common.collection;
import java.util.Iterator;
import java.util.NoSuchElementException;
import com.orientechnologies.common.util.OResettable;
/**
* Allows to iterate over a single object
*
* @author Luca Garulli (l.garulli--at--orientechnologies.com)
*/
public class OIterableObject<T> implements Iterable<T>, OResettable, Iterator<T> {
private final T object;
private boolean alreadyRead = false;
public OIterableObject(T o) {
object = o;
}
/**
* Returns an iterator over a set of elements of type T.
*
* @return an Iterator.
*/
public Iterator<T> iterator() {
return this;
}
@Override
public void reset() {
alreadyRead = false;
}
@Override
public boolean hasNext() {
return !alreadyRead;
}
@Override
public T next() {
if (!alreadyRead) {
alreadyRead = true;
return object;
} else
throw new NoSuchElementException();
}
@Override
public void remove() {
throw new UnsupportedOperationException("remove");
}
}