/* | |
* 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. | |
*/ | |
package org.apache.uima.cas.impl; | |
import java.util.NoSuchElementException; | |
import org.apache.uima.cas.FeatureStructure; | |
class IntIterator4bag<T extends FeatureStructure> extends FSIntIteratorImplBase<T> { | |
private int itPos; | |
final private FSBagIndex<T> fsBagIndex; // just an optimization, is == to fsLeafIndexImpl from super class, allows dispatch w/o casting | |
IntIterator4bag(FSBagIndex<T> fsBagIndex, int[] detectIllegalIndexUpdates) { | |
super(fsBagIndex, detectIllegalIndexUpdates); | |
this.fsBagIndex = fsBagIndex; | |
moveToFirst(); | |
} | |
@Override | |
public boolean isValid() { | |
return fsBagIndex.isValid(this.itPos); | |
} | |
/** | |
* If empty, make position -1 (invalid) | |
*/ | |
@Override | |
public void moveToFirst() { | |
resetConcurrentModification(); | |
this.itPos = fsBagIndex.moveToFirst(); | |
} | |
/** | |
* If empty, make position -1 (invalid) | |
*/ | |
@Override | |
public void moveToLast() { | |
resetConcurrentModification(); | |
this.itPos = fsBagIndex.moveToLast(); | |
} | |
@Override | |
public void moveToNext() { | |
checkConcurrentModification(); | |
this.itPos = fsBagIndex.moveToNext(itPos); | |
} | |
@Override | |
public void moveToPrevious() { | |
checkConcurrentModification(); | |
this.itPos = fsBagIndex.moveToPrevious(itPos); | |
} | |
@Override | |
public int get() { | |
if (!isValid()) { | |
throw new NoSuchElementException(); | |
} | |
checkConcurrentModification(); | |
return fsBagIndex.get(itPos); | |
} | |
/** | |
* @see org.apache.uima.internal.util.IntPointerIterator#copy() | |
*/ | |
@Override | |
public Object copy() { | |
IntIterator4bag<T> copy = new IntIterator4bag<T>(this.fsBagIndex, this.detectIllegalIndexUpdates); | |
copy.itPos = this.itPos; | |
return copy; | |
} | |
/** | |
* @see org.apache.uima.internal.util.IntPointerIterator#moveTo(int) | |
*/ | |
@Override | |
public void moveTo(int i) { | |
resetConcurrentModification(); | |
this.itPos = fsBagIndex.findLeftmost(i); | |
} | |
@Override | |
public int ll_indexSize() { | |
return fsBagIndex.size(); | |
} | |
} | |