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/**
* Copyright (c) 2011, University of Konstanz, Distributed Systems Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the University of Konstanz nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.treetank.axis;
import org.treetank.api.INodeReadTrx;
import org.treetank.data.IConstants;
import org.treetank.data.interfaces.ITreeStructData;
/**
* FollowingSiblingAxis
*
*
* Iterate over all following siblings of kind ELEMENT or TEXT starting at a given node. Self is not included.
*
*/
public class FollowingSiblingAxis extends AbsAxis {
private boolean mIsFirst;
/**
* Constructor initializing internal state.
*
* @param rtx
* Exclusive (immutable) trx to iterate with.
*/
public FollowingSiblingAxis(final INodeReadTrx rtx) {
super(rtx);
mIsFirst = true;
}
/**
* {@inheritDoc}
*/
@Override
public final void reset(final long mNodeKey) {
super.reset(mNodeKey);
mIsFirst = true;
}
/**
* {@inheritDoc}
*/
@Override
public final boolean hasNext() {
if (mIsFirst) {
mIsFirst = false;
// if the context node is an attribute or namespace node,
// the following-sibling axis is empty
if (getNode().getKind() == IConstants.ATTRIBUTE
// || getTransaction().isNamespaceKind()
) {
resetToStartKey();
return false;
}
}
resetToLastKey();
if (((ITreeStructData)getNode()).hasRightSibling()) {
moveTo(((ITreeStructData)getNode()).getRightSiblingKey());
return true;
}
resetToStartKey();
return false;
}
}