/**
* Copyright (c) 2013, Institute of Information Systems (Sven Groppe and contributors of LUPOSDATE), University of Luebeck
*
* 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 Luebeck 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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 lupos.datastructures.sort.run.trie;
import java.util.Iterator;
import lupos.datastructures.patriciatrie.TrieBag;
import lupos.datastructures.patriciatrie.diskseq.DBSeqTrieBag;
import lupos.datastructures.patriciatrie.exception.TrieNotCopyableException;
import lupos.datastructures.sort.run.Run;
public class TrieBagRun extends Run {
private final TrieBag trie;
public TrieBagRun(final TrieBag trie){
this.trie = trie;
}
@Override
public boolean add(String toBeAdded) {
return this.trie.add(toBeAdded);
}
@Override
public Run swapRun() {
TrieBag diskbasedTrie = new DBSeqTrieBag(Run.getFilenameForNewRun());
try {
diskbasedTrie.copy(this.trie);
} catch (TrieNotCopyableException e) {
System.err.println(e);
e.printStackTrace();
}
return new TrieBagRun(diskbasedTrie);
}
@Override
public boolean isEmpty() {
return this.trie.size()==0;
}
@Override
public Run sort() {
return this;
}
public TrieBag getTrie(){
return this.trie;
}
@Override
public Iterator<String> iterator() {
return this.trie.keyIterator();
}
@Override
public int size() {
return this.trie.size();
}
@Override
public void release() {
this.trie.release();
}
}