/*
* 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.lucene.search.suggest.tst;
import org.apache.lucene.util.RamUsageEstimator;
/**
* The class creates a TST node.
*/
public class TernaryTreeNode {
/** Creates a new empty node */
public TernaryTreeNode() {}
/** the character stored by a node. */
char splitchar;
/** a reference object to the node containing character smaller than this node's character. */
TernaryTreeNode loKid;
/**
* a reference object to the node containing character next to this node's character as
* occurring in the inserted token.
*/
TernaryTreeNode eqKid;
/** a reference object to the node containing character higher than this node's character. */
TernaryTreeNode hiKid;
/**
* used by leaf nodes to store the complete tokens to be added to suggest list while
* auto-completing the prefix.
*/
String token;
Object val;
long sizeInBytes() {
long mem = RamUsageEstimator.shallowSizeOf(this);
if (loKid != null) {
mem += loKid.sizeInBytes();
}
if (eqKid != null) {
mem += eqKid.sizeInBytes();
}
if (hiKid != null) {
mem += hiKid.sizeInBytes();
}
if (token != null) {
mem += RamUsageEstimator.shallowSizeOf(token) + RamUsageEstimator.NUM_BYTES_ARRAY_HEADER + Character.BYTES * token.length();
}
mem += RamUsageEstimator.shallowSizeOf(val);
return mem;
}
}