WALA/com.ibm.wala.util/src/com/ibm/wala/util/graph/BasicTree.java

59 lines
1.5 KiB
Java

/*******************************************************************************
* Copyright (c) 2007 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package com.ibm.wala.util.graph;
import com.ibm.wala.util.collections.SimpleVector;
/**
* A simple, extremely inefficient tree implementation
*/
public class BasicTree<T> {
private final T value;
final private SimpleVector<BasicTree<T>> children = new SimpleVector<>();
protected BasicTree(T value) {
this.value = value;
}
public static <T> BasicTree<T> make(T value) {
if (value == null) {
throw new IllegalArgumentException("null value");
}
return new BasicTree<>(value);
}
public T getRootValue() {
return value;
}
public T getChildValue(int i) {
if (children.get(i) == null) {
return null;
} else {
return children.get(i).getRootValue();
}
}
public BasicTree<T> getChild(int i) {
return children.get(i);
}
public void setChild(int i, BasicTree<T> tree) {
children.set(i, tree);
}
public int getMaxChildIndex() {
return children.getMaxIndex();
}
}