jidt/java/source/infodynamics/utils/IntArrayWrapper.java

86 lines
2.1 KiB
Java
Executable File

/*
* Java Information Dynamics Toolkit (JIDT)
* Copyright (C) 2012, Joseph T. Lizier
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package infodynamics.utils;
import java.util.Arrays;
/**
* IntArrayWrapper is used to wrap a long array so as to be able to give it a hash value
* for placement into a hash table.
*
* @author Joseph Lizier (<a href="joseph.lizier at gmail.com">email</a>,
* <a href="http://lizier.me/joseph/">www</a>)
*/
public class IntArrayWrapper {
private int[] array;
private int firstCols = 0;
public IntArrayWrapper() {
super();
}
public IntArrayWrapper(int[] newArray) {
super();
setArray(newArray, newArray.length);
}
public IntArrayWrapper(int[] newArray, int firstcolumns) {
super();
setArray(newArray, firstcolumns);
}
public int hashCode() {
return Arrays.hashCode(array);
}
public int[] getArray() {
return array;
}
public void setArray(int[] newArray, int firstcolumns) {
array = newArray;
firstCols = firstcolumns;
}
public int getArrayUsedLength() {
return firstCols;
}
public boolean equals(Object o) {
if (o == this) {
return true;
}
IntArrayWrapper iaw2 = (IntArrayWrapper) o;
if (iaw2.getArrayUsedLength() != firstCols) {
return false;
}
// check deeply inside arrays
int[] inArray = iaw2.getArray();
for (int i = 0; i < firstCols; i++) {
if (array[i] != inArray[i]) {
return false;
}
}
return true;
}
}