/*
* ARX: Powerful Data Anonymization
* Copyright 2012 - 2017 Fabian Prasser, Florian Kohlmayer and contributors
*
* Licensed 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.deidentifier.arx.common;
import java.util.Arrays;
import org.deidentifier.arx.DataHandle;
import org.deidentifier.arx.DataHandleInternal;
/**
* For hash tables
*
* @author Fabian Prasser
*/
public class TupleWrapper {
/** Hash code */
private final int hashcode;
/** Indices */
private final String[] values;
/** Suppressed */
private final boolean suppressed;
/**
* Constructor
*
* @param handle
* @param row
*/
public TupleWrapper(DataHandle handle, int[] indices, int row) {
this.values = new String[indices.length];
int hashcode = 1;
int idx = 0;
for (int index : indices) {
String value = handle.getValue(row, index);
hashcode = 31 * hashcode + value.hashCode();
values[idx++] = value;
}
this.hashcode = hashcode;
this.suppressed = handle.isOutlier(row);
}
/**
* Constructor
*
* @param handle
* @param row
*/
public TupleWrapper(DataHandleInternal handle, int[] indices, int row, boolean ignoreSuppression) {
this.values = new String[indices.length];
int hashcode = 1;
int idx = 0;
for (int index : indices) {
String value = handle.getValue(row, index, ignoreSuppression);
hashcode = 31 * hashcode + value.hashCode();
values[idx++] = value;
}
this.hashcode = hashcode;
this.suppressed = handle.isOutlier(row);
}
@Override
public boolean equals(Object other) {
return Arrays.equals(((TupleWrapper) other).values, this.values);
}
/**
* Returns the associated entry
* @return
*/
public String[] getValues() {
return values;
}
@Override
public int hashCode() {
return hashcode;
}
/**
* Is this tuple suppressed
* @return
*/
public boolean isOutlier() {
return suppressed;
}
}