com.cloudera.crunch.TupleN.java Source code

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Here is the source code for com.cloudera.crunch.TupleN.java

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/**
 * Copyright (c) 2011, Cloudera, Inc. All Rights Reserved.
 *
 * Cloudera, Inc. 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
 *
 * This software 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 com.cloudera.crunch;

import java.util.Arrays;

import org.apache.commons.lang.builder.HashCodeBuilder;

/**
 * A {@link Tuple} instance for an arbitrary number of values.
 */
public class TupleN implements Tuple {

    private final Object values[];

    public TupleN(Object... values) {
        this.values = new Object[values.length];
        System.arraycopy(values, 0, this.values, 0, values.length);
    }

    public Object get(int index) {
        return values[index];
    }

    public int size() {
        return values.length;
    }

    @Override
    public int hashCode() {
        HashCodeBuilder hcb = new HashCodeBuilder();
        for (Object v : values) {
            hcb.append(v);
        }
        return hcb.toHashCode();
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        TupleN other = (TupleN) obj;
        return Arrays.equals(this.values, other.values);
    }

    @Override
    public String toString() {
        return Arrays.toString(values);
    }
}