org.eclipse.jdt.internal.compiler.env.EnumConstantSignature.java Source code

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Here is the source code for org.eclipse.jdt.internal.compiler.env.EnumConstantSignature.java

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/*******************************************************************************
 * Copyright (c) 2005, 2010 BEA Systems, Inc.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *    tyeung@bea.com - initial API and implementation
 *    olivier_thomann@ca.ibm.com - add hashCode() and equals(..) methods
 *******************************************************************************/
package org.eclipse.jdt.internal.compiler.env;

import java.util.Arrays;

import org.eclipse.jdt.core.compiler.CharOperation;

/**
 * Represents a reference to a enum constant in the class file.
 * One of the possible results for the default value of an annotation method.
 */
public class EnumConstantSignature {

    char[] typeName;
    char[] constName;

    public EnumConstantSignature(char[] typeName, char[] constName) {
        this.typeName = typeName;
        this.constName = constName;
    }

    /**
     * @return name of the type in the class file format
     */
    public char[] getTypeName() {
        return this.typeName;
    }

    /**
     * @return the name of the enum constant reference.
     */
    public char[] getEnumConstantName() {
        return this.constName;
    }

    @Override
    public String toString() {
        StringBuffer buffer = new StringBuffer();
        buffer.append(this.typeName);
        buffer.append('.');
        buffer.append(this.constName);
        return buffer.toString();
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + CharOperation.hashCode(this.constName);
        result = prime * result + CharOperation.hashCode(this.typeName);
        return result;
    }

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