/*
 * Copyright 2002-2008 the original author or authors.
 *
 * 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.springframework.config.java.annotation;

/**
 * Signifies {@link Bean}s as primary for disambiguation when looking up beans by type.
 *
 * @author  Chris Beams
 * @see     Bean#primary()
 * @see     org.springframework.config.java.internal.factory.TypeSafeBeanFactory#getBean(Class)
 */
public enum Primary implements BooleanEnum {

    UNSPECIFIED(-1), FALSE(0), TRUE(1);

    private final int value;

    Primary(int value) { this.value = value; }

    public int value() { return value; }

    public boolean booleanValue() { return this == TRUE; }

}
