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Anteros Bean Validation for Java.

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/*******************************************************************************
 * Copyright 2012 Anteros Tecnologia
 *  
 * 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 br.com.anteros.bean.validation.groups;

import br.com.anteros.core.utils.ObjectUtils;
import br.com.anteros.validation.api.groups.Default;

/**
 * Immutable object that wraps an interface representing a single group.
 */
public final class Group {
    /**
     * the Default Group
     */
    public static final Group DEFAULT = new Group(Default.class);

    private final Class group;

    /**
     * Create a new Group instance.
     * @param group
     */
    public Group(Class group) {
        this.group = group;
    }

    /**
     * Get the actual group class.
     * @return
     */
    public Class getGroup() {
        return group;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String toString() {
        return "Group{" + "group=" + group + '}';
    }

    /**
     * Learn whether the group represented is the default group.
     * @return boolean
     */
	public boolean isDefault() {
		return Default.class.equals(group);
	}

	/**
	 * {@inheritDoc}
	 */
    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o instanceof Group == false) return false;
        return ObjectUtils.equals(group, ((Group) o).group);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public int hashCode() {
        return (group != null ? group.hashCode() : 0);
    }
}