Reassignment.java

/**
 * Copyright 2010 JBoss Inc
 *
 * 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.jbpm.task;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Collections;
import java.util.List;

import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.OneToMany;
import javax.persistence.Table;

import org.jbpm.task.utils.CollectionUtils;

@Entity
@Table(name = "JBPM_REASSIGNMENT")
public class Reassignment implements Externalizable {
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	private long id;

	@OneToMany(cascade = CascadeType.ALL)
	@JoinColumn(name = "Reassignment_Documentation_Id", nullable = true)
	private List<I18NText> documentation = Collections.emptyList();

	@ManyToMany
	@JoinTable(name = "JBPM_REASSIGNMENT_POTENTIALOWNERS", joinColumns = @JoinColumn(name = "task_id"), inverseJoinColumns = @JoinColumn(name = "entity_id"))
	private List<OrganizationalEntity> potentialOwners = Collections
			.emptyList();

	public void writeExternal(final ObjectOutput out) throws IOException {
		out.writeLong(id);
		CollectionUtils.writeI18NTextList(documentation, out);
		CollectionUtils.writeOrganizationalEntityList(potentialOwners, out);
	}

	public void readExternal(final ObjectInput in) throws IOException,
			ClassNotFoundException {
		id = in.readLong();
		documentation = CollectionUtils.readI18NTextList(in);
		potentialOwners = CollectionUtils.readOrganizationalEntityList(in);
	}

	public Long getId() {
		return id;
	}

	public void setId(final long id) {
		this.id = id;
	}

	public List<I18NText> getDocumentation() {
		return documentation;
	}

	public void setDocumentation(final List<I18NText> documentation) {
		this.documentation = documentation;
	}

	public List<OrganizationalEntity> getPotentialOwners() {
		return potentialOwners;
	}

	public void setPotentialOwners(
			final List<OrganizationalEntity> potentialOwners) {
		this.potentialOwners = potentialOwners;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + CollectionUtils.hashCode(documentation);
		result = prime * result + CollectionUtils.hashCode(potentialOwners);
		return result;
	}

	@Override
	public boolean equals(final Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj == null) {
			return false;
		}
		if (!(obj instanceof Reassignment)) {
			return false;
		}
		final Reassignment other = (Reassignment) obj;
		return CollectionUtils.equals(documentation, other.documentation)
				&& CollectionUtils.equals(potentialOwners,
						other.potentialOwners);
	}

}