Hibernate example source code file (ExtractionDocumentInfo.java)

This example Hibernate source code file (ExtractionDocumentInfo.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

arraylist, conference, date, date, extractiondocument, extractiondocument, extractiondocumentinfo, extractiondocumentinfo, generatedvalue, id, io, list, long, transient, transient, util

The Hibernate ExtractionDocumentInfo.java source code

//$Id$
package org.hibernate.ejb.test.cascade;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.PreRemove;
import javax.persistence.Table;
import javax.persistence.Transient;

/**
 * @author Emmanuel Bernard
 */
@Entity
@Table(name = "portal_pk_docs_extraction_info")
//@Cache(usage = READ_WRITE)
@org.hibernate.annotations.Entity(dynamicInsert = true, dynamicUpdate = true)
public class ExtractionDocumentInfo implements Serializable {
	private Long id;
	private Date lastModified;
	private Conference conference;
	private List<ExtractionDocument> documents;


	public ExtractionDocumentInfo() {
		lastModified = new Date();
	}

	public ExtractionDocumentInfo(Conference conference) {
		this.conference = conference;
		lastModified = new Date();
		documents = new ArrayList<ExtractionDocument>();
		documents.add( new ExtractionDocument( this ) );
	}

	@Transient
	public ExtractionDocument getDocument() {
		if ( documents.isEmpty() ) {
			documents.add( new ExtractionDocument( this ) );
		}
		Iterator<ExtractionDocument> iterator = documents.iterator();
		return iterator.next();
	}

	@Transient
	public byte[] getBody() {
		return getDocument().getBody();
	}

	public void setBody(byte[] body) {
		getDocument().setBody( body );
	}

	@Id
	@GeneratedValue
	public Long getId() {
		return id;
	}

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

	@OneToMany(mappedBy = "documentInfo", cascade = CascadeType.ALL)
	public List<ExtractionDocument> getDocuments() {
		return documents;
	}

	public void setDocuments(List<ExtractionDocument> documents) {
		this.documents = documents;
	}


	@ManyToOne
	@JoinColumn(name = "conference_id")
	public Conference getConference() {
		return conference;
	}

	public void setConference(Conference conference) {
		this.conference = conference;
	}

	@Column(name = "last_modified", nullable = false)
	public Date getLastModified() {
		return lastModified;
	}

	public void setLastModified(Date lastModified) {
		this.lastModified = lastModified;
	}

	public boolean equals(Object o) {
		if ( this == o ) return true;
		if ( !( o instanceof ExtractionDocumentInfo ) ) return false;

		final ExtractionDocumentInfo newsInfo = (ExtractionDocumentInfo) o;

		return id.equals( newsInfo.id );
	}

	public int hashCode() {
		return id.hashCode();
	}

	@PreRemove
	public void preRemove() {
		getConference().setExtractionDocument( null );
	}
}