org.hibernate.envers.internal.entities.RevisionTypeType Maven / Gradle / Ivy
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Hibernate's entity version (audit/history) support
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.envers.internal.entities;
import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import java.util.Objects;
import org.hibernate.HibernateException;
import org.hibernate.engine.spi.SharedSessionContractImplementor;
import org.hibernate.envers.RevisionType;
import org.hibernate.type.IntegerType;
import org.hibernate.usertype.UserType;
/**
* A hibernate type for the {@link RevisionType} enum.
*
* @author Adam Warski (adam at warski dot org)
*/
public class RevisionTypeType implements UserType, Serializable {
private static final long serialVersionUID = -1053201518229282688L;
private static final int[] SQL_TYPES = {Types.TINYINT};
@Override
public int[] sqlTypes() {
return SQL_TYPES;
}
@Override
public Class returnedClass() {
return RevisionType.class;
}
@Override
public RevisionType nullSafeGet(ResultSet resultSet, String[] names, SharedSessionContractImplementor session, Object owner)
throws HibernateException, SQLException {
final Integer representationInt = IntegerType.INSTANCE.nullSafeGet( resultSet, names[0], session );
return representationInt == null ?
null :
RevisionType.fromRepresentation( representationInt.byteValue() );
}
@Override
public void nullSafeSet(PreparedStatement preparedStatement, Object value, int index, SharedSessionContractImplementor session)
throws HibernateException, SQLException {
IntegerType.INSTANCE.nullSafeSet(
preparedStatement,
(value == null ? null : ( (RevisionType) value ).getRepresentation().intValue()),
index,
session
);
}
@Override
public Object deepCopy(Object value) throws HibernateException {
return value;
}
@Override
public boolean isMutable() {
return false;
}
@Override
public Object assemble(Serializable cached, Object owner) throws HibernateException {
return cached;
}
@Override
public Serializable disassemble(Object value) throws HibernateException {
return (Serializable) value;
}
@Override
public Object replace(Object original, Object target, Object owner) throws HibernateException {
return original;
}
@Override
public int hashCode(Object x) throws HibernateException {
return x.hashCode();
}
@Override
public boolean equals(Object x, Object y) throws HibernateException {
return Objects.equals( x, y );
}
}