org.hibernate.type.descriptor.java.BooleanTypeDescriptor Maven / Gradle / Ivy
/*
* 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.type.descriptor.java;
import org.hibernate.type.descriptor.WrapperOptions;
import static java.lang.Boolean.FALSE;
import static java.lang.Boolean.TRUE;
/**
* Descriptor for {@link Boolean} handling.
*
* @author Steve Ebersole
*/
public class BooleanTypeDescriptor extends AbstractTypeDescriptor {
public static final BooleanTypeDescriptor INSTANCE = new BooleanTypeDescriptor();
private final char characterValueTrue;
private final char characterValueFalse;
private final char characterValueTrueLC;
private final String stringValueTrue;
private final String stringValueFalse;
public BooleanTypeDescriptor() {
this( 'Y', 'N' );
}
public BooleanTypeDescriptor(char characterValueTrue, char characterValueFalse) {
super( Boolean.class );
this.characterValueTrue = Character.toUpperCase( characterValueTrue );
this.characterValueFalse = Character.toUpperCase( characterValueFalse );
characterValueTrueLC = Character.toLowerCase( characterValueTrue );
stringValueTrue = String.valueOf( characterValueTrue );
stringValueFalse = String.valueOf( characterValueFalse );
}
@Override
public String toString(Boolean value) {
return value == null ? null : value.toString();
}
@Override
public Boolean fromString(String string) {
return Boolean.valueOf( string );
}
@SuppressWarnings({ "unchecked" })
@Override
public X unwrap(Boolean value, Class type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Boolean.class.isAssignableFrom( type ) ) {
return (X) value;
}
if ( Byte.class.isAssignableFrom( type ) ) {
return (X) toByte( value );
}
if ( Short.class.isAssignableFrom( type ) ) {
return (X) toShort( value );
}
if ( Integer.class.isAssignableFrom( type ) ) {
return (X) toInteger( value );
}
if ( Long.class.isAssignableFrom( type ) ) {
return (X) toInteger( value );
}
if ( Character.class.isAssignableFrom( type ) ) {
return (X) Character.valueOf( value ? characterValueTrue : characterValueFalse );
}
if ( String.class.isAssignableFrom( type ) ) {
return (X) (value ? stringValueTrue : stringValueFalse);
}
throw unknownUnwrap( type );
}
@Override
public Boolean wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Boolean.class.isInstance( value ) ) {
return (Boolean) value;
}
if ( Number.class.isInstance( value ) ) {
final int intValue = ( (Number) value ).intValue();
return intValue == 0 ? FALSE : TRUE;
}
if ( Character.class.isInstance( value ) ) {
return isTrue( (Character) value ) ? TRUE : FALSE;
}
if ( String.class.isInstance( value ) ) {
return isTrue((String) value) ? TRUE : FALSE;
}
throw unknownWrap( value.getClass() );
}
private boolean isTrue(String strValue) {
if (strValue != null && !strValue.isEmpty()) {
return isTrue(strValue.charAt(0));
}
return false;
}
private boolean isTrue(char charValue) {
return charValue == characterValueTrue || charValue == characterValueTrueLC;
}
public int toInt(Boolean value) {
return value ? 1 : 0;
}
public Byte toByte(Boolean value) {
return (byte) toInt( value );
}
public Short toShort(Boolean value) {
return (short) toInt( value );
}
public Integer toInteger(Boolean value) {
return toInt( value );
}
public Long toLong(Boolean value) {
return (long) toInt( value );
}
}