UnsavedValueFactorypublic class UnsavedValueFactory extends Object
| Methods Summary |
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| public static IdentifierValue | getUnsavedIdentifierValue(java.lang.String unsavedValue, org.hibernate.property.Getter identifierGetter, org.hibernate.type.Type identifierType, java.lang.reflect.Constructor constructor)Return an IdentifierValue for the specified unsaved-value. If none is specified,
guess the unsaved value by instantiating a test instance of the class and
reading it's id property, or if that is not possible, using the java default
value for the type
if ( unsavedValue == null ) {
if ( identifierGetter!=null && constructor!=null ) {
// use the id value of a newly instantiated instance as the unsaved-value
Serializable defaultValue = (Serializable) identifierGetter.get( instantiate(constructor) );
return new IdentifierValue( defaultValue );
}
else if ( identifierGetter != null && (identifierType instanceof PrimitiveType) ) {
Serializable defaultValue = ( ( PrimitiveType ) identifierType ).getDefaultValue();
return new IdentifierValue( defaultValue );
}
else {
return IdentifierValue.NULL;
}
}
else if ( "null".equals( unsavedValue ) ) {
return IdentifierValue.NULL;
}
else if ( "undefined".equals( unsavedValue ) ) {
return IdentifierValue.UNDEFINED;
}
else if ( "none".equals( unsavedValue ) ) {
return IdentifierValue.NONE;
}
else if ( "any".equals( unsavedValue ) ) {
return IdentifierValue.ANY;
}
else {
try {
return new IdentifierValue( ( Serializable ) ( ( IdentifierType ) identifierType ).stringToObject( unsavedValue ) );
}
catch ( ClassCastException cce ) {
throw new MappingException( "Bad identifier type: " + identifierType.getName() );
}
catch ( Exception e ) {
throw new MappingException( "Could not parse identifier unsaved-value: " + unsavedValue );
}
}
| | public static VersionValue | getUnsavedVersionValue(java.lang.String versionUnsavedValue, org.hibernate.property.Getter versionGetter, org.hibernate.type.VersionType versionType, java.lang.reflect.Constructor constructor)
if ( versionUnsavedValue == null ) {
if ( constructor!=null ) {
Object defaultValue = versionGetter.get( instantiate(constructor) );
// if the version of a newly instantiated object is not the same
// as the version seed value, use that as the unsaved-value
return versionType.isEqual( versionType.seed( null ), defaultValue ) ?
VersionValue.UNDEFINED :
new VersionValue( defaultValue );
}
else {
return VersionValue.UNDEFINED;
}
}
else if ( "undefined".equals( versionUnsavedValue ) ) {
return VersionValue.UNDEFINED;
}
else if ( "null".equals( versionUnsavedValue ) ) {
return VersionValue.NULL;
}
else if ( "negative".equals( versionUnsavedValue ) ) {
return VersionValue.NEGATIVE;
}
else {
// this should not happen since the DTD prevents it
throw new MappingException( "Could not parse version unsaved-value: " + versionUnsavedValue );
}
| | private static java.lang.Object | instantiate(java.lang.reflect.Constructor constructor)
try {
return constructor.newInstance(null);
}
catch (Exception e) {
throw new InstantiationException( "could not instantiate test object", constructor.getDeclaringClass(), e );
}
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