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//$Id: SimpleValueBinder.java 10938 2006-12-07 05:21:17Z epbernard $
package org.hibernate.cfg.annotations;
import java.io.Serializable;
import java.sql.Types;
import java.util.Calendar;
import java.util.Date;
import java.util.Properties;
import javax.persistence.Enumerated;
import javax.persistence.Lob;
import javax.persistence.Temporal;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.AnnotationException;
import org.hibernate.AssertionFailure;
import org.hibernate.annotations.Parameter;
import org.hibernate.annotations.Type;
import org.hibernate.cfg.BinderHelper;
import org.hibernate.cfg.Ejb3Column;
import org.hibernate.cfg.ExtendedMappings;
import org.hibernate.cfg.NotYetImplementedException;
import org.hibernate.mapping.SimpleValue;
import org.hibernate.mapping.Table;
import org.hibernate.reflection.XClass;
import org.hibernate.reflection.XProperty;
import org.hibernate.type.ByteArrayBlobType;
import org.hibernate.type.CharacterArrayClobType;
import org.hibernate.type.EnumType;
import org.hibernate.type.PrimitiveByteArrayBlobType;
import org.hibernate.type.PrimitiveCharacterArrayClobType;
import org.hibernate.type.SerializableToBlobType;
import org.hibernate.type.StringClobType;
import org.hibernate.util.StringHelper;
/**
* @author Emmanuel Bernard
*/
public class SimpleValueBinder {
private static Log log = LogFactory.getLog( SimpleValueBinder.class );
private String propertyName;
private String returnedClassName;
private Ejb3Column[] columns;
private String persistentClassName;
private String explicitType = "";
private Properties typeParameters = new Properties();
private ExtendedMappings mappings;
private Table table;
public void setPropertyName(String propertyName) {
this.propertyName = propertyName;
}
public void setReturnedClassName(String returnedClassName) {
this.returnedClassName = returnedClassName;
}
public void setTable(Table table) {
this.table = table;
}
public void setColumns(Ejb3Column[] columns) {
this.columns = columns;
}
public void setPersistentClassName(String persistentClassName) {
this.persistentClassName = persistentClassName;
}
//TODO execute it lazily to be order safe
public void setType(XProperty property, XClass returnedClass) {
if ( returnedClass == null ) return; //we cannot guess anything
XClass returnedClassOrElement = returnedClass;
boolean isArray = false;
if ( property.isArray() ) {
returnedClassOrElement = property.getElementClass();
isArray = true;
}
Properties typeParameters = this.typeParameters;
typeParameters.clear();
String type = BinderHelper.ANNOTATION_STRING_DEFAULT;
if ( property.isAnnotationPresent( Temporal.class ) ) {
Temporal ann = property.getAnnotation( Temporal.class );
boolean isDate;
if ( mappings.getReflectionManager().equals( returnedClassOrElement, Date.class ) ) {
isDate = true;
}
else if ( mappings.getReflectionManager().equals( returnedClassOrElement, Calendar.class ) ) {
isDate = false;
}
else {
throw new AnnotationException(
"@Temporal should be set on a java.util.Date or java.util.Calendar property: "
+ StringHelper.qualify( persistentClassName, propertyName )
);
}
switch ( ann.value() ) {
case DATE:
type = isDate ? "date" : "calendar_date";
break;
case TIME:
type = "time";
if ( ! isDate ) {
throw new NotYetImplementedException(
"Calendar cannot persist TIME only"
+ StringHelper.qualify( persistentClassName, propertyName )
);
}
break;
case TIMESTAMP:
type = isDate ? "timestamp" : "calendar";
break;
default:
throw new AssertionFailure( "Unknown temporal type: " + ann.value() );
}
}
else if ( property.isAnnotationPresent( Lob.class ) ) {
if ( mappings.getReflectionManager().equals( returnedClassOrElement, java.sql.Clob.class ) ) {
type = "clob";
}
else if ( mappings.getReflectionManager().equals( returnedClassOrElement, java.sql.Blob.class ) ) {
type = "blob";
}
else if ( mappings.getReflectionManager().equals( returnedClassOrElement, String.class ) ) {
type = StringClobType.class.getName();
}
else if ( mappings.getReflectionManager().equals( returnedClassOrElement, Character.class ) && isArray ) {
type = CharacterArrayClobType.class.getName();
}
else if ( mappings.getReflectionManager().equals( returnedClassOrElement, char.class ) && isArray ) {
type = PrimitiveCharacterArrayClobType.class.getName();
}
else if ( mappings.getReflectionManager().equals( returnedClassOrElement, Byte.class ) && isArray ) {
type = ByteArrayBlobType.class.getName();
}
else if ( mappings.getReflectionManager().equals( returnedClassOrElement, byte.class ) && isArray ) {
type = PrimitiveByteArrayBlobType.class.getName();
}
else if ( mappings.getReflectionManager()
.toXClass( Serializable.class )
.isAssignableFrom( returnedClassOrElement ) ) {
type = SerializableToBlobType.class.getName();
//typeParameters = new Properties();
typeParameters.setProperty(
SerializableToBlobType.CLASS_NAME,
returnedClassOrElement.getName()
);
}
else {
type = "blob";
}
}
//implicit type will check basic types and Serializable classes
if ( columns == null ) {
throw new AssertionFailure( "SimpleValueBinder.setColumns should be set before SimpleValueBinder.setType" );
}
if ( BinderHelper.ANNOTATION_STRING_DEFAULT.equals( type ) ) {
if ( returnedClassOrElement.isEnum() ) {
type = EnumType.class.getName();
typeParameters = new Properties();
typeParameters.setProperty( EnumType.ENUM, returnedClassOrElement.getName() );
String schema = columns[0].getTable().getSchema();
schema = schema == null ? "" : schema;
String catalog = columns[0].getTable().getCatalog();
catalog = catalog == null ? "" : catalog;
typeParameters.setProperty( EnumType.SCHEMA, schema );
typeParameters.setProperty( EnumType.CATALOG, catalog );
typeParameters.setProperty( EnumType.TABLE, columns[0].getTable().getName() );
typeParameters.setProperty( EnumType.COLUMN, columns[0].getName() );
Enumerated enumAnn = property.getAnnotation( Enumerated.class );
if ( enumAnn != null ) {
javax.persistence.EnumType enumType = enumAnn.value();
if ( javax.persistence.EnumType.ORDINAL.equals( enumType ) ) {
typeParameters.setProperty( EnumType.TYPE, String.valueOf( Types.INTEGER ) );
}
else if ( javax.persistence.EnumType.STRING.equals( enumType ) ) {
typeParameters.setProperty( EnumType.TYPE, String.valueOf( Types.VARCHAR ) );
}
else {
throw new AssertionFailure( "Unknown EnumType: " + enumType );
}
}
}
}
explicitType = type;
this.typeParameters = typeParameters;
Type annType = (Type) property.getAnnotation( Type.class );
setExplicitType( annType );
}
public void setExplicitType(String explicitType) {
this.explicitType = explicitType;
}
//FIXME raise an assertion failure if setExplicitType(String) and setExplicitType(Type) are use at the same time
public void setExplicitType(Type typeAnn) {
if ( typeAnn != null ) {
explicitType = typeAnn.type();
typeParameters.clear();
for ( Parameter param : typeAnn.parameters() ) {
typeParameters.setProperty( param.name(), param.value() );
}
}
}
public void setMappings(ExtendedMappings mappings) {
this.mappings = mappings;
}
private void validate() {
//TODO check necessary params
Ejb3Column.checkPropertyConsistency( columns, propertyName );
}
public SimpleValue make() {
validate();
log.debug( "building SimpleValue for " + propertyName );
if (table == null) {
table = columns[0].getTable();
}
SimpleValue simpleValue = new SimpleValue( table );
return fillSimpleValue( simpleValue );
}
public SimpleValue fillSimpleValue(SimpleValue simpleValue) {
String type = BinderHelper.isDefault( explicitType ) ? returnedClassName : explicitType;
org.hibernate.mapping.TypeDef typeDef = mappings.getTypeDef( type );
if ( typeDef != null ) {
type = typeDef.getTypeClass();
simpleValue.setTypeParameters( typeDef.getParameters() );
}
if ( typeParameters != null && typeParameters.size() != 0 ) {
//explicit type params takes precedence over type def params
simpleValue.setTypeParameters( typeParameters );
}
simpleValue.setTypeName( type );
if ( persistentClassName != null ) {
simpleValue.setTypeUsingReflection( persistentClassName, propertyName );
}
for ( Ejb3Column column : columns ) {
column.linkWithValue( simpleValue );
}
return simpleValue;
}
}