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org.hibernate.bytecode.enhance.spi.Enhancer Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2012, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.bytecode.enhance.spi;
import javax.persistence.Transient;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Map;
import javassist.CannotCompileException;
import javassist.ClassPool;
import javassist.CtClass;
import javassist.CtField;
import javassist.CtMethod;
import javassist.CtNewMethod;
import javassist.LoaderClassPath;
import javassist.Modifier;
import javassist.NotFoundException;
import javassist.bytecode.AnnotationsAttribute;
import javassist.bytecode.BadBytecode;
import javassist.bytecode.CodeAttribute;
import javassist.bytecode.CodeIterator;
import javassist.bytecode.ConstPool;
import javassist.bytecode.FieldInfo;
import javassist.bytecode.MethodInfo;
import javassist.bytecode.Opcode;
import javassist.bytecode.StackMapTable;
import javassist.bytecode.annotation.Annotation;
import javassist.bytecode.stackmap.MapMaker;
import org.jboss.logging.Logger;
import org.hibernate.HibernateException;
import org.hibernate.bytecode.enhance.EnhancementException;
import org.hibernate.engine.spi.EntityEntry;
import org.hibernate.engine.spi.ManagedComposite;
import org.hibernate.engine.spi.ManagedEntity;
import org.hibernate.engine.spi.PersistentAttributeInterceptable;
import org.hibernate.engine.spi.PersistentAttributeInterceptor;
import org.hibernate.internal.CoreMessageLogger;
import org.hibernate.mapping.PersistentClass;
/**
* @author Steve Ebersole
* @author Jason Greene
*/
public class Enhancer {
private static final CoreMessageLogger log = Logger.getMessageLogger( CoreMessageLogger.class, Enhancer.class.getName() );
public static final String PERSISTENT_FIELD_READER_PREFIX = "$$_hibernate_read_";
public static final String PERSISTENT_FIELD_WRITER_PREFIX = "$$_hibernate_write_";
public static final String ENTITY_INSTANCE_GETTER_NAME = "$$_hibernate_getEntityInstance";
public static final String ENTITY_ENTRY_FIELD_NAME = "$$_hibernate_entityEntryHolder";
public static final String ENTITY_ENTRY_GETTER_NAME = "$$_hibernate_getEntityEntry";
public static final String ENTITY_ENTRY_SETTER_NAME = "$$_hibernate_setEntityEntry";
public static final String PREVIOUS_FIELD_NAME = "$$_hibernate_previousManagedEntity";
public static final String PREVIOUS_GETTER_NAME = "$$_hibernate_getPreviousManagedEntity";
public static final String PREVIOUS_SETTER_NAME = "$$_hibernate_setPreviousManagedEntity";
public static final String NEXT_FIELD_NAME = "$$_hibernate_nextManagedEntity";
public static final String NEXT_GETTER_NAME = "$$_hibernate_getNextManagedEntity";
public static final String NEXT_SETTER_NAME = "$$_hibernate_setNextManagedEntity";
public static final String INTERCEPTOR_FIELD_NAME = "$$_hibernate_attributeInterceptor";
public static final String INTERCEPTOR_GETTER_NAME = "$$_hibernate_getInterceptor";
public static final String INTERCEPTOR_SETTER_NAME = "$$_hibernate_setInterceptor";
private final EnhancementContext enhancementContext;
private final ClassPool classPool;
private final CtClass managedEntityCtClass;
private final CtClass managedCompositeCtClass;
private final CtClass attributeInterceptorCtClass;
private final CtClass attributeInterceptableCtClass;
private final CtClass entityEntryCtClass;
private final CtClass objectCtClass;
public Enhancer(EnhancementContext enhancementContext) {
this.enhancementContext = enhancementContext;
this.classPool = buildClassPool( enhancementContext );
try {
// add ManagedEntity contract
this.managedEntityCtClass = classPool.makeClass(
ManagedEntity.class.getClassLoader().getResourceAsStream(
ManagedEntity.class.getName().replace( '.', '/' ) + ".class"
)
);
// add ManagedComposite contract
this.managedCompositeCtClass = classPool.makeClass(
ManagedComposite.class.getClassLoader().getResourceAsStream(
ManagedComposite.class.getName().replace( '.', '/' ) + ".class"
)
);
// add PersistentAttributeInterceptable contract
this.attributeInterceptableCtClass = classPool.makeClass(
PersistentAttributeInterceptable.class.getClassLoader().getResourceAsStream(
PersistentAttributeInterceptable.class.getName().replace( '.', '/' ) + ".class"
)
);
// add PersistentAttributeInterceptor contract
this.attributeInterceptorCtClass = classPool.makeClass(
PersistentAttributeInterceptor.class.getClassLoader().getResourceAsStream(
PersistentAttributeInterceptor.class.getName().replace( '.', '/' ) + ".class"
)
);
// "add" EntityEntry
this.entityEntryCtClass = classPool.makeClass( EntityEntry.class.getName() );
}
catch (IOException e) {
throw new EnhancementException( "Could not prepare Javassist ClassPool", e );
}
try {
this.objectCtClass = classPool.getCtClass( Object.class.getName() );
}
catch (NotFoundException e) {
throw new EnhancementException( "Could not prepare Javassist ClassPool", e );
}
}
private ClassPool buildClassPool(EnhancementContext enhancementContext) {
ClassPool classPool = new ClassPool( false );
ClassLoader loadingClassLoader = enhancementContext.getLoadingClassLoader();
if ( loadingClassLoader != null ) {
classPool.appendClassPath( new LoaderClassPath( loadingClassLoader ) );
}
return classPool;
}
/**
* Performs the enhancement.
*
* @param className The name of the class whose bytecode is being enhanced.
* @param originalBytes The class's original (pre-enhancement) byte code
*
* @return The enhanced bytecode. Could be the same as the original bytecode if the original was
* already enhanced or we could not enhance it for some reason.
*
* @throws EnhancementException
*/
public byte[] enhance(String className, byte[] originalBytes) throws EnhancementException {
final CtClass managedCtClass;
try {
managedCtClass = classPool.makeClassIfNew( new ByteArrayInputStream( originalBytes ) );
}
catch (IOException e) {
log.unableToBuildEnhancementMetamodel( className );
return originalBytes;
}
enhance( managedCtClass );
DataOutputStream out = null;
try {
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
out = new DataOutputStream( byteStream );
managedCtClass.toBytecode( out );
return byteStream.toByteArray();
}
catch (Exception e) {
log.unableToTransformClass( e.getMessage() );
throw new HibernateException( "Unable to transform class: " + e.getMessage() );
}
finally {
try {
if ( out != null ) {
out.close();
}
}
catch (IOException e) {
//swallow
}
}
}
private void enhance(CtClass managedCtClass) {
final String className = managedCtClass.getName();
log.debugf( "Enhancing %s", className );
// can't effectively enhance interfaces
if ( managedCtClass.isInterface() ) {
log.debug( "skipping enhancement : interface" );
return;
}
// skip already enhanced classes
final String[] interfaceNames = managedCtClass.getClassFile2().getInterfaces();
for ( String interfaceName : interfaceNames ) {
if ( ManagedEntity.class.getName().equals( interfaceName )
|| ManagedComposite.class.getName().equals( interfaceName ) ) {
log.debug( "skipping enhancement : already enhanced" );
return;
}
}
if ( enhancementContext.isEntityClass( managedCtClass ) ) {
enhanceAsEntity( managedCtClass );
}
else if ( enhancementContext.isCompositeClass( managedCtClass ) ) {
enhanceAsComposite( managedCtClass );
}
else {
log.debug( "skipping enhancement : not entity or composite" );
}
}
private void enhanceAsEntity(CtClass managedCtClass) {
// add the ManagedEntity interface
managedCtClass.addInterface( managedEntityCtClass );
enhancePersistentAttributes( managedCtClass );
addEntityInstanceHandling( managedCtClass );
addEntityEntryHandling( managedCtClass );
addLinkedPreviousHandling( managedCtClass );
addLinkedNextHandling( managedCtClass );
}
private void enhanceAsComposite(CtClass managedCtClass) {
enhancePersistentAttributes( managedCtClass );
}
private void addEntityInstanceHandling(CtClass managedCtClass) {
// add the ManagedEntity#$$_hibernate_getEntityInstance method
try {
managedCtClass.addMethod(
CtNewMethod.make(
objectCtClass,
ENTITY_INSTANCE_GETTER_NAME,
new CtClass[0],
new CtClass[0],
"{ return this; }",
managedCtClass
)
);
}
catch (CannotCompileException e) {
throw new EnhancementException(
String.format(
"Could not enhance entity class [%s] to add EntityEntry getter",
managedCtClass.getName()
),
e
);
}
}
private void addEntityEntryHandling(CtClass managedCtClass) {
addFieldWithGetterAndSetter(
managedCtClass,
entityEntryCtClass,
ENTITY_ENTRY_FIELD_NAME,
ENTITY_ENTRY_GETTER_NAME,
ENTITY_ENTRY_SETTER_NAME
);
}
private void addLinkedPreviousHandling(CtClass managedCtClass) {
addFieldWithGetterAndSetter(
managedCtClass,
managedEntityCtClass,
PREVIOUS_FIELD_NAME,
PREVIOUS_GETTER_NAME,
PREVIOUS_SETTER_NAME
);
}
private void addLinkedNextHandling(CtClass managedCtClass) {
addFieldWithGetterAndSetter(
managedCtClass,
managedEntityCtClass,
NEXT_FIELD_NAME,
NEXT_GETTER_NAME,
NEXT_SETTER_NAME
);
}
private AnnotationsAttribute getVisibleAnnotations(FieldInfo fieldInfo) {
AnnotationsAttribute annotationsAttribute = (AnnotationsAttribute) fieldInfo.getAttribute( AnnotationsAttribute.visibleTag );
if ( annotationsAttribute == null ) {
annotationsAttribute = new AnnotationsAttribute( fieldInfo.getConstPool(), AnnotationsAttribute.visibleTag );
fieldInfo.addAttribute( annotationsAttribute );
}
return annotationsAttribute;
}
private void enhancePersistentAttributes(CtClass managedCtClass) {
addInterceptorHandling( managedCtClass );
if ( enhancementContext.doDirtyCheckingInline( managedCtClass ) ) {
addInLineDirtyHandling( managedCtClass );
}
final IdentityHashMap attrDescriptorMap
= new IdentityHashMap();
for ( CtField persistentField : collectPersistentFields( managedCtClass ) ) {
attrDescriptorMap.put(
persistentField.getName(),
enhancePersistentAttribute( managedCtClass, persistentField )
);
}
// lastly, find all references to the transformed fields and replace with calls to the added reader/writer
transformFieldAccessesIntoReadsAndWrites( managedCtClass, attrDescriptorMap );
}
private PersistentAttributeDescriptor enhancePersistentAttribute(CtClass managedCtClass, CtField persistentField) {
try {
final AttributeTypeDescriptor typeDescriptor = resolveAttributeTypeDescriptor( persistentField );
return new PersistentAttributeDescriptor(
persistentField,
generateFieldReader( managedCtClass, persistentField, typeDescriptor ),
generateFieldWriter( managedCtClass, persistentField, typeDescriptor ),
typeDescriptor
);
}
catch (Exception e) {
throw new EnhancementException(
String.format(
"Unable to enhance persistent attribute [%s:%s]",
managedCtClass.getName(),
persistentField.getName()
),
e
);
}
}
private CtField[] collectPersistentFields(CtClass managedCtClass) {
// todo : drive this from the Hibernate metamodel instance...
final List persistentFieldList = new ArrayList();
for ( CtField ctField : managedCtClass.getDeclaredFields() ) {
// skip static fields
if ( Modifier.isStatic( ctField.getModifiers() ) ) {
continue;
}
// skip fields added by enhancement
if ( ctField.getName().startsWith( "$" ) ) {
continue;
}
if ( enhancementContext.isPersistentField( ctField ) ) {
persistentFieldList.add( ctField );
}
}
return enhancementContext.order( persistentFieldList.toArray( new CtField[persistentFieldList.size()]) );
}
private void addInterceptorHandling(CtClass managedCtClass) {
// interceptor handling is only needed if either:
// a) in-line dirty checking has *not* been requested
// b) class has lazy-loadable attributes
if ( enhancementContext.doDirtyCheckingInline( managedCtClass )
&& ! enhancementContext.hasLazyLoadableAttributes( managedCtClass ) ) {
return;
}
log.debug( "Weaving in PersistentAttributeInterceptable implementation" );
// add in the PersistentAttributeInterceptable contract
managedCtClass.addInterface( attributeInterceptableCtClass );
addFieldWithGetterAndSetter(
managedCtClass,
attributeInterceptorCtClass,
INTERCEPTOR_FIELD_NAME,
INTERCEPTOR_GETTER_NAME,
INTERCEPTOR_SETTER_NAME
);
}
private void addInLineDirtyHandling(CtClass managedCtClass) {
// todo : implement
}
private void addFieldWithGetterAndSetter(
CtClass targetClass,
CtClass fieldType,
String fieldName,
String getterName,
String setterName) {
final CtField theField = addField( targetClass, fieldType, fieldName, true );
addGetter( targetClass, theField, getterName );
addSetter( targetClass, theField, setterName );
}
private CtField addField(CtClass targetClass, CtClass fieldType, String fieldName, boolean makeTransient) {
final ConstPool constPool = targetClass.getClassFile().getConstPool();
final CtField theField;
try {
theField = new CtField( fieldType, fieldName, targetClass );
targetClass.addField( theField );
}
catch (CannotCompileException e) {
throw new EnhancementException(
String.format(
"Could not enhance class [%s] to add field [%s]",
targetClass.getName(),
fieldName
),
e
);
}
// make that new field (1) private, (2) transient and (3) @Transient
if ( makeTransient ) {
theField.setModifiers( theField.getModifiers() | Modifier.TRANSIENT );
}
theField.setModifiers( Modifier.setPrivate( theField.getModifiers() ) );
AnnotationsAttribute annotationsAttribute = getVisibleAnnotations( theField.getFieldInfo() );
annotationsAttribute.addAnnotation( new Annotation( Transient.class.getName(), constPool ) );
return theField;
}
private void addGetter(CtClass targetClass, CtField theField, String getterName) {
try {
targetClass.addMethod( CtNewMethod.getter( getterName, theField ) );
}
catch (CannotCompileException e) {
throw new EnhancementException(
String.format(
"Could not enhance entity class [%s] to add getter method [%s]",
targetClass.getName(),
getterName
),
e
);
}
}
private void addSetter(CtClass targetClass, CtField theField, String setterName) {
try {
targetClass.addMethod( CtNewMethod.setter( setterName, theField ) );
}
catch (CannotCompileException e) {
throw new EnhancementException(
String.format(
"Could not enhance entity class [%s] to add setter method [%s]",
targetClass.getName(),
setterName
),
e
);
}
}
private CtMethod generateFieldReader(
CtClass managedCtClass,
CtField persistentField,
AttributeTypeDescriptor typeDescriptor)
throws BadBytecode, CannotCompileException {
final FieldInfo fieldInfo = persistentField.getFieldInfo();
final String fieldName = fieldInfo.getName();
final String readerName = PERSISTENT_FIELD_READER_PREFIX + fieldName;
// read attempts only have to deal lazy-loading support, not dirty checking; so if the field
// is not enabled as lazy-loadable return a plain simple getter as the reader
if ( ! enhancementContext.isLazyLoadable( persistentField ) ) {
// not lazy-loadable...
// EARLY RETURN!!!
try {
CtMethod reader = CtNewMethod.getter( readerName, persistentField );
managedCtClass.addMethod( reader );
return reader;
}
catch (CannotCompileException e) {
throw new EnhancementException(
String.format(
"Could not enhance entity class [%s] to add field reader method [%s]",
managedCtClass.getName(),
readerName
),
e
);
}
}
// temporary solution...
String methodBody = typeDescriptor.buildReadInterceptionBodyFragment( fieldName )
+ " return this." + fieldName + ";";
try {
CtMethod reader = CtNewMethod.make(
Modifier.PRIVATE,
persistentField.getType(),
readerName,
null,
null,
"{" + methodBody + "}",
managedCtClass
);
managedCtClass.addMethod( reader );
return reader;
}
catch (Exception e) {
throw new EnhancementException(
String.format(
"Could not enhance entity class [%s] to add field reader method [%s]",
managedCtClass.getName(),
readerName
),
e
);
}
}
private CtMethod generateFieldWriter(
CtClass managedCtClass,
CtField persistentField,
AttributeTypeDescriptor typeDescriptor) {
final FieldInfo fieldInfo = persistentField.getFieldInfo();
final String fieldName = fieldInfo.getName();
final String writerName = PERSISTENT_FIELD_WRITER_PREFIX + fieldName;
final CtMethod writer;
try {
if ( ! enhancementContext.isLazyLoadable( persistentField ) ) {
// not lazy-loadable...
writer = CtNewMethod.setter( writerName, persistentField );
}
else {
String methodBody = typeDescriptor.buildWriteInterceptionBodyFragment( fieldName );
writer = CtNewMethod.make(
Modifier.PRIVATE,
CtClass.voidType,
writerName,
new CtClass[] { persistentField.getType() },
null,
"{" + methodBody + "}",
managedCtClass
);
}
if ( enhancementContext.doDirtyCheckingInline( managedCtClass ) ) {
writer.insertBefore( typeDescriptor.buildInLineDirtyCheckingBodyFragment( fieldName ) );
}
managedCtClass.addMethod( writer );
return writer;
}
catch (Exception e) {
throw new EnhancementException(
String.format(
"Could not enhance entity class [%s] to add field writer method [%s]",
managedCtClass.getName(),
writerName
),
e
);
}
}
private void transformFieldAccessesIntoReadsAndWrites(
CtClass managedCtClass,
IdentityHashMap attributeDescriptorMap) {
final ConstPool constPool = managedCtClass.getClassFile().getConstPool();
for ( Object oMethod : managedCtClass.getClassFile().getMethods() ) {
final MethodInfo methodInfo = (MethodInfo) oMethod;
final String methodName = methodInfo.getName();
// skip methods added by enhancement
if ( methodName.startsWith( PERSISTENT_FIELD_READER_PREFIX )
|| methodName.startsWith( PERSISTENT_FIELD_WRITER_PREFIX )
|| methodName.equals( ENTITY_INSTANCE_GETTER_NAME )
|| methodName.equals( ENTITY_ENTRY_GETTER_NAME )
|| methodName.equals( ENTITY_ENTRY_SETTER_NAME )
|| methodName.equals( PREVIOUS_GETTER_NAME )
|| methodName.equals( PREVIOUS_SETTER_NAME )
|| methodName.equals( NEXT_GETTER_NAME )
|| methodName.equals( NEXT_SETTER_NAME ) ) {
continue;
}
final CodeAttribute codeAttr = methodInfo.getCodeAttribute();
if ( codeAttr == null ) {
// would indicate an abstract method, continue to next method
continue;
}
try {
CodeIterator itr = codeAttr.iterator();
while ( itr.hasNext() ) {
int index = itr.next();
int op = itr.byteAt( index );
if ( op != Opcode.PUTFIELD && op != Opcode.GETFIELD ) {
continue;
}
int constIndex = itr.u16bitAt( index+1 );
final String fieldName = constPool.getFieldrefName( constIndex );
final PersistentAttributeDescriptor attributeDescriptor = attributeDescriptorMap.get( fieldName );
if ( attributeDescriptor == null ) {
// its not a field we have enhanced for interception, so skip it
continue;
}
log.tracef(
"Transforming access to field [%s] from method [%s]",
fieldName,
methodName
);
if ( op == Opcode.GETFIELD ) {
int read_method_index = constPool.addMethodrefInfo(
constPool.getThisClassInfo(),
attributeDescriptor.getReader().getName(),
attributeDescriptor.getReader().getSignature()
);
itr.writeByte( Opcode.INVOKESPECIAL, index );
itr.write16bit( read_method_index, index+1 );
}
else {
int write_method_index = constPool.addMethodrefInfo(
constPool.getThisClassInfo(),
attributeDescriptor.getWriter().getName(),
attributeDescriptor.getWriter().getSignature()
);
itr.writeByte( Opcode.INVOKESPECIAL, index );
itr.write16bit( write_method_index, index+1 );
}
}
StackMapTable smt = MapMaker.make( classPool, methodInfo );
methodInfo.getCodeAttribute().setAttribute(smt);
}
catch (BadBytecode e) {
throw new EnhancementException(
"Unable to perform field access transformation in method : " + methodName,
e
);
}
}
}
private static class PersistentAttributeDescriptor {
private final CtField field;
private final CtMethod reader;
private final CtMethod writer;
private final AttributeTypeDescriptor typeDescriptor;
private PersistentAttributeDescriptor(
CtField field,
CtMethod reader,
CtMethod writer,
AttributeTypeDescriptor typeDescriptor) {
this.field = field;
this.reader = reader;
this.writer = writer;
this.typeDescriptor = typeDescriptor;
}
public CtField getField() {
return field;
}
public CtMethod getReader() {
return reader;
}
public CtMethod getWriter() {
return writer;
}
public AttributeTypeDescriptor getTypeDescriptor() {
return typeDescriptor;
}
}
private static interface AttributeTypeDescriptor {
public String buildReadInterceptionBodyFragment(String fieldName);
public String buildWriteInterceptionBodyFragment(String fieldName);
public String buildInLineDirtyCheckingBodyFragment(String fieldName);
}
private AttributeTypeDescriptor resolveAttributeTypeDescriptor(CtField persistentField) throws NotFoundException {
// for now cheat... we know we only have Object fields
if ( persistentField.getType() == CtClass.booleanType ) {
return BOOLEAN_DESCRIPTOR;
}
else if ( persistentField.getType() == CtClass.byteType ) {
return BYTE_DESCRIPTOR;
}
else if ( persistentField.getType() == CtClass.charType ) {
return CHAR_DESCRIPTOR;
}
else if ( persistentField.getType() == CtClass.shortType ) {
return SHORT_DESCRIPTOR;
}
else if ( persistentField.getType() == CtClass.intType ) {
return INT_DESCRIPTOR;
}
else if ( persistentField.getType() == CtClass.longType ) {
return LONG_DESCRIPTOR;
}
else if ( persistentField.getType() == CtClass.doubleType ) {
return DOUBLE_DESCRIPTOR;
}
else if ( persistentField.getType() == CtClass.floatType ) {
return FLOAT_DESCRIPTOR;
}
else {
return new ObjectAttributeTypeDescriptor( persistentField.getType() );
}
}
private static abstract class AbstractAttributeTypeDescriptor implements AttributeTypeDescriptor {
@Override
public String buildInLineDirtyCheckingBodyFragment(String fieldName) {
// for now...
// todo : hook-in in-lined dirty checking
return String.format(
"System.out.println( \"DIRTY CHECK (%1$s) : \" + this.%1$s + \" -> \" + $1 + \" (dirty=\" + (this.%1$s != $1) +\")\" );",
fieldName
);
}
}
private static class ObjectAttributeTypeDescriptor extends AbstractAttributeTypeDescriptor {
private final CtClass concreteType;
private ObjectAttributeTypeDescriptor(CtClass concreteType) {
this.concreteType = concreteType;
}
@Override
public String buildReadInterceptionBodyFragment(String fieldName) {
return String.format(
"if ( $$_hibernate_getInterceptor() != null ) { " +
"this.%1$s = (%2$s) $$_hibernate_getInterceptor().readObject(this, \"%1$s\", this.%1$s); " +
"}",
fieldName,
concreteType.getName()
);
}
@Override
public String buildWriteInterceptionBodyFragment(String fieldName) {
return String.format(
"%2$s localVar = $1;" +
"if ( $$_hibernate_getInterceptor() != null ) {" +
"localVar = (%2$s) $$_hibernate_getInterceptor().writeObject(this, \"%1$s\", this.%1$s, $1);" +
"}" +
"this.%1$s = localVar;",
fieldName,
concreteType.getName()
);
}
}
private static final AttributeTypeDescriptor BOOLEAN_DESCRIPTOR = new AbstractAttributeTypeDescriptor() {
@Override
public String buildReadInterceptionBodyFragment(String fieldName) {
return String.format(
"if ( $$_hibernate_getInterceptor() != null ) { " +
"this.%1$s = $$_hibernate_getInterceptor().readBoolean(this, \"%1$s\", this.%1$s); " +
"}",
fieldName
);
}
@Override
public String buildWriteInterceptionBodyFragment(String fieldName) {
return String.format(
"boolean localVar = $1;" +
"if ( $$_hibernate_getInterceptor() != null ) {" +
"localVar = $$_hibernate_getInterceptor().writeBoolean(this, \"%1$s\", this.%1$s, $1);" +
"}" +
"this.%1$s = localVar;",
fieldName
);
}
};
private static final AttributeTypeDescriptor BYTE_DESCRIPTOR = new AbstractAttributeTypeDescriptor() {
@Override
public String buildReadInterceptionBodyFragment(String fieldName) {
return String.format(
"if ( $$_hibernate_getInterceptor() != null ) { " +
"this.%1$s = $$_hibernate_getInterceptor().readByte(this, \"%1$s\", this.%1$s); " +
"}",
fieldName
);
}
@Override
public String buildWriteInterceptionBodyFragment(String fieldName) {
return String.format(
"byte localVar = $1;" +
"if ( $$_hibernate_getInterceptor() != null ) {" +
"localVar = $$_hibernate_getInterceptor().writeByte(this, \"%1$s\", this.%1$s, $1);" +
"}" +
"this.%1$s = localVar;",
fieldName
);
}
};
private static final AttributeTypeDescriptor CHAR_DESCRIPTOR = new AbstractAttributeTypeDescriptor() {
@Override
public String buildReadInterceptionBodyFragment(String fieldName) {
return String.format(
"if ( $$_hibernate_getInterceptor() != null ) { " +
"this.%1$s = $$_hibernate_getInterceptor().readChar(this, \"%1$s\", this.%1$s); " +
"}",
fieldName
);
}
@Override
public String buildWriteInterceptionBodyFragment(String fieldName) {
return String.format(
"char localVar = $1;" +
"if ( $$_hibernate_getInterceptor() != null ) {" +
"localVar = $$_hibernate_getInterceptor().writeChar(this, \"%1$s\", this.%1$s, $1);" +
"}" +
"this.%1$s = localVar;",
fieldName
);
}
};
private static final AttributeTypeDescriptor SHORT_DESCRIPTOR = new AbstractAttributeTypeDescriptor() {
@Override
public String buildReadInterceptionBodyFragment(String fieldName) {
return String.format(
"if ( $$_hibernate_getInterceptor() != null ) { " +
"this.%1$s = $$_hibernate_getInterceptor().readShort(this, \"%1$s\", this.%1$s); " +
"}",
fieldName
);
}
@Override
public String buildWriteInterceptionBodyFragment(String fieldName) {
return String.format(
"short localVar = $1;" +
"if ( $$_hibernate_getInterceptor() != null ) {" +
"localVar = $$_hibernate_getInterceptor().writeShort(this, \"%1$s\", this.%1$s, $1);" +
"}" +
"this.%1$s = localVar;",
fieldName
);
}
};
private static final AttributeTypeDescriptor INT_DESCRIPTOR = new AbstractAttributeTypeDescriptor() {
@Override
public String buildReadInterceptionBodyFragment(String fieldName) {
return String.format(
"if ( $$_hibernate_getInterceptor() != null ) { " +
"this.%1$s = $$_hibernate_getInterceptor().readInt(this, \"%1$s\", this.%1$s); " +
"}",
fieldName
);
}
@Override
public String buildWriteInterceptionBodyFragment(String fieldName) {
return String.format(
"int localVar = $1;" +
"if ( $$_hibernate_getInterceptor() != null ) {" +
"localVar = $$_hibernate_getInterceptor().writeInt(this, \"%1$s\", this.%1$s, $1);" +
"}" +
"this.%1$s = localVar;",
fieldName
);
}
};
private static final AttributeTypeDescriptor LONG_DESCRIPTOR = new AbstractAttributeTypeDescriptor() {
@Override
public String buildReadInterceptionBodyFragment(String fieldName) {
return String.format(
"if ( $$_hibernate_getInterceptor() != null ) { " +
"this.%1$s = $$_hibernate_getInterceptor().readLong(this, \"%1$s\", this.%1$s); " +
"}",
fieldName
);
}
@Override
public String buildWriteInterceptionBodyFragment(String fieldName) {
return String.format(
"long localVar = $1;" +
"if ( $$_hibernate_getInterceptor() != null ) {" +
"localVar = $$_hibernate_getInterceptor().writeLong(this, \"%1$s\", this.%1$s, $1);" +
"}" +
"this.%1$s = localVar;",
fieldName
);
}
};
private static final AttributeTypeDescriptor DOUBLE_DESCRIPTOR = new AbstractAttributeTypeDescriptor() {
@Override
public String buildReadInterceptionBodyFragment(String fieldName) {
return String.format(
"if ( $$_hibernate_getInterceptor() != null ) { " +
"this.%1$s = $$_hibernate_getInterceptor().readDouble(this, \"%1$s\", this.%1$s); " +
"}",
fieldName
);
}
@Override
public String buildWriteInterceptionBodyFragment(String fieldName) {
return String.format(
"double localVar = $1;" +
"if ( $$_hibernate_getInterceptor() != null ) {" +
"localVar = $$_hibernate_getInterceptor().writeDouble(this, \"%1$s\", this.%1$s, $1);" +
"}" +
"this.%1$s = localVar;",
fieldName
);
}
};
private static final AttributeTypeDescriptor FLOAT_DESCRIPTOR = new AbstractAttributeTypeDescriptor() {
@Override
public String buildReadInterceptionBodyFragment(String fieldName) {
return String.format(
"if ( $$_hibernate_getInterceptor() != null ) { " +
"this.%1$s = $$_hibernate_getInterceptor().readFloat(this, \"%1$s\", this.%1$s); " +
"}",
fieldName
);
}
@Override
public String buildWriteInterceptionBodyFragment(String fieldName) {
return String.format(
"float localVar = $1;" +
"if ( $$_hibernate_getInterceptor() != null ) {" +
"localVar = $$_hibernate_getInterceptor().writeFloat(this, \"%1$s\", this.%1$s, $1);" +
"}" +
"this.%1$s = localVar;",
fieldName
);
}
};
}
