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org.hibernate.property.access.spi.EnhancedSetterImpl 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.property.access.spi;
import java.io.ObjectStreamException;
import java.io.Serializable;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.hibernate.PropertyAccessException;
import org.hibernate.PropertySetterAccessException;
import org.hibernate.engine.spi.SelfDirtinessTracker;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.internal.CoreMessageLogger;
import static org.hibernate.internal.CoreLogging.messageLogger;
/**
* A specialized Setter implementation for handling setting values into
* a into a bytecode-enhanced Class. The reason we need specialized handling
* is to render the fact that the
*
* @author Steve Ebersole
* @author Luis Barreiro
*/
public class EnhancedSetterImpl implements Setter {
private static final CoreMessageLogger LOG = messageLogger( EnhancedSetterImpl.class );
private final Class containerClass;
private final String propertyName;
private final Method setterMethod;
private final boolean isPrimitive;
public EnhancedSetterImpl(Class containerClass, String propertyName, Method setterMethod) {
this.containerClass = containerClass;
this.propertyName = propertyName;
this.setterMethod = setterMethod;
this.isPrimitive = setterMethod.getParameterTypes()[0].isPrimitive();
}
@Override
public void set(Object target, Object value, SessionFactoryImplementor factory) {
try {
// for enhanced attribute, don't flag as dirty
if ( target instanceof SelfDirtinessTracker ) {
( (SelfDirtinessTracker) target ).$$_hibernate_suspendDirtyTracking( true );
try {
setterMethod.invoke( target, value );
}
finally {
( (SelfDirtinessTracker) target ).$$_hibernate_suspendDirtyTracking( false );
}
}
else {
setterMethod.invoke( target, value );
}
}
catch (NullPointerException npe) {
if ( value == null && isPrimitive ) {
throw new PropertyAccessException(
npe,
"Null value was assigned to a property of primitive type",
true,
containerClass,
propertyName
);
}
else {
throw new PropertyAccessException(
npe,
"NullPointerException occurred while calling",
true,
containerClass,
propertyName
);
}
}
catch (InvocationTargetException ite) {
throw new PropertyAccessException(
ite,
"Exception occurred inside",
true,
containerClass,
propertyName
);
}
catch (IllegalAccessException iae) {
throw new PropertyAccessException(
iae,
"IllegalAccessException occurred while calling",
true,
containerClass,
propertyName
);
//cannot occur
}
catch (IllegalArgumentException iae) {
if ( value == null && isPrimitive ) {
throw new PropertyAccessException(
iae,
"Null value was assigned to a property of primitive type",
true,
containerClass,
propertyName
);
}
else {
final Class expectedType = setterMethod.getParameterTypes()[0];
LOG.illegalPropertySetterArgument( containerClass.getName(), propertyName );
LOG.expectedType( expectedType.getName(), value == null ? null : value.getClass().getName() );
throw new PropertySetterAccessException(
iae,
containerClass,
propertyName,
expectedType,
target,
value
);
}
}
}
@Override
public String getMethodName() {
return setterMethod.getName();
}
@Override
public Method getMethod() {
return setterMethod;
}
private Object writeReplace() throws ObjectStreamException {
return new SerialForm( containerClass, propertyName, setterMethod );
}
private static class SerialForm implements Serializable {
private final Class containerClass;
private final String propertyName;
private final Class declaringClass;
private final String methodName;
private final Class argumentType;
private SerialForm(Class containerClass, String propertyName, Method method) {
this.containerClass = containerClass;
this.propertyName = propertyName;
this.declaringClass = method.getDeclaringClass();
this.methodName = method.getName();
this.argumentType = method.getParameterTypes()[0];
}
private Object readResolve() {
return new EnhancedSetterImpl( containerClass, propertyName, resolveMethod() );
}
@SuppressWarnings("unchecked")
private Method resolveMethod() {
try {
return declaringClass.getDeclaredMethod( methodName, argumentType );
}
catch (NoSuchMethodException e) {
throw new PropertyAccessSerializationException(
"Unable to resolve setter method on deserialization : " + declaringClass.getName() + "#"
+ methodName + "(" + argumentType.getName() + ")"
);
}
}
}
}