org.hibernate.tuple.component.PojoComponentTuplizer Maven / Gradle / Ivy

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//$Id: PojoComponentTuplizer.java 9619 2006-03-15 00:12:47Z [email protected] $
package org.hibernate.tuple.component;

import java.io.Serializable;
import java.lang.reflect.Method;

import org.hibernate.AssertionFailure;
import org.hibernate.HibernateException;
import org.hibernate.bytecode.BasicProxyFactory;
import org.hibernate.bytecode.ReflectionOptimizer;
import org.hibernate.cfg.Environment;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.mapping.Component;
import org.hibernate.mapping.Property;
import org.hibernate.property.BackrefPropertyAccessor;
import org.hibernate.property.Getter;
import org.hibernate.property.PropertyAccessor;
import org.hibernate.property.PropertyAccessorFactory;
import org.hibernate.property.Setter;
import org.hibernate.tuple.Instantiator;
import org.hibernate.tuple.PojoInstantiator;
import org.hibernate.util.ReflectHelper;

/**
 * A {@link ComponentTuplizer} specific to the pojo entity mode.
 *
 * @author Gavin King
 * @author Steve Ebersole
 */
public class PojoComponentTuplizer extends AbstractComponentTuplizer {

	private final Class componentClass;
	private ReflectionOptimizer optimizer;
	private final Getter parentGetter;
	private final Setter parentSetter;

	public PojoComponentTuplizer(Component component) {
		super( component );

		this.componentClass = component.getComponentClass();

		String[] getterNames = new String[propertySpan];
		String[] setterNames = new String[propertySpan];
		Class[] propTypes = new Class[propertySpan];
		for ( int i = 0; i < propertySpan; i++ ) {
			getterNames[i] = getters[i].getMethodName();
			setterNames[i] = setters[i].getMethodName();
			propTypes[i] = getters[i].getReturnType();
		}

		final String parentPropertyName = component.getParentProperty();
		if ( parentPropertyName == null ) {
			parentSetter = null;
			parentGetter = null;
		}
		else {
			PropertyAccessor pa = PropertyAccessorFactory.getPropertyAccessor( null );
			parentSetter = pa.getSetter( componentClass, parentPropertyName );
			parentGetter = pa.getGetter( componentClass, parentPropertyName );
		}

		if ( hasCustomAccessors || !Environment.useReflectionOptimizer() ) {
			optimizer = null;
		}
		else {
			// TODO: here is why we need to make bytecode provider global :(
			// TODO : again, fix this after HHH-1907 is complete
			optimizer = Environment.getBytecodeProvider().getReflectionOptimizer(
					componentClass, getterNames, setterNames, propTypes
			);
		}
	}

	public Class getMappedClass() {
		return componentClass;
	}

	public Object[] getPropertyValues(Object component) throws HibernateException {
		if ( component == BackrefPropertyAccessor.UNKNOWN ) {
			return new Object[ propertySpan ];
		}
		if ( optimizer != null && optimizer.getAccessOptimizer() != null ) {
			return optimizer.getAccessOptimizer().getPropertyValues( component );
		}
		else {
			return super.getPropertyValues(component);
		}
	}

	public void setPropertyValues(Object component, Object[] values) throws HibernateException {
		if ( optimizer != null && optimizer.getAccessOptimizer() != null ) {
				optimizer.getAccessOptimizer().setPropertyValues( component, values );
		}
		else {
			super.setPropertyValues(component, values);
		}

	}

	public Object getParent(Object component) {
		return parentGetter.get( component );
	}

	public boolean hasParentProperty() {
		return parentGetter!=null;
	}

	public boolean isMethodOf(Method method) {
		for ( int i=0; i