groovy/modules/grails/src/persistence/org/codehaus/groovy/grails/metaclass/DomainClassMethods.java

/*
 * Copyright 2004-2005 the original author or authors.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */ 
package org.codehaus.groovy.grails.metaclass;

import org.codehaus.groovy.grails.commons.GrailsApplication;
import org.codehaus.groovy.grails.commons.metaclass.AbstractDynamicMethods;
import org.codehaus.groovy.grails.commons.metaclass.WeakGenericDynamicProperty;
import org.codehaus.groovy.grails.commons.metaclass.AbstractDynamicMethodInvocation;
import org.codehaus.groovy.grails.orm.hibernate.metaclass.*;
import org.codehaus.groovy.grails.validation.metaclass.ConstraintsDynamicProperty;
import org.hibernate.SessionFactory;
import org.springframework.validation.Errors;

import java.beans.IntrospectionException;

/**
 * 
 * 
 * @author Steven Devijver
 * @since Aug 7, 2005
 */
public class DomainClassMethods extends AbstractDynamicMethods {

	public static final String HAS_ERRORS_PROPERTY = "hasErrors";
	public static final String ERRORS_PROPERTY = "errors";

	public DomainClassMethods(GrailsApplication application, Class theClass, SessionFactory sessionFactory, ClassLoader classLoader)
			throws IntrospectionException {
		super(theClass);
		// dynamic methods
		addDynamicMethodInvocation(new SavePersistentMethod(sessionFactory, classLoader,application));
		addDynamicMethodInvocation(new DeletePersistentMethod(sessionFactory, classLoader));
		addDynamicMethodInvocation(new RefreshPersistentMethod(sessionFactory, classLoader));		
		addDynamicMethodInvocation(new ValidatePersistentMethod(sessionFactory, classLoader, application ));
        addDynamicMethodInvocation(new AbstractDynamicMethodInvocation(HAS_ERRORS_PROPERTY) {
            public Object invoke(Object target, Object[] arguments) {
                Errors errors = (Errors)getDynamicProperty(ERRORS_PROPERTY).get(target);
                if(errors == null || !errors.hasErrors()) {
                    return new Boolean(false);
                }
                else {
                    return new Boolean(true);
                }
            }
        });

        // static methods
		addStaticMethodInvocation(new FindAllPersistentMethod(sessionFactory, classLoader));
		addStaticMethodInvocation(new FindAllByPersistentMethod(application,sessionFactory, classLoader));
		addStaticMethodInvocation(new FindByPersistentMethod(application,sessionFactory, classLoader));
		addStaticMethodInvocation(new FindPersistentMethod(sessionFactory, classLoader));
		addStaticMethodInvocation(new ListOrderByPersistentMethod(sessionFactory, classLoader));
		addStaticMethodInvocation(new ListPersistentMethod(sessionFactory, classLoader));
		addStaticMethodInvocation(new FindWherePersistentMethod(sessionFactory, classLoader));
		addStaticMethodInvocation(new GetPersistentMethod(application,sessionFactory, classLoader));
        addStaticMethodInvocation(new ExistsPersistentMethod(application,sessionFactory, classLoader));
        addStaticMethodInvocation(new CountPersistentMethod(sessionFactory, classLoader));
        addStaticMethodInvocation(new CreateCriteriaPersistentMethod(sessionFactory, classLoader));
		
		// add dynamic properties
		addDynamicProperty( new SetPropertiesDynamicProperty() );
		addDynamicProperty( new ConstraintsDynamicProperty() );		
		addDynamicProperty( new WeakGenericDynamicProperty(ERRORS_PROPERTY, Errors.class,null,false) );
		
	}
	
}