jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/resource/persistence/util/PersistenceSwitch.java

/**
 * <copyright>
 * </copyright>
 *
 * $Id: PersistenceSwitch.java,v 1.2 2007/08/21 16:19:36 kmoore Exp $
 */
package org.eclipse.jpt.core.internal.resource.persistence.util;

import java.util.List;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jpt.core.internal.resource.persistence.JavaClassRef;
import org.eclipse.jpt.core.internal.resource.persistence.MappingFileRef;
import org.eclipse.jpt.core.internal.resource.persistence.Persistence;
import org.eclipse.jpt.core.internal.resource.persistence.PersistencePackage;
import org.eclipse.jpt.core.internal.resource.persistence.PersistenceUnit;
import org.eclipse.jpt.core.internal.resource.persistence.Properties;
import org.eclipse.jpt.core.internal.resource.persistence.Property;

/**
 * <!-- begin-user-doc -->
 * The <b>Switch</b> for the model's inheritance hierarchy.
 * It supports the call {@link #doSwitch(EObject) doSwitch(object)}
 * to invoke the <code>caseXXX</code> method for each class of the model,
 * starting with the actual class of the object
 * and proceeding up the inheritance hierarchy
 * until a non-null result is returned,
 * which is the result of the switch.
 * <!-- end-user-doc -->
 * @see org.eclipse.jpt.core.internal.resource.persistence.PersistencePackage
 * @generated
 */
public class PersistenceSwitch<T>
{
	/**
	 * The cached model package
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected static PersistencePackage modelPackage;

	/**
	 * Creates an instance of the switch.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public PersistenceSwitch()
	{
		if (modelPackage == null)
		{
			modelPackage = PersistencePackage.eINSTANCE;
		}
	}

	/**
	 * Calls <code>caseXXX</code> for each class of the model until one returns a non null result; it yields that result.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the first non-null result returned by a <code>caseXXX</code> call.
	 * @generated
	 */
	public T doSwitch(EObject theEObject)
	{
		return doSwitch(theEObject.eClass(), theEObject);
	}

	/**
	 * Calls <code>caseXXX</code> for each class of the model until one returns a non null result; it yields that result.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the first non-null result returned by a <code>caseXXX</code> call.
	 * @generated
	 */
	protected T doSwitch(EClass theEClass, EObject theEObject)
	{
		if (theEClass.eContainer() == modelPackage)
		{
			return doSwitch(theEClass.getClassifierID(), theEObject);
		}
		else
		{
			List<EClass> eSuperTypes = theEClass.getESuperTypes();
			return
				eSuperTypes.isEmpty() ?
					defaultCase(theEObject) :
					doSwitch(eSuperTypes.get(0), theEObject);
		}
	}

	/**
	 * Calls <code>caseXXX</code> for each class of the model until one returns a non null result; it yields that result.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the first non-null result returned by a <code>caseXXX</code> call.
	 * @generated
	 */
	protected T doSwitch(int classifierID, EObject theEObject)
	{
		switch (classifierID)
		{
			case PersistencePackage.PERSISTENCE:
			{
				Persistence persistence = (Persistence)theEObject;
				T result = casePersistence(persistence);
				if (result == null) result = defaultCase(theEObject);
				return result;
			}
			case PersistencePackage.PERSISTENCE_UNIT:
			{
				PersistenceUnit persistenceUnit = (PersistenceUnit)theEObject;
				T result = casePersistenceUnit(persistenceUnit);
				if (result == null) result = defaultCase(theEObject);
				return result;
			}
			case PersistencePackage.MAPPING_FILE_REF:
			{
				MappingFileRef mappingFileRef = (MappingFileRef)theEObject;
				T result = caseMappingFileRef(mappingFileRef);
				if (result == null) result = defaultCase(theEObject);
				return result;
			}
			case PersistencePackage.JAVA_CLASS_REF:
			{
				JavaClassRef javaClassRef = (JavaClassRef)theEObject;
				T result = caseJavaClassRef(javaClassRef);
				if (result == null) result = defaultCase(theEObject);
				return result;
			}
			case PersistencePackage.PROPERTIES:
			{
				Properties properties = (Properties)theEObject;
				T result = caseProperties(properties);
				if (result == null) result = defaultCase(theEObject);
				return result;
			}
			case PersistencePackage.PROPERTY:
			{
				Property property = (Property)theEObject;
				T result = caseProperty(property);
				if (result == null) result = defaultCase(theEObject);
				return result;
			}
			default: return defaultCase(theEObject);
		}
	}

	/**
	 * Returns the result of interpreting the object as an instance of '<em>Persistence</em>'.
	 * <!-- begin-user-doc -->
	 * This implementation returns null;
	 * returning a non-null result will terminate the switch.
	 * <!-- end-user-doc -->
	 * @param object the target of the switch.
	 * @return the result of interpreting the object as an instance of '<em>Persistence</em>'.
	 * @see #doSwitch(org.eclipse.emf.ecore.EObject) doSwitch(EObject)
	 * @generated
	 */
	public T casePersistence(Persistence object)
	{
		return null;
	}

	/**
	 * Returns the result of interpreting the object as an instance of '<em>Unit</em>'.
	 * <!-- begin-user-doc -->
	 * This implementation returns null;
	 * returning a non-null result will terminate the switch.
	 * <!-- end-user-doc -->
	 * @param object the target of the switch.
	 * @return the result of interpreting the object as an instance of '<em>Unit</em>'.
	 * @see #doSwitch(org.eclipse.emf.ecore.EObject) doSwitch(EObject)
	 * @generated
	 */
	public T casePersistenceUnit(PersistenceUnit object)
	{
		return null;
	}

	/**
	 * Returns the result of interpreting the object as an instance of '<em>Mapping File Ref</em>'.
	 * <!-- begin-user-doc -->
	 * This implementation returns null;
	 * returning a non-null result will terminate the switch.
	 * <!-- end-user-doc -->
	 * @param object the target of the switch.
	 * @return the result of interpreting the object as an instance of '<em>Mapping File Ref</em>'.
	 * @see #doSwitch(org.eclipse.emf.ecore.EObject) doSwitch(EObject)
	 * @generated
	 */
	public T caseMappingFileRef(MappingFileRef object)
	{
		return null;
	}

	/**
	 * Returns the result of interpreting the object as an instance of '<em>Java Class Ref</em>'.
	 * <!-- begin-user-doc -->
	 * This implementation returns null;
	 * returning a non-null result will terminate the switch.
	 * <!-- end-user-doc -->
	 * @param object the target of the switch.
	 * @return the result of interpreting the object as an instance of '<em>Java Class Ref</em>'.
	 * @see #doSwitch(org.eclipse.emf.ecore.EObject) doSwitch(EObject)
	 * @generated
	 */
	public T caseJavaClassRef(JavaClassRef object)
	{
		return null;
	}

	/**
	 * Returns the result of interpreting the object as an instance of '<em>Properties</em>'.
	 * <!-- begin-user-doc -->
	 * This implementation returns null;
	 * returning a non-null result will terminate the switch.
	 * <!-- end-user-doc -->
	 * @param object the target of the switch.
	 * @return the result of interpreting the object as an instance of '<em>Properties</em>'.
	 * @see #doSwitch(org.eclipse.emf.ecore.EObject) doSwitch(EObject)
	 * @generated
	 */
	public T caseProperties(Properties object)
	{
		return null;
	}

	/**
	 * Returns the result of interpreting the object as an instance of '<em>Property</em>'.
	 * <!-- begin-user-doc -->
	 * This implementation returns null;
	 * returning a non-null result will terminate the switch.
	 * <!-- end-user-doc -->
	 * @param object the target of the switch.
	 * @return the result of interpreting the object as an instance of '<em>Property</em>'.
	 * @see #doSwitch(org.eclipse.emf.ecore.EObject) doSwitch(EObject)
	 * @generated
	 */
	public T caseProperty(Property object)
	{
		return null;
	}

	/**
	 * Returns the result of interpreting the object as an instance of '<em>EObject</em>'.
	 * <!-- begin-user-doc -->
	 * This implementation returns null;
	 * returning a non-null result will terminate the switch, but this is the last case anyway.
	 * <!-- end-user-doc -->
	 * @param object the target of the switch.
	 * @return the result of interpreting the object as an instance of '<em>EObject</em>'.
	 * @see #doSwitch(org.eclipse.emf.ecore.EObject)
	 * @generated
	 */
	public T defaultCase(EObject object)
	{
		return null;
	}

} //PersistenceSwitch