/*******************************************************************************
 * Copyright (c) 2006, 2007 Oracle. All rights reserved.
 * This program and the accompanying materials are made available under the terms of
 * the Eclipse Public License v1.0, which accompanies this distribution and is available at
 * http://www.eclipse.org/legal/epl-v10.html.
 * 
 * Contributors:
 *     Oracle - initial API and implementation
 ******************************************************************************/
package org.eclipse.jpt.core.internal.content.java.mappings;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.core.internal.ITextRange;
import org.eclipse.jpt.core.internal.ITypeMapping;
import org.eclipse.jpt.core.internal.jdtutility.AnnotationElementAdapter;
import org.eclipse.jpt.core.internal.jdtutility.Attribute;
import org.eclipse.jpt.core.internal.jdtutility.DeclarationAnnotationElementAdapter;
import org.eclipse.jpt.core.internal.mappings.DefaultLazyFetchType;
import org.eclipse.jpt.core.internal.mappings.IJoinTable;
import org.eclipse.jpt.core.internal.mappings.IMultiRelationshipMapping;
import org.eclipse.jpt.core.internal.mappings.INonOwningMapping;
import org.eclipse.jpt.core.internal.mappings.IOrderBy;
import org.eclipse.jpt.core.internal.mappings.ITable;
import org.eclipse.jpt.core.internal.mappings.JpaCoreMappingsPackage;

/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Java Multi Relationship Mapping</b></em>'.
 * <!-- end-user-doc -->
 *
 *
 * @see org.eclipse.jpt.core.internal.content.java.mappings.JpaJavaMappingsPackage#getJavaMultiRelationshipMapping()
 * @model kind="class" abstract="true"
 * @generated
 */
public abstract class JavaMultiRelationshipMapping
	extends JavaRelationshipMapping implements IMultiRelationshipMapping
{
	/**
	 * The default value of the '{@link #getMappedBy() <em>Mapped By</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getMappedBy()
	 * @generated
	 * @ordered
	 */
	protected static final String MAPPED_BY_EDEFAULT = null;

	/**
	 * The cached value of the '{@link #getMappedBy() <em>Mapped By</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getMappedBy()
	 * @generated
	 * @ordered
	 */
	protected String mappedBy = MAPPED_BY_EDEFAULT;

	private final AnnotationElementAdapter mappedByAdapter;

	/**
	 * The default value of the '{@link #getFetch() <em>Fetch</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getFetch()
	 * @generated
	 * @ordered
	 */
	protected static final DefaultLazyFetchType FETCH_EDEFAULT = DefaultLazyFetchType.DEFAULT;

	/**
	 * The cached value of the '{@link #getFetch() <em>Fetch</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getFetch()
	 * @generated
	 * @ordered
	 */
	protected DefaultLazyFetchType fetch = FETCH_EDEFAULT;

	/**
	 * The cached value of the '{@link #getJoinTable() <em>Join Table</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getJoinTable()
	 * @generated
	 * @ordered
	 */
	protected IJoinTable joinTable;

	/**
	 * The cached value of the '{@link #getOrderBy() <em>Order By</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getOrderBy()
	 * @generated
	 * @ordered
	 */
	protected IOrderBy orderBy;

	protected JavaMultiRelationshipMapping() {
		throw new UnsupportedOperationException("Use JavaMultiRelationshipMapping(Attribute) instead");
	}

	protected JavaMultiRelationshipMapping(Attribute attribute) {
		super(attribute);
		this.mappedByAdapter = this.buildAnnotationElementAdapter(this.mappedByAdapter());
		this.joinTable = JpaJavaMappingsFactory.eINSTANCE.createJavaJoinTable(buildOwner(), attribute);
		((InternalEObject) this.joinTable).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__JOIN_TABLE, null, null);
		this.orderBy = JpaJavaMappingsFactory.eINSTANCE.createJavaOrderBy(attribute);
		((InternalEObject) this.orderBy).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__ORDER_BY, null, null);
	}

	@Override
	protected void notifyChanged(Notification notification) {
		super.notifyChanged(notification);
		switch (notification.getFeatureID(IMultiRelationshipMapping.class)) {
			case JpaCoreMappingsPackage.IMULTI_RELATIONSHIP_MAPPING__FETCH :
				this.getFetchAdapter().setValue(((DefaultLazyFetchType) notification.getNewValue()).convertToJavaAnnotationValue());
				break;
			default :
				break;
		}
		switch (notification.getFeatureID(INonOwningMapping.class)) {
			case JpaCoreMappingsPackage.INON_OWNING_MAPPING__MAPPED_BY :
				this.mappedByAdapter.setValue(notification.getNewValue());
				break;
			default :
				break;
		}
	}

	private ITable.Owner buildOwner() {
		return new ITable.Owner() {
			public ITextRange getTextRange() {
				return JavaMultiRelationshipMapping.this.getTextRange();
			}

			public ITypeMapping getTypeMapping() {
				return JavaMultiRelationshipMapping.this.typeMapping();
			}
		};
	}

	/**
	 * return the Java adapter's 'mappedBy' element adapter config
	 */
	protected abstract DeclarationAnnotationElementAdapter mappedByAdapter();

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return JpaJavaMappingsPackage.Literals.JAVA_MULTI_RELATIONSHIP_MAPPING;
	}

	/**
	 * Returns the value of the '<em><b>Mapped By</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Mapped By</em>' attribute isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Mapped By</em>' attribute.
	 * @see #setMappedBy(String)
	 * @see org.eclipse.jpt.core.internal.content.java.mappings.JpaJavaMappingsPackage#getINonOwningMapping_MappedBy()
	 * @model
	 * @generated
	 */
	public String getMappedBy() {
		return mappedBy;
	}

	/**
	 * Sets the value of the '{@link org.eclipse.jpt.core.internal.content.java.mappings.JavaMultiRelationshipMapping#getMappedBy <em>Mapped By</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Mapped By</em>' attribute.
	 * @see #getMappedBy()
	 * @generated
	 */
	public void setMappedBy(String newMappedBy) {
		String oldMappedBy = mappedBy;
		mappedBy = newMappedBy;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__MAPPED_BY, oldMappedBy, mappedBy));
	}

	/**
	 * Returns the value of the '<em><b>Fetch</b></em>' attribute.
	 * The literals are from the enumeration {@link org.eclipse.jpt.core.internal.mappings.DefaultLazyFetchType}.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Fetch</em>' attribute isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Fetch</em>' attribute.
	 * @see org.eclipse.jpt.core.internal.mappings.DefaultLazyFetchType
	 * @see #setFetch(DefaultLazyFetchType)
	 * @see org.eclipse.jpt.core.internal.content.java.mappings.JpaJavaMappingsPackage#getIMultiRelationshipMapping_Fetch()
	 * @model
	 * @generated
	 */
	public DefaultLazyFetchType getFetch() {
		return fetch;
	}

	/**
	 * Sets the value of the '{@link org.eclipse.jpt.core.internal.content.java.mappings.JavaMultiRelationshipMapping#getFetch <em>Fetch</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Fetch</em>' attribute.
	 * @see org.eclipse.jpt.core.internal.mappings.DefaultLazyFetchType
	 * @see #getFetch()
	 * @generated
	 */
	public void setFetch(DefaultLazyFetchType newFetch) {
		DefaultLazyFetchType oldFetch = fetch;
		fetch = newFetch == null ? FETCH_EDEFAULT : newFetch;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__FETCH, oldFetch, fetch));
	}

	/**
	 * Returns the value of the '<em><b>Join Table</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Join Table</em>' containment reference isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Join Table</em>' containment reference.
	 * @see org.eclipse.jpt.core.internal.content.java.mappings.JpaJavaMappingsPackage#getIMultiRelationshipMapping_JoinTable()
	 * @model containment="true" required="true" changeable="false"
	 * @generated
	 */
	public IJoinTable getJoinTable() {
		return joinTable;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetJoinTable(IJoinTable newJoinTable, NotificationChain msgs) {
		IJoinTable oldJoinTable = joinTable;
		joinTable = newJoinTable;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__JOIN_TABLE, oldJoinTable, newJoinTable);
			if (msgs == null)
				msgs = notification;
			else
				msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * Returns the value of the '<em><b>Order By</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Order By</em>' reference isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Order By</em>' containment reference.
	 * @see org.eclipse.jpt.core.internal.content.java.mappings.JpaJavaMappingsPackage#getIMultiRelationshipMapping_OrderBy()
	 * @model containment="true" required="true" changeable="false"
	 * @generated
	 */
	public IOrderBy getOrderBy() {
		return orderBy;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetOrderBy(IOrderBy newOrderBy, NotificationChain msgs) {
		IOrderBy oldOrderBy = orderBy;
		orderBy = newOrderBy;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__ORDER_BY, oldOrderBy, newOrderBy);
			if (msgs == null)
				msgs = notification;
			else
				msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__JOIN_TABLE :
				return basicSetJoinTable(null, msgs);
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__ORDER_BY :
				return basicSetOrderBy(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__MAPPED_BY :
				return getMappedBy();
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__FETCH :
				return getFetch();
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__JOIN_TABLE :
				return getJoinTable();
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__ORDER_BY :
				return getOrderBy();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__MAPPED_BY :
				setMappedBy((String) newValue);
				return;
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__FETCH :
				setFetch((DefaultLazyFetchType) newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__MAPPED_BY :
				setMappedBy(MAPPED_BY_EDEFAULT);
				return;
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__FETCH :
				setFetch(FETCH_EDEFAULT);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__MAPPED_BY :
				return MAPPED_BY_EDEFAULT == null ? mappedBy != null : !MAPPED_BY_EDEFAULT.equals(mappedBy);
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__FETCH :
				return fetch != FETCH_EDEFAULT;
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__JOIN_TABLE :
				return joinTable != null;
			case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__ORDER_BY :
				return orderBy != null;
		}
		return super.eIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public int eBaseStructuralFeatureID(int derivedFeatureID, Class<?> baseClass) {
		if (baseClass == INonOwningMapping.class) {
			switch (derivedFeatureID) {
				case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__MAPPED_BY :
					return JpaCoreMappingsPackage.INON_OWNING_MAPPING__MAPPED_BY;
				default :
					return -1;
			}
		}
		if (baseClass == IMultiRelationshipMapping.class) {
			switch (derivedFeatureID) {
				case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__FETCH :
					return JpaCoreMappingsPackage.IMULTI_RELATIONSHIP_MAPPING__FETCH;
				case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__JOIN_TABLE :
					return JpaCoreMappingsPackage.IMULTI_RELATIONSHIP_MAPPING__JOIN_TABLE;
				case JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__ORDER_BY :
					return JpaCoreMappingsPackage.IMULTI_RELATIONSHIP_MAPPING__ORDER_BY;
				default :
					return -1;
			}
		}
		return super.eBaseStructuralFeatureID(derivedFeatureID, baseClass);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public int eDerivedStructuralFeatureID(int baseFeatureID, Class<?> baseClass) {
		if (baseClass == INonOwningMapping.class) {
			switch (baseFeatureID) {
				case JpaCoreMappingsPackage.INON_OWNING_MAPPING__MAPPED_BY :
					return JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__MAPPED_BY;
				default :
					return -1;
			}
		}
		if (baseClass == IMultiRelationshipMapping.class) {
			switch (baseFeatureID) {
				case JpaCoreMappingsPackage.IMULTI_RELATIONSHIP_MAPPING__FETCH :
					return JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__FETCH;
				case JpaCoreMappingsPackage.IMULTI_RELATIONSHIP_MAPPING__JOIN_TABLE :
					return JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__JOIN_TABLE;
				case JpaCoreMappingsPackage.IMULTI_RELATIONSHIP_MAPPING__ORDER_BY :
					return JpaJavaMappingsPackage.JAVA_MULTI_RELATIONSHIP_MAPPING__ORDER_BY;
				default :
					return -1;
			}
		}
		return super.eDerivedStructuralFeatureID(baseFeatureID, baseClass);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public String toString() {
		if (eIsProxy())
			return super.toString();
		StringBuffer result = new StringBuffer(super.toString());
		result.append(" (mappedBy: ");
		result.append(mappedBy);
		result.append(", fetch: ");
		result.append(fetch);
		result.append(')');
		return result.toString();
	}

	@Override
	public void updateFromJava(CompilationUnit astRoot) {
		super.updateFromJava(astRoot);
		setMappedBy((String) this.mappedByAdapter.getValue(astRoot));
		((JavaOrderBy) this.orderBy).updateFromJava(astRoot);
		((JavaJoinTable) getJoinTable()).updateFromJava(astRoot);
	}

	@Override
	protected void updateFetchFromJava(CompilationUnit astRoot) {
		setFetch(DefaultLazyFetchType.fromJavaAnnotationValue(this.getFetchAdapter().getValue(astRoot)));
	}

	/**
	 * extract the element type from the specified container signature and
	 * convert it into a reference entity type name;
	 * return null if the type is not a valid reference entity type (e.g. it's
	 * another container or an array or a primitive or other Basic type)
	 */
	@Override
	protected String javaDefaultTargetEntity(String signature) {
		String typeName = super.javaDefaultTargetEntity(signature);
		return typeNamedIsContainer(typeName) ? this.javaDefaultTargetEntityFromContainer(signature) : null;
	}

	protected String javaDefaultTargetEntityFromContainer(String signature) {
		String[] parmSignatures = Signature.getTypeArguments(signature);
		if ((parmSignatures == null) || (parmSignatures.length != 1)) {
			return null;
		}
		String elementSignature = parmSignatures[0];
		String elementTypeName = buildReferenceEntityTypeName(elementSignature, jdtType());
		return typeNamedIsContainer(elementTypeName) ? null : elementTypeName;
	}
} // JavaMultiRelationshipMapping