/*******************************************************************************
 * Copyright (c) 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.orm;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.jpt.core.internal.XmlEObject;
import org.eclipse.jpt.core.internal.mappings.IOrderBy;
import org.eclipse.jpt.core.internal.mappings.JpaCoreMappingsPackage;
import org.eclipse.jpt.core.internal.mappings.OrderingType;
import org.eclipse.jpt.core.internal.platform.DefaultsContext;

/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Xml Order By</b></em>'.
 * <!-- end-user-doc -->
 *
 *
 * @see org.eclipse.jpt.core.internal.content.orm.OrmPackage#getXmlOrderBy()
 * @model kind="class"
 * @generated
 */
public class XmlOrderBy extends XmlEObject implements IOrderBy
{
	/**
	 * The default value of the '{@link #getValue() <em>Value</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getValue()
	 * @generated
	 * @ordered
	 */
	protected static final String VALUE_EDEFAULT = null;

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

	/**
	 * The default value of the '{@link #getType() <em>Type</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getType()
	 * @generated
	 * @ordered
	 */
	protected static final OrderingType TYPE_EDEFAULT = OrderingType.NONE;

	/**
	 * The cached value of the '{@link #getType() <em>Type</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getType()
	 * @generated
	 * @ordered
	 */
	protected OrderingType type = TYPE_EDEFAULT;

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected XmlOrderBy() {
		super();
	}

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

	/**
	 * Returns the value of the '<em><b>Value</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Value</em>' attribute isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Value</em>' attribute.
	 * @see #setValue(String)
	 * @see org.eclipse.jpt.core.internal.content.orm.OrmPackage#getIOrderBy_Value()
	 * @model
	 * @generated
	 */
	public String getValue() {
		return value;
	}

	/**
	 * Sets the value of the '{@link org.eclipse.jpt.core.internal.content.orm.XmlOrderBy#getValue <em>Value</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Value</em>' attribute.
	 * @see #getValue()
	 * @generated
	 */
	public void setValueGen(String newValue) {
		String oldValue = value;
		value = newValue;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, OrmPackage.XML_ORDER_BY__VALUE, oldValue, value));
	}

	public void setValue(String newValue) {
		setValueGen(newValue);
		if (newValue == null) {
			setTypeGen(OrderingType.NONE);
		}
		else {
			setTypeGen(OrderingType.CUSTOM);
		}
	}

	/**
	 * Returns the value of the '<em><b>Type</b></em>' attribute.
	 * The literals are from the enumeration {@link org.eclipse.jpt.core.internal.mappings.OrderingType}.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Type</em>' attribute isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Type</em>' attribute.
	 * @see org.eclipse.jpt.core.internal.mappings.OrderingType
	 * @see #setType(OrderingType)
	 * @see org.eclipse.jpt.core.internal.content.orm.OrmPackage#getIOrderBy_Type()
	 * @model
	 * @generated
	 */
	public OrderingType getType() {
		return type;
	}

	/**
	 * Sets the value of the '{@link org.eclipse.jpt.core.internal.content.orm.XmlOrderBy#getType <em>Type</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Type</em>' attribute.
	 * @see org.eclipse.jpt.core.internal.mappings.OrderingType
	 * @see #getType()
	 * @generated
	 */
	public void setTypeGen(OrderingType newType) {
		OrderingType oldType = type;
		type = newType == null ? TYPE_EDEFAULT : newType;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, OrmPackage.XML_ORDER_BY__TYPE, oldType, type));
	}

	public void setType(OrderingType newType) {
		setTypeGen(newType);
		if (newType == OrderingType.NONE) {
			multiRelationshipMapping().makeOrderByForXmlNull();
		}
		else {
			if (newType == OrderingType.CUSTOM) {
				setValueGen("");
			}
			else {
				setValueGen(null);
			}
			multiRelationshipMapping().makeOrderByForXmlNonNull();
		}
	}

	private XmlMultiRelationshipMappingInternal multiRelationshipMapping() {
		return (XmlMultiRelationshipMappingInternal) eContainer();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case OrmPackage.XML_ORDER_BY__VALUE :
				return getValue();
			case OrmPackage.XML_ORDER_BY__TYPE :
				return getType();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case OrmPackage.XML_ORDER_BY__VALUE :
				setValue((String) newValue);
				return;
			case OrmPackage.XML_ORDER_BY__TYPE :
				setType((OrderingType) newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case OrmPackage.XML_ORDER_BY__VALUE :
				setValue(VALUE_EDEFAULT);
				return;
			case OrmPackage.XML_ORDER_BY__TYPE :
				setType(TYPE_EDEFAULT);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case OrmPackage.XML_ORDER_BY__VALUE :
				return VALUE_EDEFAULT == null ? value != null : !VALUE_EDEFAULT.equals(value);
			case OrmPackage.XML_ORDER_BY__TYPE :
				return type != TYPE_EDEFAULT;
		}
		return super.eIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public int eBaseStructuralFeatureID(int derivedFeatureID, Class<?> baseClass) {
		if (baseClass == IOrderBy.class) {
			switch (derivedFeatureID) {
				case OrmPackage.XML_ORDER_BY__VALUE :
					return JpaCoreMappingsPackage.IORDER_BY__VALUE;
				case OrmPackage.XML_ORDER_BY__TYPE :
					return JpaCoreMappingsPackage.IORDER_BY__TYPE;
				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 == IOrderBy.class) {
			switch (baseFeatureID) {
				case JpaCoreMappingsPackage.IORDER_BY__VALUE :
					return OrmPackage.XML_ORDER_BY__VALUE;
				case JpaCoreMappingsPackage.IORDER_BY__TYPE :
					return OrmPackage.XML_ORDER_BY__TYPE;
				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(" (value: ");
		result.append(value);
		result.append(", type: ");
		result.append(type);
		result.append(')');
		return result.toString();
	}

	//	private IMultiRelationshipMapping multiRelationshipMapping() {
	//		return (IMultiRelationshipMapping) eContainer();
	//	}
	//
	public void refreshDefaults(DefaultsContext defaultsContext) {
	//		IEntity targetEntity = multiRelationshipMapping().getResolvedTargetEntity();
	//		if (targetEntity != null) {
	//			setValue(targetEntity.primaryKeyAttributeName() + " ASC");
	//		}
	}
} // XmlOrderBy