/***********************************************************************
 * Copyright (c) 2004 Actuate Corporation.
 * 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:
 * Actuate Corporation - initial API and implementation
 ***********************************************************************/

package org.eclipse.birt.chart.model.data.impl;

import org.eclipse.birt.chart.model.attribute.RuleType;
import org.eclipse.birt.chart.model.data.DataFactory;
import org.eclipse.birt.chart.model.data.DataPackage;
import org.eclipse.birt.chart.model.data.Rule;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.impl.EObjectImpl;

/**
 * <!-- begin-user-doc --> An implementation of the model object '
 * <em><b>Rule</b></em>'. <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.birt.chart.model.data.impl.RuleImpl#getType <em>Type</em>}</li>
 *   <li>{@link org.eclipse.birt.chart.model.data.impl.RuleImpl#getValue <em>Value</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class RuleImpl extends EObjectImpl implements Rule
{

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

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

	/**
	 * This is true if the Type attribute has been set.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	protected boolean typeESet = false;

	/**
	 * 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;

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

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

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public RuleType getType( )
	{
		return type;
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public void setType( RuleType newType )
	{
		RuleType oldType = type;
		type = newType == null ? TYPE_EDEFAULT : newType;
		boolean oldTypeESet = typeESet;
		typeESet = true;
		if ( eNotificationRequired( ) )
			eNotify( new ENotificationImpl( this,
					Notification.SET,
					DataPackage.RULE__TYPE,
					oldType,
					type,
					!oldTypeESet ) );
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public void unsetType( )
	{
		RuleType oldType = type;
		boolean oldTypeESet = typeESet;
		type = TYPE_EDEFAULT;
		typeESet = false;
		if ( eNotificationRequired( ) )
			eNotify( new ENotificationImpl( this,
					Notification.UNSET,
					DataPackage.RULE__TYPE,
					oldType,
					TYPE_EDEFAULT,
					oldTypeESet ) );
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isSetType( )
	{
		return typeESet;
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public String getValue( )
	{
		return value;
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public void setValue( String newValue )
	{
		String oldValue = value;
		value = newValue;
		if ( eNotificationRequired( ) )
			eNotify( new ENotificationImpl( this,
					Notification.SET,
					DataPackage.RULE__VALUE,
					oldValue,
					value ) );
	}

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eSet( int featureID, Object newValue )
	{
		switch ( featureID )
		{
			case DataPackage.RULE__TYPE :
				setType( (RuleType) newValue );
				return;
			case DataPackage.RULE__VALUE :
				setValue( (String) newValue );
				return;
		}
		super.eSet( featureID, newValue );
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eUnset( int featureID )
	{
		switch ( featureID )
		{
			case DataPackage.RULE__TYPE :
				unsetType( );
				return;
			case DataPackage.RULE__VALUE :
				setValue( VALUE_EDEFAULT );
				return;
		}
		super.eUnset( featureID );
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean eIsSet( int featureID )
	{
		switch ( featureID )
		{
			case DataPackage.RULE__TYPE :
				return isSetType( );
			case DataPackage.RULE__VALUE :
				return VALUE_EDEFAULT == null ? value != null
						: !VALUE_EDEFAULT.equals( value );
		}
		return super.eIsSet( featureID );
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public String toString( )
	{
		if ( eIsProxy( ) )
			return super.toString( );

		StringBuffer result = new StringBuffer( super.toString( ) );
		result.append( " (type: " ); //$NON-NLS-1$
		if ( typeESet )
			result.append( type );
		else
			result.append( "<unset>" ); //$NON-NLS-1$
		result.append( ", value: " ); //$NON-NLS-1$
		result.append( value );
		result.append( ')' );
		return result.toString( );
	}

	/**
	 * A convenience method provided to create a new initialized rule instance
	 * 
	 * @param rt
	 * @param sValue
	 * @return
	 */
	public static final Rule create( RuleType rt, String sValue )
	{
		final Rule r = DataFactory.eINSTANCE.createRule( );
		r.setType( rt );
		r.setValue( sValue );
		return r;
	}

} //RuleImpl
