/**
 * <copyright>
 * </copyright>
 *
 * $Id: Persistence.java,v 1.1 2007/07/30 20:13:46 pfullbright Exp $
 */
package org.eclipse.jpt.core.internal.resource.persistence;

import java.util.Collection;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;

import org.eclipse.emf.common.util.EList;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.InternalEObject;

import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.impl.EObjectImpl;

import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.InternalEList;

/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Persistence</b></em>'.
 * <!-- end-user-doc -->
 *
 * <p>
 * The following features are supported:
 * <ul>
 *   <li>{@link org.eclipse.jpt.core.internal.resource.persistence.Persistence#getPersistenceUnits <em>Persistence Units</em>}</li>
 *   <li>{@link org.eclipse.jpt.core.internal.resource.persistence.Persistence#getVersion <em>Version</em>}</li>
 * </ul>
 * </p>
 *
 * @see org.eclipse.jpt.core.internal.resource.persistence.PersistencePackage#getPersistence()
 * @model kind="class"
 * @generated
 */
public class Persistence extends EObjectImpl implements EObject
{
	/**
	 * The cached value of the '{@link #getPersistenceUnits() <em>Persistence Units</em>}' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getPersistenceUnits()
	 * @generated
	 * @ordered
	 */
	protected EList<PersistenceUnit> persistenceUnits;

	/**
	 * The default value of the '{@link #getVersion() <em>Version</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getVersion()
	 * @generated
	 * @ordered
	 */
	protected static final String VERSION_EDEFAULT = null;

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

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

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

	/**
	 * Returns the value of the '<em><b>Version</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Version</em>' attribute isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Version</em>' attribute.
	 * @see #setVersion(String)
	 * @see org.eclipse.jpt.core.internal.resource.persistence.PersistencePackage#getPersistence_Version()
	 * @model unique="false" dataType="org.eclipse.jpt.core.internal.resource.persistence.Version" required="true"
	 * @generated
	 */
	public String getVersion()
	{
		return version;
	}

	/**
	 * Sets the value of the '{@link org.eclipse.jpt.core.internal.resource.persistence.Persistence#getVersion <em>Version</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Version</em>' attribute.
	 * @see #getVersion()
	 * @generated
	 */
	public void setVersion(String newVersion)
	{
		String oldVersion = version;
		version = newVersion;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, PersistencePackage.PERSISTENCE__VERSION, oldVersion, version));
	}

	/**
	 * Returns the value of the '<em><b>Persistence Units</b></em>' containment reference list.
	 * The list contents are of type {@link org.eclipse.jpt.core.internal.resource.persistence.PersistenceUnit}.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Persistence Units</em>' containment reference list isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Persistence Units</em>' containment reference list.
	 * @see org.eclipse.jpt.core.internal.resource.persistence.PersistencePackage#getPersistence_PersistenceUnits()
	 * @model containment="true"
	 * @generated
	 */
	public EList<PersistenceUnit> getPersistenceUnits()
	{
		if (persistenceUnits == null)
		{
			persistenceUnits = new EObjectContainmentEList<PersistenceUnit>(PersistenceUnit.class, this, PersistencePackage.PERSISTENCE__PERSISTENCE_UNITS);
		}
		return persistenceUnits;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs)
	{
		switch (featureID)
		{
			case PersistencePackage.PERSISTENCE__PERSISTENCE_UNITS:
				return ((InternalEList<?>)getPersistenceUnits()).basicRemove(otherEnd, 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 PersistencePackage.PERSISTENCE__PERSISTENCE_UNITS:
				return getPersistenceUnits();
			case PersistencePackage.PERSISTENCE__VERSION:
				return getVersion();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue)
	{
		switch (featureID)
		{
			case PersistencePackage.PERSISTENCE__PERSISTENCE_UNITS:
				getPersistenceUnits().clear();
				getPersistenceUnits().addAll((Collection<? extends PersistenceUnit>)newValue);
				return;
			case PersistencePackage.PERSISTENCE__VERSION:
				setVersion((String)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID)
	{
		switch (featureID)
		{
			case PersistencePackage.PERSISTENCE__PERSISTENCE_UNITS:
				getPersistenceUnits().clear();
				return;
			case PersistencePackage.PERSISTENCE__VERSION:
				setVersion(VERSION_EDEFAULT);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID)
	{
		switch (featureID)
		{
			case PersistencePackage.PERSISTENCE__PERSISTENCE_UNITS:
				return persistenceUnits != null && !persistenceUnits.isEmpty();
			case PersistencePackage.PERSISTENCE__VERSION:
				return VERSION_EDEFAULT == null ? version != null : !VERSION_EDEFAULT.equals(version);
		}
		return super.eIsSet(featureID);
	}

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

		StringBuffer result = new StringBuffer(super.toString());
		result.append(" (version: ");
		result.append(version);
		result.append(')');
		return result.toString();
	}

} // Persistence