/*******************************************************************************
 *  Copyright (c) 2008  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.eclipselink.core.resource.elorm;

import java.util.Collection;

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

import org.eclipse.emf.ecore.EClass;

import org.eclipse.emf.ecore.util.EDataTypeEList;

import org.eclipse.jpt.core.resource.common.AbstractJpaEObject;

/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Xml Unique Constraint Impl</b></em>'.
 * <!-- end-user-doc -->
 *
 *
 * @see org.eclipse.jpt.eclipselink.core.resource.elorm.EclipseLinkOrmPackage#getXmlUniqueConstraintImpl()
 * @model kind="class"
 * @generated
 */
public class XmlUniqueConstraintImpl extends AbstractJpaEObject implements XmlUniqueConstraint
{
	/**
	 * The cached value of the '{@link #getColumnNames() <em>Column Names</em>}' attribute list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getColumnNames()
	 * @generated
	 * @ordered
	 */
	protected EList<String> columnNames;

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

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

	/**
	 * Returns the value of the '<em><b>Column Names</b></em>' attribute list.
	 * The list contents are of type {@link java.lang.String}.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Column Names</em>' attribute list isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Column Names</em>' attribute list.
	 * @see org.eclipse.jpt.eclipselink.core.resource.elorm.EclipseLinkOrmPackage#getXmlUniqueConstraint_ColumnNames()
	 * @model unique="false" dataType="org.eclipse.emf.ecore.xml.type.String" required="true"
	 * @generated
	 */
	public EList<String> getColumnNames()
	{
		if (columnNames == null)
		{
			columnNames = new EDataTypeEList<String>(String.class, this, EclipseLinkOrmPackage.XML_UNIQUE_CONSTRAINT_IMPL__COLUMN_NAMES);
		}
		return columnNames;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType)
	{
		switch (featureID)
		{
			case EclipseLinkOrmPackage.XML_UNIQUE_CONSTRAINT_IMPL__COLUMN_NAMES:
				return getColumnNames();
		}
		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 EclipseLinkOrmPackage.XML_UNIQUE_CONSTRAINT_IMPL__COLUMN_NAMES:
				getColumnNames().clear();
				getColumnNames().addAll((Collection<? extends String>)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID)
	{
		switch (featureID)
		{
			case EclipseLinkOrmPackage.XML_UNIQUE_CONSTRAINT_IMPL__COLUMN_NAMES:
				getColumnNames().clear();
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID)
	{
		switch (featureID)
		{
			case EclipseLinkOrmPackage.XML_UNIQUE_CONSTRAINT_IMPL__COLUMN_NAMES:
				return columnNames != null && !columnNames.isEmpty();
		}
		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(" (columnNames: ");
		result.append(columnNames);
		result.append(')');
		return result.toString();
	}

} // XmlUniqueConstraintImpl