/*
 * Copyright (c) 2003, 2005 IBM Corporation and others.
 * 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:
 *   IBM - initial API and implementation
 *
 * $Id: FeatureImpl.java,v 1.14 2005/11/09 22:53:08 khussey Exp $
 */
package org.eclipse.uml2.impl;

import java.util.Collection;
import java.util.Iterator;

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

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

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;

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

import org.eclipse.uml2.Classifier;
import org.eclipse.uml2.Feature;
import org.eclipse.uml2.StringExpression;
import org.eclipse.uml2.TemplateSignature;
import org.eclipse.uml2.UML2Package;
import org.eclipse.uml2.VisibilityKind;

import org.eclipse.uml2.common.util.DerivedUnionEObjectEList;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Feature</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.uml2.impl.FeatureImpl#getFeaturingClassifiers <em>Featuring Classifier</em>}</li>
 *   <li>{@link org.eclipse.uml2.impl.FeatureImpl#isStatic <em>Is Static</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public abstract class FeatureImpl extends RedefinableElementImpl implements Feature {
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public static final String copyright = "Copyright (c) IBM Corporation and others."; //$NON-NLS-1$

	/**
	 * The cached value of the '{@link #getFeaturingClassifiers() <em>Featuring Classifier</em>}' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getFeaturingClassifiers()
	 * @generated
	 * @ordered
	 */
	protected EList featuringClassifier = null;

	/**
	 * The default value of the '{@link #isStatic() <em>Is Static</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isStatic()
	 * @generated
	 * @ordered
	 */
	protected static final boolean IS_STATIC_EDEFAULT = false;

	/**
	 * The flag representing the value of the '{@link #isStatic() <em>Is Static</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isStatic()
	 * @generated
	 * @ordered
	 */
	protected static final int IS_STATIC_EFLAG = 1 << 9;

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected EClass eStaticClass() {
		return UML2Package.eINSTANCE.getFeature();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isStatic() {
		return (eFlags & IS_STATIC_EFLAG) != 0;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setIsStatic(boolean newIsStatic) {
		boolean oldIsStatic = (eFlags & IS_STATIC_EFLAG) != 0;
		if (newIsStatic) eFlags |= IS_STATIC_EFLAG; else eFlags &= ~IS_STATIC_EFLAG;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, UML2Package.FEATURE__IS_STATIC, oldIsStatic, newIsStatic));

	}


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getFeaturingClassifiers() {
		if (featuringClassifier == null) {
			featuringClassifier = new DerivedUnionEObjectEList(Classifier.class, this, UML2Package.FEATURE__FEATURING_CLASSIFIER, new EStructuralFeature[] {});
		}
		return featuringClassifier;
	}


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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
    public Classifier getFeaturingClassifier(String name) {
		for (Iterator i = getFeaturingClassifiers().iterator(); i.hasNext(); ) {
			Classifier featuringClassifier = (Classifier) i.next();
			if (name.equals(featuringClassifier.getName())) {
				return featuringClassifier;
			}
		}
		return null;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Object eGet(EStructuralFeature eFeature, boolean resolve) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.FEATURE__EANNOTATIONS:
				return getEAnnotations();
			case UML2Package.FEATURE__OWNED_ELEMENT:
				return getOwnedElements();
			case UML2Package.FEATURE__OWNER:
				if (resolve) return getOwner();
				return basicGetOwner();
			case UML2Package.FEATURE__OWNED_COMMENT:
				return getOwnedComments();
			case UML2Package.FEATURE__TEMPLATE_BINDING:
				return getTemplateBindings();
			case UML2Package.FEATURE__OWNED_TEMPLATE_SIGNATURE:
				return getOwnedTemplateSignature();
			case UML2Package.FEATURE__NAME:
				return getName();
			case UML2Package.FEATURE__QUALIFIED_NAME:
				return getQualifiedName();
			case UML2Package.FEATURE__VISIBILITY:
				return getVisibility();
			case UML2Package.FEATURE__CLIENT_DEPENDENCY:
				return getClientDependencies();
			case UML2Package.FEATURE__NAME_EXPRESSION:
				return getNameExpression();
			case UML2Package.FEATURE__REDEFINITION_CONTEXT:
				return getRedefinitionContexts();
			case UML2Package.FEATURE__IS_LEAF:
				return isLeaf() ? Boolean.TRUE : Boolean.FALSE;
			case UML2Package.FEATURE__FEATURING_CLASSIFIER:
				return getFeaturingClassifiers();
			case UML2Package.FEATURE__IS_STATIC:
				return isStatic() ? Boolean.TRUE : Boolean.FALSE;
		}
		return eDynamicGet(eFeature, resolve);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eSet(EStructuralFeature eFeature, Object newValue) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.FEATURE__EANNOTATIONS:
				getEAnnotations().clear();
				getEAnnotations().addAll((Collection)newValue);
				return;
			case UML2Package.FEATURE__OWNED_COMMENT:
				getOwnedComments().clear();
				getOwnedComments().addAll((Collection)newValue);
				return;
			case UML2Package.FEATURE__TEMPLATE_BINDING:
				getTemplateBindings().clear();
				getTemplateBindings().addAll((Collection)newValue);
				return;
			case UML2Package.FEATURE__OWNED_TEMPLATE_SIGNATURE:
				setOwnedTemplateSignature((TemplateSignature)newValue);
				return;
			case UML2Package.FEATURE__NAME:
				setName((String)newValue);
				return;
			case UML2Package.FEATURE__VISIBILITY:
				setVisibility((VisibilityKind)newValue);
				return;
			case UML2Package.FEATURE__CLIENT_DEPENDENCY:
				getClientDependencies().clear();
				getClientDependencies().addAll((Collection)newValue);
				return;
			case UML2Package.FEATURE__NAME_EXPRESSION:
				setNameExpression((StringExpression)newValue);
				return;
			case UML2Package.FEATURE__IS_LEAF:
				setIsLeaf(((Boolean)newValue).booleanValue());
				return;
			case UML2Package.FEATURE__IS_STATIC:
				setIsStatic(((Boolean)newValue).booleanValue());
				return;
		}
		eDynamicSet(eFeature, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eUnset(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.FEATURE__EANNOTATIONS:
				getEAnnotations().clear();
				return;
			case UML2Package.FEATURE__OWNED_COMMENT:
				getOwnedComments().clear();
				return;
			case UML2Package.FEATURE__TEMPLATE_BINDING:
				getTemplateBindings().clear();
				return;
			case UML2Package.FEATURE__OWNED_TEMPLATE_SIGNATURE:
				setOwnedTemplateSignature((TemplateSignature)null);
				return;
			case UML2Package.FEATURE__NAME:
				setName(NAME_EDEFAULT);
				return;
			case UML2Package.FEATURE__VISIBILITY:
				setVisibility(VISIBILITY_EDEFAULT);
				return;
			case UML2Package.FEATURE__CLIENT_DEPENDENCY:
				getClientDependencies().clear();
				return;
			case UML2Package.FEATURE__NAME_EXPRESSION:
				setNameExpression((StringExpression)null);
				return;
			case UML2Package.FEATURE__IS_LEAF:
				setIsLeaf(IS_LEAF_EDEFAULT);
				return;
			case UML2Package.FEATURE__IS_STATIC:
				setIsStatic(IS_STATIC_EDEFAULT);
				return;
		}
		eDynamicUnset(eFeature);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean eIsSet(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case UML2Package.FEATURE__EANNOTATIONS:
				return eAnnotations != null && !eAnnotations.isEmpty();
			case UML2Package.FEATURE__OWNED_ELEMENT:
				return isSetOwnedElements();
			case UML2Package.FEATURE__OWNER:
				return isSetOwner();
			case UML2Package.FEATURE__OWNED_COMMENT:
				return ownedComment != null && !ownedComment.isEmpty();
			case UML2Package.FEATURE__TEMPLATE_BINDING:
				return templateBinding != null && !templateBinding.isEmpty();
			case UML2Package.FEATURE__OWNED_TEMPLATE_SIGNATURE:
				return ownedTemplateSignature != null;
			case UML2Package.FEATURE__NAME:
				return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
			case UML2Package.FEATURE__QUALIFIED_NAME:
				return QUALIFIED_NAME_EDEFAULT == null ? getQualifiedName() != null : !QUALIFIED_NAME_EDEFAULT.equals(getQualifiedName());
			case UML2Package.FEATURE__VISIBILITY:
				return visibility != VISIBILITY_EDEFAULT;
			case UML2Package.FEATURE__CLIENT_DEPENDENCY:
				return clientDependency != null && !clientDependency.isEmpty();
			case UML2Package.FEATURE__NAME_EXPRESSION:
				return nameExpression != null;
			case UML2Package.FEATURE__REDEFINITION_CONTEXT:
				return isSetRedefinitionContexts();
			case UML2Package.FEATURE__IS_LEAF:
				return ((eFlags & IS_LEAF_EFLAG) != 0) != IS_LEAF_EDEFAULT;
			case UML2Package.FEATURE__FEATURING_CLASSIFIER:
				return isSetFeaturingClassifiers();
			case UML2Package.FEATURE__IS_STATIC:
				return ((eFlags & IS_STATIC_EFLAG) != 0) != IS_STATIC_EDEFAULT;
		}
		return eDynamicIsSet(eFeature);
	}

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

		StringBuffer result = new StringBuffer(super.toString());
		result.append(" (isStatic: "); //$NON-NLS-1$
		result.append((eFlags & IS_STATIC_EFLAG) != 0);
		result.append(')');
		return result.toString();
	}


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	protected EList getFeaturingClassifiersHelper(EList featuringClassifier) {
		if (eContainer instanceof Classifier) {
			featuringClassifier.add(eContainer);
		}
		return featuringClassifier;
	}

} //FeatureImpl