/*
 * Copyright (c) 2005, 2011 IBM Corporation, Embarcadero Technologies, CEA, 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
 *   Kenn Hussey (Embarcadero Technologies) - 205188
 *   Kenn Hussey (CEA) - 327039, 351774
 *
 */
package org.eclipse.uml2.uml;

import java.util.Map;

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

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

import org.eclipse.emf.ecore.EClass;

/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Activity Edge</b></em>'.
 * <!-- end-user-doc -->
 *
 * <!-- begin-model-doc -->
 * Activity edges can be contained in interruptible regions.
 * An activity edge is an abstract class for directed connections between two activity nodes.
 * <!-- end-model-doc -->
 *
 * <p>
 * The following features are supported:
 * <ul>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getActivity <em>Activity</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getGuard <em>Guard</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getInPartitions <em>In Partition</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getInStructuredNode <em>In Structured Node</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getInterrupts <em>Interrupts</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getRedefinedEdges <em>Redefined Edge</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getSource <em>Source</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getTarget <em>Target</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getWeight <em>Weight</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ActivityEdge#getInGroups <em>In Group</em>}</li>
 * </ul>
 * </p>
 *
 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge()
 * @model abstract="true"
 * @generated
 */
public interface ActivityEdge
		extends RedefinableElement {

	/**
	 * Returns the value of the '<em><b>Activity</b></em>' container reference.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.Activity#getEdges <em>Edge</em>}'.
	 * <p>
	 * This feature subsets the following features:
	 * <ul>
	 *   <li>'{@link org.eclipse.uml2.uml.Element#getOwner() <em>Owner</em>}'</li>
	 * </ul>
	 * </p>
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Activity containing the edge.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Activity</em>' container reference.
	 * @see #setActivity(Activity)
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_Activity()
	 * @see org.eclipse.uml2.uml.Activity#getEdges
	 * @model opposite="edge" transient="false" ordered="false"
	 * @generated
	 */
	Activity getActivity();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.ActivityEdge#getActivity <em>Activity</em>}' container reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Activity</em>' container reference.
	 * @see #getActivity()
	 * @generated
	 */
	void setActivity(Activity value);

	/**
	 * Returns the value of the '<em><b>In Group</b></em>' reference list.
	 * The list contents are of type {@link org.eclipse.uml2.uml.ActivityGroup}.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.ActivityGroup#getContainedEdges <em>Contained Edge</em>}'.
	 * This feature is a derived union.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Groups containing the edge.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>In Group</em>' reference list.
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_InGroup()
	 * @see org.eclipse.uml2.uml.ActivityGroup#getContainedEdges
	 * @model opposite="containedEdge" transient="true" changeable="false" volatile="true" derived="true" ordered="false"
	 * @generated
	 */
	EList<ActivityGroup> getInGroups();

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.ActivityGroup} with the specified '<em><b>Name</b></em>' from the '<em><b>In Group</b></em>' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.ActivityGroup} to retrieve, or <code>null</code>.
	 * @return The first {@link org.eclipse.uml2.uml.ActivityGroup} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getInGroups()
	 * @generated
	 */
	ActivityGroup getInGroup(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.ActivityGroup} with the specified '<em><b>Name</b></em>' from the '<em><b>In Group</b></em>' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.ActivityGroup} to retrieve, or <code>null</code>.
	 * @param ignoreCase Whether to ignore case in {@link java.lang.String} comparisons.
	 * @param eClass The Ecore class of the {@link org.eclipse.uml2.uml.ActivityGroup} to retrieve, or <code>null</code>.
	 * @return The first {@link org.eclipse.uml2.uml.ActivityGroup} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getInGroups()
	 * @generated
	 */
	ActivityGroup getInGroup(String name, boolean ignoreCase, EClass eClass);

	/**
	 * Returns the value of the '<em><b>In Partition</b></em>' reference list.
	 * The list contents are of type {@link org.eclipse.uml2.uml.ActivityPartition}.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.ActivityPartition#getEdges <em>Edge</em>}'.
	 * <p>
	 * This feature subsets the following features:
	 * <ul>
	 *   <li>'{@link org.eclipse.uml2.uml.ActivityEdge#getInGroups() <em>In Group</em>}'</li>
	 * </ul>
	 * </p>
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Partitions containing the edge.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>In Partition</em>' reference list.
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_InPartition()
	 * @see org.eclipse.uml2.uml.ActivityPartition#getEdges
	 * @model opposite="edge" ordered="false"
	 * @generated
	 */
	EList<ActivityPartition> getInPartitions();

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.ActivityPartition} with the specified '<em><b>Name</b></em>' from the '<em><b>In Partition</b></em>' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.ActivityPartition} to retrieve, or <code>null</code>.
	 * @return The first {@link org.eclipse.uml2.uml.ActivityPartition} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getInPartitions()
	 * @generated
	 */
	ActivityPartition getInPartition(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.ActivityPartition} with the specified '<em><b>Name</b></em>' from the '<em><b>In Partition</b></em>' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.ActivityPartition} to retrieve, or <code>null</code>.
	 * @param ignoreCase Whether to ignore case in {@link java.lang.String} comparisons.
	 * @return The first {@link org.eclipse.uml2.uml.ActivityPartition} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getInPartitions()
	 * @generated
	 */
	ActivityPartition getInPartition(String name, boolean ignoreCase);

	/**
	 * Returns the value of the '<em><b>In Structured Node</b></em>' container reference.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.StructuredActivityNode#getEdges <em>Edge</em>}'.
	 * <p>
	 * This feature subsets the following features:
	 * <ul>
	 *   <li>'{@link org.eclipse.uml2.uml.ActivityEdge#getInGroups() <em>In Group</em>}'</li>
	 *   <li>'{@link org.eclipse.uml2.uml.Element#getOwner() <em>Owner</em>}'</li>
	 * </ul>
	 * </p>
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Structured activity node containing the edge.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>In Structured Node</em>' container reference.
	 * @see #setInStructuredNode(StructuredActivityNode)
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_InStructuredNode()
	 * @see org.eclipse.uml2.uml.StructuredActivityNode#getEdges
	 * @model opposite="edge" transient="false" ordered="false"
	 * @generated
	 */
	StructuredActivityNode getInStructuredNode();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.ActivityEdge#getInStructuredNode <em>In Structured Node</em>}' container reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>In Structured Node</em>' container reference.
	 * @see #getInStructuredNode()
	 * @generated
	 */
	void setInStructuredNode(StructuredActivityNode value);

	/**
	 * Returns the value of the '<em><b>Target</b></em>' reference.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.ActivityNode#getIncomings <em>Incoming</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Node to which tokens are put when they traverse the edge.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Target</em>' reference.
	 * @see #setTarget(ActivityNode)
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_Target()
	 * @see org.eclipse.uml2.uml.ActivityNode#getIncomings
	 * @model opposite="incoming" required="true" ordered="false"
	 * @generated
	 */
	ActivityNode getTarget();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.ActivityEdge#getTarget <em>Target</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Target</em>' reference.
	 * @see #getTarget()
	 * @generated
	 */
	void setTarget(ActivityNode value);

	/**
	 * Returns the value of the '<em><b>Redefined Edge</b></em>' reference list.
	 * The list contents are of type {@link org.eclipse.uml2.uml.ActivityEdge}.
	 * <p>
	 * This feature subsets the following features:
	 * <ul>
	 *   <li>'{@link org.eclipse.uml2.uml.RedefinableElement#getRedefinedElements() <em>Redefined Element</em>}'</li>
	 * </ul>
	 * </p>
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Inherited edges replaced by this edge in a specialization of the activity.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Redefined Edge</em>' reference list.
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_RedefinedEdge()
	 * @model ordered="false"
	 * @generated
	 */
	EList<ActivityEdge> getRedefinedEdges();

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.ActivityEdge} with the specified '<em><b>Name</b></em>' from the '<em><b>Redefined Edge</b></em>' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.ActivityEdge} to retrieve, or <code>null</code>.
	 * @return The first {@link org.eclipse.uml2.uml.ActivityEdge} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getRedefinedEdges()
	 * @generated
	 */
	ActivityEdge getRedefinedEdge(String name);

	/**
	 * Retrieves the first {@link org.eclipse.uml2.uml.ActivityEdge} with the specified '<em><b>Name</b></em>' from the '<em><b>Redefined Edge</b></em>' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' of the {@link org.eclipse.uml2.uml.ActivityEdge} to retrieve, or <code>null</code>.
	 * @param ignoreCase Whether to ignore case in {@link java.lang.String} comparisons.
	 * @param eClass The Ecore class of the {@link org.eclipse.uml2.uml.ActivityEdge} to retrieve, or <code>null</code>.
	 * @return The first {@link org.eclipse.uml2.uml.ActivityEdge} with the specified '<em><b>Name</b></em>', or <code>null</code>.
	 * @see #getRedefinedEdges()
	 * @generated
	 */
	ActivityEdge getRedefinedEdge(String name, boolean ignoreCase, EClass eClass);

	/**
	 * Returns the value of the '<em><b>Guard</b></em>' containment reference.
	 * <p>
	 * This feature subsets the following features:
	 * <ul>
	 *   <li>'{@link org.eclipse.uml2.uml.Element#getOwnedElements() <em>Owned Element</em>}'</li>
	 * </ul>
	 * </p>
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Specification evaluated at runtime to determine if the edge can be traversed.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Guard</em>' containment reference.
	 * @see #setGuard(ValueSpecification)
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_Guard()
	 * @model containment="true" resolveProxies="true" required="true" ordered="false"
	 * @generated
	 */
	ValueSpecification getGuard();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.ActivityEdge#getGuard <em>Guard</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Guard</em>' containment reference.
	 * @see #getGuard()
	 * @generated
	 */
	void setGuard(ValueSpecification value);

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.ValueSpecification}, with the specified '<em><b>Name</b></em>', and '<em><b>Type</b></em>', and sets the '<em><b>Guard</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.ValueSpecification}, or <code>null</code>.
	 * @param type The '<em><b>Type</b></em>' for the new {@link org.eclipse.uml2.uml.ValueSpecification}, or <code>null</code>.
	 * @param eClass The Ecore class of the {@link org.eclipse.uml2.uml.ValueSpecification} to create.
	 * @return The new {@link org.eclipse.uml2.uml.ValueSpecification}.
	 * @see #getGuard()
	 * @generated
	 */
	ValueSpecification createGuard(String name, Type type, EClass eClass);

	/**
	 * Returns the value of the '<em><b>Weight</b></em>' containment reference.
	 * <p>
	 * This feature subsets the following features:
	 * <ul>
	 *   <li>'{@link org.eclipse.uml2.uml.Element#getOwnedElements() <em>Owned Element</em>}'</li>
	 * </ul>
	 * </p>
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The minimum number of tokens that must traverse the edge at the same time.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Weight</em>' containment reference.
	 * @see #setWeight(ValueSpecification)
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_Weight()
	 * @model containment="true" resolveProxies="true" required="true" ordered="false"
	 * @generated
	 */
	ValueSpecification getWeight();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.ActivityEdge#getWeight <em>Weight</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Weight</em>' containment reference.
	 * @see #getWeight()
	 * @generated
	 */
	void setWeight(ValueSpecification value);

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.ValueSpecification}, with the specified '<em><b>Name</b></em>', and '<em><b>Type</b></em>', and sets the '<em><b>Weight</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param name The '<em><b>Name</b></em>' for the new {@link org.eclipse.uml2.uml.ValueSpecification}, or <code>null</code>.
	 * @param type The '<em><b>Type</b></em>' for the new {@link org.eclipse.uml2.uml.ValueSpecification}, or <code>null</code>.
	 * @param eClass The Ecore class of the {@link org.eclipse.uml2.uml.ValueSpecification} to create.
	 * @return The new {@link org.eclipse.uml2.uml.ValueSpecification}.
	 * @see #getWeight()
	 * @generated
	 */
	ValueSpecification createWeight(String name, Type type, EClass eClass);

	/**
	 * Returns the value of the '<em><b>Interrupts</b></em>' reference.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.InterruptibleActivityRegion#getInterruptingEdges <em>Interrupting Edge</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Region that the edge can interrupt.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Interrupts</em>' reference.
	 * @see #setInterrupts(InterruptibleActivityRegion)
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_Interrupts()
	 * @see org.eclipse.uml2.uml.InterruptibleActivityRegion#getInterruptingEdges
	 * @model opposite="interruptingEdge" ordered="false"
	 * @generated
	 */
	InterruptibleActivityRegion getInterrupts();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.ActivityEdge#getInterrupts <em>Interrupts</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Interrupts</em>' reference.
	 * @see #getInterrupts()
	 * @generated
	 */
	void setInterrupts(InterruptibleActivityRegion value);

	/**
	 * Returns the value of the '<em><b>Source</b></em>' reference.
	 * It is bidirectional and its opposite is '{@link org.eclipse.uml2.uml.ActivityNode#getOutgoings <em>Outgoing</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Node from which tokens are taken when they traverse the edge.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Source</em>' reference.
	 * @see #setSource(ActivityNode)
	 * @see org.eclipse.uml2.uml.UMLPackage#getActivityEdge_Source()
	 * @see org.eclipse.uml2.uml.ActivityNode#getOutgoings
	 * @model opposite="outgoing" required="true" ordered="false"
	 * @generated
	 */
	ActivityNode getSource();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.ActivityEdge#getSource <em>Source</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Source</em>' reference.
	 * @see #getSource()
	 * @generated
	 */
	void setSource(ActivityNode value);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The source and target of an edge must be in the same activity as the edge.
	 * true
	 * @param diagnostics The chain of diagnostics to which problems are to be appended.
	 * @param context The cache of context-specific information.
	 * <!-- end-model-doc -->
	 * @model
	 * @generated
	 */
	boolean validateSourceAndTarget(DiagnosticChain diagnostics,
			Map<Object, Object> context);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Activity edges may be owned only by activities or groups.
	 * true
	 * @param diagnostics The chain of diagnostics to which problems are to be appended.
	 * @param context The cache of context-specific information.
	 * <!-- end-model-doc -->
	 * @model
	 * @generated
	 */
	boolean validateOwned(DiagnosticChain diagnostics,
			Map<Object, Object> context);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Activity edges may be owned by at most one structured node.
	 * true
	 * @param diagnostics The chain of diagnostics to which problems are to be appended.
	 * @param context The cache of context-specific information.
	 * <!-- end-model-doc -->
	 * @model
	 * @generated
	 */
	boolean validateStructuredNode(DiagnosticChain diagnostics,
			Map<Object, Object> context);

} // ActivityEdge