/*
 * Copyright (c) 2005, 2011 IBM Corporation, 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 (CEA) - 327039
 *
 * $Id: RemoveVariableValueAction.java,v 1.10 2007/10/23 15:54:22 jbruck Exp $
 */
package org.eclipse.uml2.uml;

import java.util.Map;

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

import org.eclipse.emf.ecore.EClass;

/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Remove Variable Value Action</b></em>'.
 * <!-- end-user-doc -->
 *
 * <!-- begin-model-doc -->
 * A remove variable value action is a write variable action that removes values from variables.
 * <!-- end-model-doc -->
 *
 * <p>
 * The following features are supported:
 * <ul>
 *   <li>{@link org.eclipse.uml2.uml.RemoveVariableValueAction#isRemoveDuplicates <em>Is Remove Duplicates</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.RemoveVariableValueAction#getRemoveAt <em>Remove At</em>}</li>
 * </ul>
 * </p>
 *
 * @see org.eclipse.uml2.uml.UMLPackage#getRemoveVariableValueAction()
 * @model
 * @generated
 */
public interface RemoveVariableValueAction
		extends WriteVariableAction {

	/**
	 * Returns the value of the '<em><b>Is Remove Duplicates</b></em>' attribute.
	 * The default value is <code>"false"</code>.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Specifies whether to remove duplicates of the value in nonunique variables.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Is Remove Duplicates</em>' attribute.
	 * @see #setIsRemoveDuplicates(boolean)
	 * @see org.eclipse.uml2.uml.UMLPackage#getRemoveVariableValueAction_IsRemoveDuplicates()
	 * @model default="false" dataType="org.eclipse.uml2.types.Boolean" required="true" ordered="false"
	 * @generated
	 */
	boolean isRemoveDuplicates();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.RemoveVariableValueAction#isRemoveDuplicates <em>Is Remove Duplicates</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Is Remove Duplicates</em>' attribute.
	 * @see #isRemoveDuplicates()
	 * @generated
	 */
	void setIsRemoveDuplicates(boolean value);

	/**
	 * Returns the value of the '<em><b>Remove At</b></em>' containment reference.
	 * <p>
	 * This feature subsets the following features:
	 * <ul>
	 *   <li>'{@link org.eclipse.uml2.uml.Action#getInputs() <em>Input</em>}'</li>
	 * </ul>
	 * </p>
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Specifies the position of an existing value to remove in ordered nonunique variables. The type of the pin is UnlimitedNatural, but the value cannot be zero or unlimited.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Remove At</em>' containment reference.
	 * @see #setRemoveAt(InputPin)
	 * @see org.eclipse.uml2.uml.UMLPackage#getRemoveVariableValueAction_RemoveAt()
	 * @model containment="true" resolveProxies="true" ordered="false"
	 * @generated
	 */
	InputPin getRemoveAt();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.RemoveVariableValueAction#getRemoveAt <em>Remove At</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Remove At</em>' containment reference.
	 * @see #getRemoveAt()
	 * @generated
	 */
	void setRemoveAt(InputPin value);

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.InputPin}, with the specified '<em><b>Name</b></em>', and '<em><b>Type</b></em>', and sets the '<em><b>Remove At</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.InputPin}, or <code>null</code>.
	 * @param type The '<em><b>Type</b></em>' for the new {@link org.eclipse.uml2.uml.InputPin}, or <code>null</code>.
	 * @param eClass The Ecore class of the {@link org.eclipse.uml2.uml.InputPin} to create.
	 * @return The new {@link org.eclipse.uml2.uml.InputPin}.
	 * @see #getRemoveAt()
	 * @generated
	 */
	InputPin createRemoveAt(String name, Type type, EClass eClass);

	/**
	 * Creates a new {@link org.eclipse.uml2.uml.InputPin},with the specified '<em><b>Name</b></em>', and '<em><b>Type</b></em>', and sets the '<em><b>Remove At</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.InputPin}, or <code>null</code>.
	 * @param type The '<em><b>Type</b></em>' for the new {@link org.eclipse.uml2.uml.InputPin}, or <code>null</code>.
	 * @return The new {@link org.eclipse.uml2.uml.InputPin}.
	 * @see #getRemoveAt()
	 * @generated
	 */
	InputPin createRemoveAt(String name, Type type);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * Actions removing a value from ordered non-unique variables must have a single removeAt input pin and no value input pin if isRemoveDuplicates is false. The removeAt pin must be of type Unlimited Natural with multiplicity 1..1. Otherwise, the action has a value input pin and no removeAt input pin.
	 * if not self.variable.isOrdered or self.variable.isUnique or isRemoveDuplicates then 
	 *   self.removeAt -> isEmpty() and self.value -> notEmpty()
	 * else
	 *   self.value -> isEmpty() and
	 *   self.removeAt -> notEmpty() and
	 *   self.removeAt.type = UnlimitedNatural and
	 *   self.removeAt.lower() = 1 and
	 *   self.removeAt.upper() = 1
	 * endif
	 * @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 validateUnlimitedNatural(DiagnosticChain diagnostics,
			Map<Object, Object> context);

} // RemoveVariableValueAction