/*
 * Copyright (c) 2003, 2004 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: ValueSpecification.java,v 1.9 2005/06/22 20:59:18 khussey Exp $
 */
package org.eclipse.uml2;


/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Value Specification</b></em>'.
 * <!-- end-user-doc -->
 *
 * <!-- begin-model-doc -->
 * ValueSpecification is an abstract metaclass used to identify a value or values in a model. It may reference an instance or it may be an expression denoting an instance or instances when evaluated. 
 * <!-- end-model-doc -->
 *
 *
 * @see org.eclipse.uml2.UML2Package#getValueSpecification()
 * @model abstract="true"
 * @generated
 */
public interface ValueSpecification extends TypedElement, ParameterableElement{
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	String copyright = "Copyright (c) IBM Corporation and others."; //$NON-NLS-1$

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A query based on the following OCL expression:
	 * <code>
	 * false
	 * </code>
	 * <!-- end-model-doc -->
	 * @model kind="operation" dataType="org.eclipse.uml2.Boolean"
	 * @generated
	 */
	boolean isComputable();

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A query based on the following OCL expression:
	 * <code>
	 * Set{}
	 * </code>
	 * <!-- end-model-doc -->
	 * @model dataType="org.eclipse.uml2.Integer"
	 * @generated
	 */
	int integerValue();

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A query based on the following OCL expression:
	 * <code>
	 * Set{}
	 * </code>
	 * <!-- end-model-doc -->
	 * @model dataType="org.eclipse.uml2.Boolean"
	 * @generated
	 */
	boolean booleanValue();

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A query based on the following OCL expression:
	 * <code>
	 * Set{}
	 * </code>
	 * <!-- end-model-doc -->
	 * @model dataType="org.eclipse.uml2.String"
	 * @generated
	 */
	String stringValue();

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A query based on the following OCL expression:
	 * <code>
	 * Set{}
	 * </code>
	 * <!-- end-model-doc -->
	 * @model dataType="org.eclipse.uml2.UnlimitedNatural"
	 * @generated
	 */
	int unlimitedValue();

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * A query based on the following OCL expression:
	 * <code>
	 * false
	 * </code>
	 * <!-- end-model-doc -->
	 * @model kind="operation" dataType="org.eclipse.uml2.Boolean"
	 * @generated
	 */
	boolean isNull();

} // ValueSpecification