| /******************************************************************************* |
| * Copyright (c) 2009, 2018 SAP AG and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v20.html |
| * |
| * Contributors: |
| * SAP AG - initial API and implementation |
| ****************************************************************************** |
| */ |
| package dataaccess.query; |
| |
| import behavioral.actions.Iterator; |
| |
| import dataaccess.expressions.Expression; |
| import dataaccess.expressions.ObjectBasedExpression; |
| |
| /** |
| * <!-- begin-user-doc --> |
| * A representation of the model object '<em><b>Selection</b></em>'. |
| * <!-- end-user-doc --> |
| * |
| * <!-- begin-model-doc --> |
| * Filters the (multi-)object based on the "condition" predicate. The expression can assume an implicit iterator variable "self" to be in scope which holds a single element of the (multi-)object from which to select. self's basic type is the same as that of "object" but with single multiplicity. |
| * |
| * The expression's type must be Boolean. If the expression evaluates to true, the single object is part of the resulting object, otherwise not. |
| * |
| * The Selection expression's result type is the same as object's type. |
| * <!-- end-model-doc --> |
| * |
| * <p> |
| * The following features are supported: |
| * <ul> |
| * <li>{@link dataaccess.query.Selection#getIterator <em>Iterator</em>}</li> |
| * <li>{@link dataaccess.query.Selection#getSelectionExpr <em>Selection Expr</em>}</li> |
| * </ul> |
| * </p> |
| * |
| * @see dataaccess.query.QueryPackage#getSelection() |
| * @model annotation="http://www.eclipse.org/emf/2002/Ecore/OCL ConditionMustBeSideEffectFree='self.selectionExpr.isSideEffectFree()' ConditionMustBeBooleanOrNumeric='self.selectionExpr.getType().oclIsKindOf(data::classes::ClassTypeDefinition) and\r\n (\r\n (\r\n self.selectionExpr.getType().oclAsType(data::classes::ClassTypeDefinition).clazz.name = \'Boolean\' and\r\n self.selectionExpr.getType().upperMultiplicity = 1\r\n )\r\n or\r\n (\r\n self.selectionExpr.getType().oclAsType(data::classes::ClassTypeDefinition).clazz.name = \'Number\' \r\n and \r\n self.object.getType().ordered\r\n )\r\n )'" |
| * annotation="http://www.eclipse.org/emf/2002/Ecore constraints='ConditionMustBeSideEffectFree ConditionMustBeBooleanOrNumeric'" |
| * @generated |
| */ |
| public interface Selection extends ObjectBasedExpression { |
| /** |
| * Returns the value of the '<em><b>Iterator</b></em>' containment reference. |
| * It is bidirectional and its opposite is '{@link behavioral.actions.Iterator#getSelection <em>Selection</em>}'. |
| * <!-- begin-user-doc --> |
| * <p> |
| * If the meaning of the '<em>Iterator</em>' containment reference isn't clear, |
| * there really should be more of a description here... |
| * </p> |
| * <!-- end-user-doc --> |
| * @return the value of the '<em>Iterator</em>' containment reference. |
| * @see #setIterator(Iterator) |
| * @see dataaccess.query.QueryPackage#getSelection_Iterator() |
| * @see behavioral.actions.Iterator#getSelection |
| * @model opposite="selection" containment="true" resolveProxies="true" required="true" |
| * @generated |
| */ |
| Iterator getIterator(); |
| |
| /** |
| * Sets the value of the '{@link dataaccess.query.Selection#getIterator <em>Iterator</em>}' containment reference. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @param value the new value of the '<em>Iterator</em>' containment reference. |
| * @see #getIterator() |
| * @generated |
| */ |
| void setIterator(Iterator value); |
| |
| /** |
| * Returns the value of the '<em><b>Selection Expr</b></em>' containment reference. |
| * <!-- begin-user-doc --> |
| * <p> |
| * If the meaning of the '<em>Selection Expr</em>' containment reference isn't clear, |
| * there really should be more of a description here... |
| * </p> |
| * <!-- end-user-doc --> |
| * @return the value of the '<em>Selection Expr</em>' containment reference. |
| * @see #setSelectionExpr(Expression) |
| * @see dataaccess.query.QueryPackage#getSelection_SelectionExpr() |
| * @model containment="true" resolveProxies="true" required="true" |
| * annotation="http://schema.omg.org/spec/MOF/2.0/emof.xml Property.oppositeRoleName='selection'" |
| * @generated |
| */ |
| Expression getSelectionExpr(); |
| |
| /** |
| * Sets the value of the '{@link dataaccess.query.Selection#getSelectionExpr <em>Selection Expr</em>}' containment reference. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @param value the new value of the '<em>Selection Expr</em>' containment reference. |
| * @see #getSelectionExpr() |
| * @generated |
| */ |
| void setSelectionExpr(Expression value); |
| |
| } // Selection |