diff options
Diffstat (limited to 'jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/validation/internal/el/operators/UnaryOperator.java')
-rw-r--r-- | jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/validation/internal/el/operators/UnaryOperator.java | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/validation/internal/el/operators/UnaryOperator.java b/jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/validation/internal/el/operators/UnaryOperator.java deleted file mode 100644 index d6a075999..000000000 --- a/jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/validation/internal/el/operators/UnaryOperator.java +++ /dev/null @@ -1,106 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2006 Oracle Corporation. - * 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: - * Cameron Bateman/Oracle - initial API and implementation - * - ********************************************************************************/ - -package org.eclipse.jst.jsf.validation.internal.el.operators; - -import org.eclipse.emf.common.util.Diagnostic; -import org.eclipse.jst.jsf.common.internal.types.ValueType; -import org.eclipse.jst.jsf.validation.internal.el.diagnostics.DiagnosticFactory; -import org.eclipse.jst.jsp.core.internal.java.jspel.JSPELParserConstants; -import org.eclipse.jst.jsp.core.internal.java.jspel.Token; - -/** - * Encapsulates an EL unary operator - * @author cbateman - * - */ -public abstract class UnaryOperator -{ - /** - * The common factory used to construct diagnostics - */ - protected final DiagnosticFactory _diagnosticFactory; - - /** - * @param token - * @return true if the token is a unary operator - */ - public static boolean isUnaryOperator(Token token) - { - return (token.kind == JSPELParserConstants.MINUS) - || (token.kind == JSPELParserConstants.NOT1) - || (token.kind == JSPELParserConstants.NOT2) - || (token.kind == JSPELParserConstants.EMPTY); - } - - /** - * @param token - * @param diagnosticFactory - * @return a new UnaryOperator instance matching token - */ - public static UnaryOperator createUnaryOperator(Token token, DiagnosticFactory diagnosticFactory) - { - if (!isUnaryOperator(token)) - { - throw new IllegalArgumentException("token must be a unary operator"); - } - - switch(token.kind) - { - case JSPELParserConstants.MINUS: - return new MinusUnaryOperator(diagnosticFactory); - - case JSPELParserConstants.NOT1: - case JSPELParserConstants.NOT2: - return new NotUnaryOperator(diagnosticFactory); - - case JSPELParserConstants.EMPTY: - return new EmptyUnaryOperator(diagnosticFactory); - } - - // should never get here because all four ops are covered - throw new AssertionError(); - } - - /** - * Constructor - */ - UnaryOperator(DiagnosticFactory diagnosticFactory) - { - /* no construction or sub-classing outside package*/ - _diagnosticFactory = diagnosticFactory; - } - - /** - * If ValueType is a literal and the operation can be performed, then - * the return must be a new LiteralType transformed using this operator. - * - * If ValueType is not a literal and the operaton can be performed, then - * the return is a new ValueType transformed per the rules of the operator - * (i.e. if it is a string type and the operator is "!", then the string - * must be coerced to a boolean and this is what will be returned) - * - * If the operation cannot be performed on ValueType, return null - * - * @param type - * @return a new value type after the operation is performed - */ - public abstract ValueType performOperation(ValueType type); - - - /** - * @param type - * @return a Diagnostic interpreting whether it is valid to perform the - * operation on this type - */ - public abstract Diagnostic validate(ValueType type); -} |