| /* Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.xmlbeans.impl.binding.joust; |
| |
| /** |
| * Creates instances of Expression to be used in conjunction with a |
| * JavaOutputStream. Instances of ExpressionFactory are retrieved via |
| * JavaOutputStream.getExpressionFactory(). |
| * |
| * We'll probably have to add more methods here to accommodate more |
| * primitives, arrays and so forth. |
| * |
| * @author Patrick Calahan <pcal@bea.com> |
| */ |
| public interface ExpressionFactory { |
| |
| /** |
| * Returns an expression representing a constant boolean value. |
| */ |
| public Expression createBoolean(boolean value); |
| |
| /** |
| * Returns an expression representing a literal string. |
| */ |
| public Expression createString(String value); |
| |
| /** |
| * Returns an expression representing a constant int. |
| */ |
| public Expression createInt(int value); |
| |
| /** |
| * Returns an expression representing the 'null' token. |
| */ |
| public Expression createNull(); |
| |
| /** |
| * Returns an expresion whose text representation is the given string. |
| */ |
| public Expression createVerbatim(String value); |
| |
| } |