Browse Source
git-svn-id: https://src.springframework.org/svn/spring-framework/trunk@4 50f2f4bb-b051-0410-bef5-90022cba6387pull/1/head
Andy Clement
18 years ago
14 changed files with 92 additions and 310 deletions
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/* |
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* Copyright 2004-2008 the original author or authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.springframework.binding.expression; |
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/** |
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* Indicates an expression evaluation failed. |
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* |
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* @author Keith Donald |
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*/ |
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public class EvaluationException extends RuntimeException { |
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private Class contextClass; |
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private String expressionString; |
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/** |
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* Creates a new evaluation exception. |
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* @param contextClass the class of object upon which evaluation was attempted |
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* @param expressionString the string form of the expression that failed to evaluate |
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* @param message the exception message |
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*/ |
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public EvaluationException(Class contextClass, String expressionString, String message) { |
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this(contextClass, expressionString, message, null); |
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} |
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/** |
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* Creates a new evaluation exception. |
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* @param contextClass the class of object upon which evaluation was attempted |
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* @param expressionString the string form of the expression that failed to evaluate |
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* @param message the exception message |
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* @param cause the underlying cause of this evaluation exception |
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*/ |
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public EvaluationException(Class contextClass, String expressionString, String message, Throwable cause) { |
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super(message, cause); |
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} |
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/** |
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* The class of object upon which evaluation was attempted and failed. |
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* @return the context class
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*/ |
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public Class getContextClass() { |
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return contextClass; |
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} |
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/** |
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* The string form of the expression that failed to evaluate against an instance of the the context class. |
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* @return the expression string |
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*/ |
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public String getExpressionString() { |
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return expressionString; |
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} |
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} |
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@@ -1,95 +0,0 @@
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/* |
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* Copyright 2004-2008 the original author or authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.springframework.binding.expression; |
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/** |
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* An expression variable. |
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* @author Keith Donald |
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*/ |
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public class ExpressionVariable { |
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private String name; |
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private String valueExpression; |
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private ParserContext parserContext; |
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/** |
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* Creates a new expression variable. |
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* @param name the name of the variable, acting as an convenient alias (required) |
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* @param valueExpression the value expression (required) |
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*/ |
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public ExpressionVariable(String name, String valueExpression) { |
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init(name, valueExpression, null); |
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} |
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/** |
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* Creates a new expression variable with a populated parser context. |
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* @param name the name of the variable, acting as an convenient alias (required) |
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* @param valueExpression the value expression (required) |
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* @param parserContext the parser context to use to parse the value expression (optional) |
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*/ |
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public ExpressionVariable(String name, String valueExpression, ParserContext parserContext) { |
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init(name, valueExpression, parserContext); |
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} |
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/** |
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* Returns the variable name. |
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* @return the variable name |
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*/ |
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public String getName() { |
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return name; |
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} |
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/** |
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* Returns the expression that will be evaluated when the variable is referenced by its name in another expression. |
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* @return the expression value. |
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*/ |
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public String getValueExpression() { |
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return valueExpression; |
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} |
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/** |
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* Returns the parser context to use to parse the variable's value expression. |
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* @return the value expression parser context |
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*/ |
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public ParserContext getParserContext() { |
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return parserContext; |
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} |
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public boolean equals(Object o) { |
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if (!(o instanceof ExpressionVariable)) { |
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return false; |
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} |
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ExpressionVariable var = (ExpressionVariable) o; |
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return name.equals(var.name); |
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} |
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public int hashCode() { |
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return name.hashCode(); |
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} |
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public String toString() { |
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return "[Expression Variable '" + name + "']"; |
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} |
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private void init(String name, String valueExpression, ParserContext parserContext) { |
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this.name = name; |
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this.valueExpression = valueExpression; |
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this.parserContext = parserContext; |
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} |
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} |
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/* |
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* Copyright 2004-2008 the original author or authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.springframework.binding.expression; |
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/** |
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* Base class for exceptions thrown during expression parsing. |
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* |
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* @author Keith Donald |
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*/ |
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public class ParserException extends RuntimeException { |
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/** |
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* The expression string that could not be parsed. |
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*/ |
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private String expressionString; |
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/** |
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* Creates a new expression parsing exception. |
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* @param expressionString the expression string that could not be parsed |
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* @param cause the underlying cause of this exception |
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*/ |
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public ParserException(String expressionString, Throwable cause) { |
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this(expressionString, "Unable to parse expression string '" + expressionString + "'", cause); |
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} |
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/** |
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* Creates a new expression parsing exception. |
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* @param expressionString the expression string that could not be parsed |
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* @param message a descriptive message |
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* @param cause the underlying cause of this exception |
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*/ |
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public ParserException(String expressionString, String message, Throwable cause) { |
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super(message, cause); |
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this.expressionString = expressionString; |
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} |
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/** |
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* Returns the expression string that could not be parsed. |
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*/ |
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public Object getExpressionString() { |
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return expressionString; |
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} |
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} |
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@ -1,36 +0,0 @@
@@ -1,36 +0,0 @@
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/* |
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* Copyright 2004-2008 the original author or authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
|
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.springframework.binding.expression; |
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/** |
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* An evaluation exception indicating a expression that references a property failed to evaluate because the property |
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* could not be found. |
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* @author Keith Donald |
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*/ |
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public class PropertyNotFoundException extends EvaluationException { |
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/** |
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* Creates a new property not found exception |
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* @param contextClass the class of object upon which property evaluation was attempted |
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* @param property the property that could not be found |
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* @param cause root cause of the failure |
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*/ |
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public PropertyNotFoundException(Class contextClass, String property, Throwable cause) { |
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super(contextClass, property, "Property '" + property + "' not found on context of class [" |
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+ contextClass.getName() + "]", cause); |
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} |
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} |
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@ -1,7 +0,0 @@
@@ -1,7 +0,0 @@
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<html> |
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<body> |
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<p> |
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Core expression language abstraction for parsing and evaluating expressions. |
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</p> |
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</body> |
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</html> |
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<html> |
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<body> |
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<p> |
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The Spring Data Binding framework, an internal library used by Spring Web Flow. |
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</p> |
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</body> |
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</html> |
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