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Java Source Code / Java Documentation » Library » Apache commons jexl 1.1 src » org.apache.commons.jexl   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.commons.jexl.ExpressionImpl ExpressionImpl class ExpressionImpl implements Expression(Code) Instances of ExpressionImpl are created by the ExpressionFactory , and this is the default implementation of the Expression interface. since:    1.0 author:    Geir Magnusson Jr. version:    $Id: ExpressionImpl.java 397111 2006-04-26 06:47:52Z dion $ Field Summary protected  String expression      Original expression. protected  SimpleNode node      The resulting AST we can call value() on. protected  List postResolvers      resolvers called after expression evaluation. protected  List preResolvers      resolvers called before expression evaluation. Constructor Summary   ExpressionImpl(String expr, SimpleNode ref)      do not let this be generally instantiated with a 'new'. Method Summary public  void addPostResolver(JexlExprResolver resolver)      public  void addPreResolver(JexlExprResolver resolver)      public  Object evaluate(JexlContext context)      public  String getExpression()      public  String toString()      Provide a string representation of the expression. protected  Object tryResolver(List resolverList, JexlContext context)      Tries the resolvers in the given resolverlist against the context. Field Detail expression protected String expression(Code) Original expression. This is just a 'snippet', not a valid statement (i.e. foo.bar() vs foo.bar(); node protected SimpleNode node(Code) The resulting AST we can call value() on. postResolvers protected List postResolvers(Code) resolvers called after expression evaluation. preResolvers protected List preResolvers(Code) resolvers called before expression evaluation. Constructor Detail ExpressionImpl ExpressionImpl(String expr, SimpleNode ref)(Code) do not let this be generally instantiated with a 'new'. Parameters:   expr - the expression. Parameters:   ref - the parsed expression. Method Detail addPostResolver public void addPostResolver(JexlExprResolver resolver)(Code) addPreResolver public void addPreResolver(JexlExprResolver resolver)(Code) evaluate public Object evaluate(JexlContext context) throws Exception(Code) getExpression public String getExpression()(Code) toString public String toString()(Code) Provide a string representation of the expression. the expression or blank if it's null. tryResolver protected Object tryResolver(List resolverList, JexlContext context)(Code) Tries the resolvers in the given resolverlist against the context. Parameters:   resolverList - list of JexlExprResolvers Parameters:   context - JexlContext to use for evauluation value (including null) or JexlExprResolver.NO_VALUE Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)