Examples of org.jbpm.jpdl.el.VariableResolver

org.jbpm.jpdl.el.VariableResolver

This class is used to customize the way an ExpressionEvaluator resolves variable references at evaluation time. For example, instances of this class can implement their own variable lookup mechanisms, or introduce the notion of "implicit variables" which override any other variables. An instance of this class should be passed when evaluating an expression.

An instance of this class includes the context against which resolution will happen
@since 2.0

  {
    if (expression == null)
    {
      return null;
    }
    VariableResolver variableResolver = JbpmExpressionEvaluator.getUsedVariableResolver();
    if (variableResolver != null)
    {
      variableResolver = new MailVariableResolver(templateVariables, variableResolver);
    }
    return (String)JbpmExpressionEvaluator.evaluate(expression, executionContext, variableResolver, JbpmExpressionEvaluator.getUsedFunctionMapper());

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  public static Object evaluate(String expression, ExecutionContext executionContext) {
    Object result = null;
    
    ExecutionContext.pushCurrentContext(executionContext);
    try {
      VariableResolver usedResolver = null;
      
      if (variableResolver!=null) {
        usedResolver = variableResolver;
      } else {
        usedResolver = (VariableResolver) JbpmConfiguration.Configs.getObject("jbpm.variable.resolver");

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      templateProperties.put(property, XmlUtil.getContentText(element));
    }
  }
  
  String evaluate(String expression) {
    VariableResolver variableResolver = JbpmExpressionEvaluator.getUsedVariableResolver();
    if (variableResolver!=null) {
      variableResolver = new MailVariableResolver(templateVariables, variableResolver);
    }
    return (String) JbpmExpressionEvaluator.evaluate(expression, executionContext, variableResolver);
  }

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  String evaluate(String expression) {
    if (expression==null) {
      return null;
    }
    VariableResolver variableResolver = JbpmExpressionEvaluator.getUsedVariableResolver();
    if (variableResolver!=null) {
      variableResolver = new MailVariableResolver(templateVariables, variableResolver);
    }
    return (String) JbpmExpressionEvaluator.evaluate(expression, executionContext, variableResolver, null);
  }

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Related Classes of org.jbpm.jpdl.el.VariableResolver

org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator

org.jbpm.mail.Mail

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