Examples of net.mitza.rel.parser.Parser

net.mitza.rel.parser.Parser
A parser for mathematical and logical expressions. The parser class defines a method parseExpression() which takes a string and returns an ExpressionNode that holds a representation of the mathematical expression. The method parseCondition() parses a logical expression to a 'true' or 'false' value. Parsing is implemented in the form of a recursive descent parser.

  public Object evaluate(String expression) {
    if (expression == null) {
      return "";
    }


    Parser parser = new Parser(context);
    ExpressionNode expressionNode = parser.parseExpression(expression);
    return expressionNode.getValue();
  }

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  public boolean evaluate(String condition) {
    if (condition == null) {
      return false;
    }


    Parser parser = new Parser(context);
    ExpressionNode expressionNode = parser.parseCondition(condition);
    return expressionNode.getBooleanValue();
  }

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Related Classes of net.mitza.rel.parser.Parser

net.mitza.rel.base.ExpressionComparator

net.mitza.rel.base.ExpressionEvaluator

net.mitza.rel.parser.expression.AdditionExpressionNode

net.mitza.rel.parser.expression.AndExpressionNode

net.mitza.rel.parser.expression.ComparatorExpressionNode

net.mitza.rel.parser.expression.ConstantExpressionNode

net.mitza.rel.parser.expression.ExponentiationExpressionNode

net.mitza.rel.parser.expression.ExpressionNode

net.mitza.rel.parser.expression.FunctionExpressionNode

net.mitza.rel.parser.expression.MultiplicationExpressionNode

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