public class CoreOperationNegate extends CoreOperation
Expression for the operation unary "-".Expression.PointerIterator, Expression.ValueIteratorADD_PRECEDENCE, AND_PRECEDENCE, COMPARE_PRECEDENCE, MULTIPLY_PRECEDENCE, NEGATE_PRECEDENCE, OR_PRECEDENCE, RELATIONAL_EXPR_PRECEDENCE, UNION_PRECEDENCENOT_A_NUMBER, ONE, ZERO| Constructor and Description |
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CoreOperationNegate(Expression arg)
Create a new CoreOperationNegate.
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| Modifier and Type | Method and Description |
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Object |
computeValue(EvalContext context)
Evaluates the expression.
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protected int |
getPrecedence()
Computes the precedence of the operation.
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String |
getSymbol()
Returns the XPath symbol for this operation, e.g. "+", "div", etc.
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protected boolean |
isSymmetric()
Returns true if the operation is not sensitive to the order of arguments,
e.g. "=", "and" etc, and false if it is, e.g.
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compute, toStringcomputeContextDependent, getArgumentsisContextDependent, iterate, iteratePointerspublic CoreOperationNegate(Expression arg)
arg - the Expression to negatepublic Object computeValue(EvalContext context)
ExpressioncomputeValue in class CoreOperationcontext - evaluation contextprotected int getPrecedence()
CoreOperationgetPrecedence in class CoreOperationprotected boolean isSymmetric()
CoreOperationisSymmetric in class CoreOperationpublic String getSymbol()
CoreOperationgetSymbol in class CoreOperationCopyright © 2001–2015 The Apache Software Foundation. All rights reserved.