Package net.sf.saxon.expr

Interface Negatable

All Known Implementing Classes:
AndExpression, BooleanExpression, OrExpression, SystemFunctionCall, SystemFunctionCall.Optimized, ValueComparison
public interface Negatable
This interface is implemented by expressions that returns a boolean value, and returns an expression whose result is the negated boolean value

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    isNegatable(TypeHierarchy th)
    Check whether this specific instance of the expression is negatable
    Expression
    negate()
    Create an expression that returns the negation of this expression

  • Method Details

    • isNegatable

      boolean isNegatable(TypeHierarchy th)
      Check whether this specific instance of the expression is negatable
      Parameters:
      th - the type hierarchy cache
      Returns:
      true if it is

    • negate

      Expression negate()
      Create an expression that returns the negation of this expression
      Returns:
      the negated expression