Package org.apache.commons.jexl3.internal

Class Closure

java.lang.Object
org.apache.commons.jexl3.internal.Script
org.apache.commons.jexl3.internal.Closure
All Implemented Interfaces:
JexlExpression, JexlScript
public class Closure extends Script
A Script closure.

  • Field Details

    • frame

      protected final Frame frame
      The frame.

    • options

      protected final JexlOptions options
      The options.

  • Constructor Details

    • Closure

      protected Closure(Interpreter theCaller, ASTJexlLambda lambda)
      Creates a closure.
      Parameters:
      theCaller - the calling interpreter
      lambda - the lambda

    • Closure

      protected Closure(Script base, Object[] args)
      Creates a curried version of a script.
      Parameters:
      base - the base script
      args - the script arguments

  • Method Details

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Script

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Script

    • getUnboundParameters

      public String[] getUnboundParameters()
      Description copied from interface: JexlScript
      Gets this script unbound parameters.

      Parameters that haven't been bound by a previous call to curry().

      Specified by:
      getUnboundParameters in interface JexlScript
      Overrides:
      getUnboundParameters in class Script
      Returns:
      the parameters or null

    • setCaptured

      public void setCaptured(int symbol, Object value)
      Sets the captured index of a given symbol, ie the target index of a parent captured symbol in this closure's frame.

      This is meant to allow a locally defined function to "see" and call itself as a local (captured) variable; in other words, this allows recursive call of a function.

      Parameters:
      symbol - the symbol index (in the caller of this closure)
      value - the value to set in the local frame

    • evaluate

      public Object evaluate(JexlContext context)
      Description copied from interface: JexlExpression
      Evaluates the expression with the variables contained in the supplied JexlContext.
      Specified by:
      evaluate in interface JexlExpression
      Overrides:
      evaluate in class Script
      Parameters:
      context - A JexlContext containing variables.
      Returns:
      The result of this evaluation

    • execute

      public Object execute(JexlContext context)
      Description copied from interface: JexlScript
      Executes the script with the variables contained in the supplied JexlContext.
      Specified by:
      execute in interface JexlScript
      Overrides:
      execute in class Script
      Parameters:
      context - A JexlContext containing variables.
      Returns:
      The result of this script, usually the result of the last statement.

    • execute

      public Object execute(JexlContext context, Object... args)
      Description copied from interface: JexlScript
      Executes the script with the variables contained in the supplied JexlContext and a set of arguments corresponding to the parameters used during parsing.
      Specified by:
      execute in interface JexlScript
      Overrides:
      execute in class Script
      Parameters:
      context - A JexlContext containing variables.
      args - the arguments
      Returns:
      The result of this script, usually the result of the last statement.

    • callable

      public Script.Callable callable(JexlContext context, Object... args)
      Description copied from class: Script
      Creates a Callable from this script.

      This allows to submit it to an executor pool and provides support for asynchronous calls.

      The interpreter will handle interruption/cancellation gracefully if needed.

      Specified by:
      callable in interface JexlScript
      Overrides:
      callable in class Script
      Parameters:
      context - the context
      args - the script arguments
      Returns:
      the callable