Interface Script

All Known Implementing Classes:
ExpressionImpl
public interface Script

A JEXL Script.

A script is some valid JEXL syntax to be executed with a given set of JexlContext variables.

A script is a group of statements, separated by semicolons.

The statements can be blocks (curly braces containing code), Control statements such as if and while as well as expressions and assignment statements.

Since:
1.1

  • Method Details

    • execute

      Object execute(JexlContext context)
      Executes the script with the variables contained in the supplied JexlContext.
      Parameters:
      context - A JexlContext containing variables.
      Returns:
      The result of this script, usually the result of the last statement.

    • execute

      Object execute(JexlContext context, Object... args)
      Executes the script with the variables contained in the supplied JexlContext and a set of arguments corresponding to the parameters used during parsing.
      Parameters:
      context - A JexlContext containing variables.
      args - the arguments
      Returns:
      The result of this script, usually the result of the last statement.
      Since:
      2.1

    • getText

      String getText()
      Returns the text of this Script.
      Returns:
      The script to be executed.

    • getParameters

      String[] getParameters()
      Gets this script parameters.
      Returns:
      the parameters or null
      Since:
      2.1

    • getLocalVariables

      String[] getLocalVariables()
      Gets this script local variables.
      Returns:
      the local variables or null
      Since:
      2.1

    • getVariables

      Set<List<String>> getVariables()
      Gets this script variables.

      Note that since variables can be in an ant-ish form (ie foo.bar.quux), each variable is returned as a list of strings where each entry is a fragment of the variable ({"foo", "bar", "quux"} in the example.

      Returns:
      the variables or null
      Since:
      2.1

    • callable

      Callable<Object> callable(JexlContext context)
      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.

      Parameters:
      context - the context
      Returns:
      the callable
      Since:
      2.1

    • callable

      Callable<Object> callable(JexlContext context, Object... args)
      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.

      Parameters:
      context - the context
      args - the script arguments
      Returns:
      the callable
      Since:
      2.1