Package org.mvel2

Class MVELRuntime

  • public class MVELRuntime
extends java.lang.Object
    This class contains the runtime for running compiled MVEL expressions.

    • Constructor Summary

      Constructors 
      Constructor Description
      MVELRuntime()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void clearAllBreakpoints()
      Reset all the currently registered breakpoints.
      private static void ensureDebuggerContext()
      Ensures that debugger context exists.
      static java.lang.Object execute​(boolean debugger, CompiledExpression expression, java.lang.Object ctx, VariableResolverFactory variableFactory)
      Main interpreter.
      static boolean hasBreakpoints()
      Tests whether or not breakpoints have been declared.
      static boolean hasDebuggerContext()
      Tests whether or not a debugger context exist.
      static void registerBreakpoint​(java.lang.String source, int line)
      Register a debugger breakpoint.
      static void removeBreakpoint​(java.lang.String source, int line)
      Remove a specific breakpoint.
      static void resetDebugger()
      Reset all information registered in the debugger, including the actual attached Debugger and registered breakpoints.
      static void setThreadDebugger​(Debugger debugger)
      Sets the Debugger instance to handle breakpoints.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • debuggerContext

        private static java.lang.ThreadLocal<DebuggerContext> debuggerContext

    • Constructor Detail

      • MVELRuntime

        public MVELRuntime()

    • Method Detail

      • execute

        public static java.lang.Object execute​(boolean debugger,
                                       CompiledExpression expression,
                                       java.lang.Object ctx,
                                       VariableResolverFactory variableFactory)
        Main interpreter.
        Parameters:
        debugger - Run in debug mode
        expression - The compiled expression object
        ctx - The root context object
        variableFactory - The variable factory to be injected
        Returns:
        The resultant value
        See Also:
        MVEL

      • registerBreakpoint

        public static void registerBreakpoint​(java.lang.String source,
                                      int line)
        Register a debugger breakpoint.
        Parameters:
        source - - the source file the breakpoint is registered in
        line - - the line number of the breakpoint

      • removeBreakpoint

        public static void removeBreakpoint​(java.lang.String source,
                                    int line)
        Remove a specific breakpoint.
        Parameters:
        source - - the source file the breakpoint is registered in
        line - - the line number of the breakpoint to be removed

      • hasDebuggerContext

        public static boolean hasDebuggerContext()
        Tests whether or not a debugger context exist.
        Returns:
        boolean

      • ensureDebuggerContext

        private static void ensureDebuggerContext()
        Ensures that debugger context exists.

      • clearAllBreakpoints

        public static void clearAllBreakpoints()
        Reset all the currently registered breakpoints.

      • hasBreakpoints

        public static boolean hasBreakpoints()
        Tests whether or not breakpoints have been declared.
        Returns:
        boolean

      • setThreadDebugger

        public static void setThreadDebugger​(Debugger debugger)
        Sets the Debugger instance to handle breakpoints. A debugger may only be registered once per thread. Calling this method more than once will result in the second and subsequent calls to simply fail silently. To re-register the Debugger, you must call resetDebugger()
        Parameters:
        debugger - - debugger instance

      • resetDebugger

        public static void resetDebugger()
        Reset all information registered in the debugger, including the actual attached Debugger and registered breakpoints.