Class ClosureManager


  • public final class ClosureManager
    extends java.lang.Object
    Allocates and manages the lifecycle of native closures (aka callbacks)
    • Field Detail

      • poolMap

        private final java.util.Map<CallContext,​java.lang.ref.Reference<ClosurePool>> poolMap
        ClosurePool instances are linked via a SoftReference in the lookup map, so when all closure instances that that were allocated from the ClosurePool have been reclaimed, and there is memory pressure, the native closure pool can be freed. This will allow the CallContext instance to also be collected if it is not strongly referenced elsewhere, and ejected from the CallContextCache
    • Constructor Detail

      • ClosureManager

        private ClosureManager()
        Constructs a ClosureManager
    • Method Detail

      • getInstance

        public static ClosureManager getInstance()
        Gets the global instance of the ClosureManager
        Returns:
        An instance of a ClosureManager
      • newClosure

        public final Closure.Handle newClosure​(Closure closure,
                                               Type returnType,
                                               Type[] parameterTypes,
                                               CallingConvention convention)
        Wraps a java object that implements the Closure interface in a native closure.
        Parameters:
        closure - The java object to be called when the native closure is invoked.
        returnType - The return type of the closure.
        parameterTypes - The parameter types of the closure.
        convention - The calling convention of the closure.
        Returns:
        A new Closure.Handle instance.
      • newClosure

        public final Closure.Handle newClosure​(Closure closure,
                                               CallContext callContext)
        Wraps a java object that implements the Closure interface in a native closure.
        Parameters:
        closure - The java object to be called when the native closure is invoked.
        callContext - The call context (return type, param types, convention) of the Closure
        Returns:
        A new Closure.Handle instance.