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com.javonet.api

Class NNull

  • java.lang.Object
    • com.javonet.api.NNull

  • public class NNull
    extends java.lang.Object
    A class that represents type specific NULL value.

    This class should be used in case when ambiguous invocation error occurs. Or when you want to pass as value null of specific .NET type.

    Ambiguous invocation error can occur if there is more then one method on .NET side with the same method name and the same number of class type parameters and you want to invoce one of them passing null values as parameters. In this case .NET is not able to determine which method to invoce unless type-specific NULL is provided.

    Usage

    On .NET side

      MethodA(ClassA arg1, ClassB arg2)
     MethodB(ClassC arg1, ClassD arg2); 
     

    How to invoke MethodA passing null values as parameters from JAVA using Javonet type-specific NULL value:

      obj.MethodA(new NNull("ClassA"),new NNull("ClassB")); 
     

    .NET equivalent:

      obj.MethodA((ClassA)null,(ClassB)null); 
     
    Version:
    1.1


    • Constructor Summary

      Constructors 
      Constructor and Description
      NNull(NType type)

      Creates new instance of type-specific NULL value using NType.
      NNull(java.lang.String typeName)

      Creates new instance of type-specific NULL value using type name in string.



    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method and Description
      boolean equals(java.lang.Object obj) 
      NType getType()

      Returns NType object associated with .NET type representing this NULL value.
      java.lang.String getTypeName()

      Returns type name of this type specific NULL value.
      int hashCode() 


      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, toString, wait, wait, wait



    • Constructor Detail



      • NNull

        public NNull(NType type)
        Creates new instance of type-specific NULL value using NType.
        Parameters:
        typeName – NType of type to which null value should be casted on .NET side (yourType)null;



      • NNull

        public NNull(java.lang.String typeName)
        Creates new instance of type-specific NULL value using type name in string.
        Parameters:
        typeName – Type name or Full type name with namespace of type to which null value should be casted on .NET side (yourType)null;



    • Method Detail



      • equals

        public boolean equals(java.lang.Object obj)
        Overrides:
        equals in class java.lang.Object



      • getType

        public NType getType()
        Returns NType object associated with .NET type representing this NULL value.
        Returns:
        NType object associated with .NET type representing this NULL value.



      • getTypeName

        public java.lang.String getTypeName()
        Returns type name of this type specific NULL value.
        Returns:
        Type name or Full type name with namespaces



      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object