Examples of org.apache.derby.iapi.services.compiler.MethodBuilder.callMethod()

Package org.apache.derby.iapi.services.compiler

Class org.apache.derby.iapi.services.compiler.MethodBuilder

Examples of org.apache.derby.iapi.services.compiler.MethodBuilder.callMethod()

org.apache.derby.iapi.services.compiler.MethodBuilder.callMethod()
Call a method. The instance (receiver or reference) for non-static methods must be pushed by the caller. The instance (for non-static) and the arguments are popped of the stack, and the return value (if any) is pushed onto the stack.
The type needs to be one of:
- VMOpcode.INVOKESTATIC - call a static method
- VMOpcode.INVOKEVIRTUAL - call method declared in the class or super-class.
- VMOpcode.INVOKEINTERFACE - call a method declared in an interface
```
 static methods Stack ...,value* => [numArgs number of values will be popped] ...,return_value [void methods will not push a value] non-static methods Stack ...,ref,value* => [numArgs number of values will be popped] ...,return_value [void methods will not push a value] 
```
The type of the arguments to the methods must exactly match the declared types of the parameters to the methods. If a argument is of the incorrect type the caller must up cast it or down cast it. @param type type of method invocation @param declaringClass Class or interface the method is declared in. If it is a non-staticmethod call then if declaringClass is null, the declared type is taken to be the type of the reference that will be popped. @param methodName name of the method @param returnType class name or primitive type (including "void") of the return type of the method, can not be null. @param numArgs number of arguments to the method (can be 0).

          if (parameterType.endsWith("[]")) {


            // constructor  - setting up correct paramter type info
            MethodBuilder constructor = acb.getConstructor();
            acb.pushThisAsActivation(constructor);
            constructor.callMethod(VMOpcode.INVOKEINTERFACE, null,
                      "getParameterValueSet", ClassName.ParameterValueSet, 0);


            constructor.push(applicationParameterNumber);
            constructor.push(JDBC30Translation.PARAMETER_MODE_UNKNOWN);
            constructor.callMethod(VMOpcode.INVOKEINTERFACE, null,

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     * and adds it to exprFun
     */


    mb.pushThis();
    mb.getField((String)null, acb.getRowLocationScanResultSetName(), ClassName.CursorResultSet);
    mb.callMethod(VMOpcode.INVOKEINTERFACE, (String) null, "getRowLocation", ClassName.RowLocation, 0);




    acb.generateDataValue(mb, getTypeCompiler(), field);


    /*

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            constructor.callMethod(VMOpcode.INVOKEINTERFACE, null,
                      "getParameterValueSet", ClassName.ParameterValueSet, 0);


            constructor.push(applicationParameterNumber);
            constructor.push(JDBC30Translation.PARAMETER_MODE_UNKNOWN);
            constructor.callMethod(VMOpcode.INVOKEINTERFACE, null,
                      "setParameterMode", "void", 2);
            constructor.endStatement();
          }
        }
      }

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      }


      mbcm = mbnc;
    }


    mbcm.callMethod(VMOpcode.INVOKESTATIC, method.getDeclaringClass().getName(), methodName,
          actualMethodReturnType, nargs);




    if (returnsNullOnNullState != null)
    {

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        MethodBuilder constructor = acb.getConstructor();


        // constructor  - setting up correct paramter type info
        acb.pushThisAsActivation(constructor);
        constructor.callMethod(VMOpcode.INVOKEINTERFACE, null,
                  "getParameterValueSet", ClassName.ParameterValueSet, 0);


        // execute  - passing out parameters back.
        acb.pushThisAsActivation(mb);
        mb.callMethod(VMOpcode.INVOKEINTERFACE, null,

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            // Set the correct parameter nodes in the ParameterValueSet at constructor time.
            constructor.dup();
            constructor.push(applicationParameterNumber);
            constructor.push(parameterMode);
            constructor.callMethod(VMOpcode.INVOKEINTERFACE, null,
                    "setParameterMode", "void", 2);


            // Pass the value of the outparameters back to the calling code
            LocalField lf = outParamArrays[i];

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      */


      constructor.push(numberOfParameters); // first arg
      constructor.push(hasReturnParam); // second arg


      constructor.callMethod(VMOpcode.INVOKEVIRTUAL, ClassName.BaseActivation,
                  "setParameterValueSet", "void", 2);


      //?Xconstructor.callMethod(VMOpcode.INVOKEINTERFACE, (String) null, "getParameterValueSet",
      //?X          ClassName.ParameterValueSet, 2);

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      ** for missing parameters
      */
      MethodBuilder  executeMethod = acb.getExecuteMethod();


      executeMethod.pushThis();
      executeMethod.callMethod(VMOpcode.INVOKEVIRTUAL, ClassName.BaseActivation, "throwIfMissingParms", "void", 0);
    }
  }


  /**
   * Get the default value for the parameter.  Parameters

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    // declare field
    LocalField field = acb.newFieldDeclaration(Modifier.PRIVATE, type);


    /* Generate the call to the new method */
    mb.pushThis();
    mb.callMethod(VMOpcode.INVOKEVIRTUAL, (String) null, mbsq.getName(), type, 0);


    // generate: field = value (value is on stack)
    mb.setField(field);


    return field;

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          if (parameterType.endsWith("[]")) {


            // constructor  - setting up correct paramter type info
            MethodBuilder constructor = acb.getConstructor();
            acb.pushThisAsActivation(constructor);
            constructor.callMethod(VMOpcode.INVOKEINTERFACE, null,
                      "getParameterValueSet", ClassName.ParameterValueSet, 0);


            constructor.push(applicationParameterNumber);
            constructor.push(JDBC30Translation.PARAMETER_MODE_UNKNOWN);
            constructor.callMethod(VMOpcode.INVOKEINTERFACE, null,

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