Release 10.1A: OpenEdge Development:
Java Open Clients

Passing INPUT parameters

Passing an INPUT parameter requires several steps to provide a value as input to an application service procedure or user-defined function.

To pass an INPUT parameter:

Create and initialize a variable for the parameter of the correct Java data type (see the "Creating variables for parameters" section).
Add the parameter to a ParamArray object (see the "Setting up a parameter array" section).
Run the procedure or user-defined function (see the "Running procedures and user-defined functions" section).

For example, to pass an INPUT integer parameter that does not support the Unknown value (?), you might do the following:

Passing an INPUT parameter using the Java OpenAPI

// Connect to the AppServer OpenAppObject dynAO = new OpenAppObject("asbroker1"); // Define and initialize the variable for the input parameter int CustomerNumber = 33; // Create the ParamArray ParamArray parms = new ParamArray(1); // Add the input parameter to the ParamArray parms.addInteger(0, CustomerNumber, ParamArrayMode.INPUT); // Run the procedure or user-defined function dynAO.runProc("AddCustomer.p", parms); ...

To pass an INPUT integer parameter that supports the Unknown value (?), you might do the following:

Passing an INPUT parameter as the Unknown value (?) using the Java OpenAPI

// Connect to the AppServer OpenAppObject dynAO = new OpenAppObject("asbroker1"); // Define and initialize the variable for the input parameter Integer CustomerNumber = new Integer(33); // Code possibly affecting the value of CustomerNumber ... //Set the Integer value for the input parameter //to null or an int based on the variable value if (CustomerNumber.intValue() > 33)    CustomerNumber = null; // Create the ParamArray ParamArray parms = new ParamArray(1); // Add the input parameter to the ParamArray parms.addInteger(0, CustomerNumber, ParamArrayMode.INPUT); // Run the procedure or user-defined function dynAO.runProc("AddCustomer.p", parms); ...