Accessing Input Variables

The signatures of the methods you can call to access input variables are:

public InputValue getInputValue()
   throws DBException;
public InputValue getInputValueWithWarning() 
   throws DBException, RequiredParameterMissingException;

To retrieve optional input variables, call getInputValue. A null value is returned if either an input variable is not provided, or if the session variable that the input variable is assigned to does not exist.

InputValue iv = optionalVar.getInputValue();  
  
if (iv != null) {        
  retrieve the value
}

To retrieve mandatory input variables, call getInputValueWithWarning. The exception RequiredParameterMissingException is raised if either an input variable is not provided, or if the session variable that the input variable is assigned to does not exist. You can retrieve all mandatory input variables in the same try/catch block.

try {           
  Long id = mandatoryIdVar.getInputValueWithWarning().getLong();     
  Integer count = mandatoryCountVar.getInputValueWithWarning().getInt();
}    
catch (RequiredParameterMissingException rex) {
  log.error(rex.getMessage());
  return continueFail();
}

Both methods that access input variables return the InputValue class. InputValue methods return values that you enter in the state editor when you configure an input attribute; return values can be either constants or session-variable names:

• InputValue.getString();
• InputValue.getString(int size);
• InputValue.getLong();
• InputValue.getInt();
• InputValue.getBoolean();
• InputValue.getDouble();
• InputValue.getMsisdn();