Datatype mappings

The EJB Proxy generator maps datatypes between Java and PowerBuilder as shown in the following table:

Java type	PowerBuilder type
short	Integer
int	Long
long	LongLong
float	Real
double	Double
byte	Int
char (16-bit unsigned)	Char
java.lang.String	String
boolean	Boolean
java.util.Date	Datetime
Array of primitive type	Parameters: Array of primitive type Return values: Any
Array of java.lang.String or java.util.Date objects	Parameters: Array of String or DateTime Return values: Any
Array of arrays	Any
Java class arguments or return values	PowerBuilder proxies of Java classes
Other	Any

Different precision for double

A PowerBuilder double has 15 digits of precision (1.79769313486231E+308) and a Java double has 17 digits (1.7976931348623157e+308). For EJB client applications, the precision of a double is limited to the PowerBuilder range (2.2250738585073E-308 to 1.79769313486231E+308).

Arrays of arrays

Unlike Java, PowerBuilder does not support unbounded multidimensional arrays. If a Java method takes an array of arrays as a parameter, the corresponding PowerBuilder proxy method takes a parameter of type Any. To call the method in PowerBuilder, declare a PowerBuilder array with the same dimensions as the Java array, and pass the array as the parameter.