Set<type>

PowerBuilder Native Interface

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IPB_Value interface:

Set<type> method

Description

Set of datatype-specific methods that set the value of the IPB_Value instance.

Syntax

SetArray ( pbarray array )

SetBlob( pbblob blob )

SetBool ( pbboolean boolean )

SetByte ( pbbyte byte )

SetChar ( pbchar char )

SetDate ( pbdate date )

SetDateTime( pbdatetime datetime )

SetDecimal ( pbdecimal dec)

SetDouble ( pbdouble double)

SetInt ( pbint int )

SetLong( pblong long )

SetLongLong( pblonglong longlong )

SetObject ( pbobject object )

SetPBString ( pbstring string)

SetReal( pbreal real )

SetString ( LPCTSTR string)

SetTime( pbtime time )

SetUint( pbuint uint )

SetUlong ( pbulong ulong )

Return Values

PBXRESULT.

Examples

This example uses the IPB_Value SetPBString method to set values in PBCallInfo. It also uses the IPB_Session SetString method to set the ret_val string to the return value in the PBCallInfo structure:

pbclass cls;
pbmethodID mid;
PBCallInfo* ci = new PBCallInfo;
pbstring ret_val;
LPCTSTR pStr;
 
cls= Session -> GetClass(myobj);
if (isAny) 
   mid=Session-> GetMethodID(cls, "uf_any_byvalue",
      PBRT_FUNCTION, "AAAAA");
else
   mid=Session-> GetMethodID(cls, "uf_string_byvalue",
      PBRT_FUNCTION, "SSSSS");
Session-> InitCallInfo(cls, mid, ci);
 
// Call IPB_Value SetPBString method
ci-> pArgs -> GetAt(0) -> SetPBString(s_low);
ci-> pArgs -> GetAt(1) -> SetPBString(s_mid);
ci-> pArgs -> GetAt(2) -> SetPBString(s_high);
pStr = Session -> GetString(s_null);
 
if (pStr != 0)
{
   if (strcmp(pStr, "null") == 0 )
      ci-> pArgs -> GetAt(3) -> SetToNull();
   else
      ci-> pArgs -> GetAt(3) -> SetPBString(s_null);
}
 
Session -> InvokeObjectFunction(myobj, mid, ci);
ret_val = Session -> NewString("");


// Call IPB_Session SetString method
Session -> SetString(ret_val, Session->GetString
               (ci->returnValue->GetString()));
Session -> FreeCallInfo(ci);
delete ci;
return ret_val;

Usage

These methods automatically set the value of IPB_Value to not null and return an error if the datatype to be set does not match the existing datatype. The error code is PBX_E_MISMATCHED_DATA_TYPE. If the value is a read-only argument, it returns the error PBX_E_READONLY_ARGS. If the datatype is string or blob, a deep copy is performed. The existing value is destroyed first, and then the contents of the argument are copied into a new value.