Get BLOB Data Method

This Get BLOB Data method reads data from a binary large object. It returns the data from the BLOB.

Format A

Blob.get(blobVar, offset, dataType)

You use format A for byte, integer, or float data.

Format B

Blob.get(blobVar, offset, bufferLen)

You use format B for byte data.

Format C

Blob.get(blobVar, offset, blobDescriptor dataDefinition)

You use format C for object data.

Arguments

The following table describes the arguments for the Get BLOB Data method.

Argument	Description
blobVar	The name of the binary large object that this method manipulates.
offset	The position in the BLOB that Siebel CRM uses to read the data.
dataType	An integer value that identifies the data format in the BLOB. The dataType argument must include one of the values you must use with a BLOB descriptor. For more information, see Values You Must Use with a blobDescriptor.
bufferLen	An integer that specifies the size of the buffer in bytes.
blobDescriptor dataDefinition	A blobDescriptor object that identifies the data format in the BLOB.

Example

The following example describes how to get values from a BLOB object:

function GetBlobVal()
{
   var a, b, c;
   a = "";
   b = 1234;
   c = 12345678;
   // Call a function to build the Blob
   var blob = BuildBlob(a, b, c);
   TheApplication().TraceOn("c:\\temp\\blob.txt","Allocation","All");
   // Get the values from the blob object
   // The first variable is string 
   var resultA = Blob.get(blob,0,1000);
   // The second variable is an integer
   var resultB = Blob.get(blob,1000,UWORD16);
   // The third variable has a type of float
   var resultC = Blob.get(blob,1002,FLOAT64);
   TheApplication().Trace(resultA);
   TheApplication().Trace(resultB);
   TheApplication().Trace(resultC);
}

function BuildBlob(a, b, c)
{
   var blob;
   a = "Blob Test Value From Function";
   var offset = Blob.put(blob, 0, a, 1000);
   offset = Blob.put(blob, offset, b*2, UWORD16);
   Blob.put(blob, offset, c*2, FLOAT64);
   return blob;
}