The xs:hexBinary type of element in the XML schema is for writing an array of N count bytes. Elements of this type have the required "oda:countBytes = "name | value" " attribute. The element that is referenced by "oda:countBytes" (if it does not contain a number) must be marked with the oda: "isCondition = "" " attribute.

An xs:hexBinary element can have the following attributes:

• oda:countBytes="name | value" — Indicates the length value of the written byte array or the name of the element whose number (integer) was placed in the cache. For example:

  
  pFiler->wrInt16(size);
  pFiler->wrBytes (buffer, size);
  pFiler->wrString(str);
  pFiler->wrInt32(element);
  pFiler->wrBytes(buffer_2, 10);
  pFiler->wrInt8(bSize);
  pFiler->wrBytes(buffer_3, bSize*size);
  
  <xs:element name="Size" type="xs:short" oda:isCondition=""/>
  <xs:element name="binaryArray" type="xs:hexBinary" oda:countBytes="Size"/>
  <xs:element name="str" type="xs:string"/>
  <xs:element name="someElement" type="xs:int"/>
  <xs:element name="binaryData" type="xs:hexBinary" oda:countBytes="10"/>
  <xs:element name="bSize" type="xs:byte " oda:isCondition=""/>
  <xs:element name="binaryData_2" type="xs:hexBinary" oda:countBytes="Size* bSize "/>
    

• oda:reduceIn="numeric value" — Reduces the value taken from the "name" attribute (or from the cache by key) by the number indicated in "oda:reduceIn".
• oda:increaseIn="numeric value" — Increases the value taken from the "name" attribute (or from the cache by key) by the number indicated in "oda:increaseIn". For example:

  
  int bitLen = pFiler->rdInt32();
  int len = bitLen / 8;
  pFiler->rdBytes(tmpData.asArrayPtr(), len);
  int bitLen_2 = pFiler->rdInt32();
  int len_2 = bitLen_2 * 2;
  pFiler->rdBytes(tmpData.asArrayPtr(), len_2);
  
  <xs:element name=" bitLen" type="xs:int" oda:isCondition=""/>
  <xs:element name="tmpData1" type="xs:hexBinary" oda:countBytes=" bitLen" oda:reduceIn="8"/>
  <xs:element name=" bitLen_2" type="xs:int" oda:isCondition=""/>
  <xs:element name="tmpData2" type="xs:hexBinary" oda:countBytes=" bitLen_2" oda:increaseIn="2"/>
    

See Also

Working with the XML Scheme for Revision Control