setExpression(DataStoreBuffer buf, String expression) Binds the component to a DataStore expression
Parameters: buf - The DataStore to bind to Parameters: expression - The DataStore expression to compute.
Binds the component to a DataStore expression
Parameters: buf - The DataStore to bind to Parameters: expression - The DataStore expression to compute. It can return a url string or a byte array. throws: DataStoreException - if the expression is invalid
Binds the component to a DataStore expression. It can return a url string or a byte array.
Parameters: buf - The DataStore to bind to Parameters: expression - The DataStore expression to compute throws: DataStoreException - if the expression is invalid