org.apache.axiom.util.activation
Class DataSourceUtils
java.lang.Object
org.apache.axiom.util.activation.DataSourceUtils
public class DataSourceUtils
- extends Object
Contains utility methods to work with DataSource
objects.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
DataSourceUtils
public DataSourceUtils()
getSize
public static long getSize(DataSource ds)
- Determine the size of the data represented by a
DataSource
object.
The method will try to determine the size without reading the data source.
It will do so by looking for the SizeAwareDataSource
interface. In addition, it
supports some other well known data source implementations for which it is possible to
get the size of the data without reading it.
As noted in the documentation of the SizeAwareDataSource
, the returned value
may be an estimation that is not 100% accurate, and code using this method must be prepared
to receive more or less data from the data source.
- Parameters:
ds
- the data source
- Returns:
- (an estimation of) the size of the data or
-1
if the size is unknown
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