ucar.nc2.ncml
Class Aggregation.DatasetProxyReader

java.lang.Object
  ucar.nc2.ncml.Aggregation.DatasetProxyReader

All Implemented Interfaces:

ProxyReader

Enclosing class:

Aggregation

protected class Aggregation.DatasetProxyReader
extends java.lang.Object
implements ProxyReader

Method Summary

Array	read(Variable mainV, CancelTask cancelTask) Read all the data for a Variable.
Array	read(Variable mainV, CancelTask cancelTask, java.util.List section) Read a section of the data for a Variable and return a memory resident Array.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

read

public Array read(Variable mainV,
                  CancelTask cancelTask)
           throws java.io.IOException

Description copied from interface: ProxyReader

Read all the data for a Variable. The Array has the same element type and shape as the Variable.

Specified by:

read in interface ProxyReader

Parameters:

mainV - the Variable

cancelTask - allow user to cancel, may be null.

Returns:

memory resident Array containing the data. Will have same shape as the Variable.

Throws:

java.io.IOException - on error

read

public Array read(Variable mainV,
                  CancelTask cancelTask,
                  java.util.List section)
           throws java.io.IOException,
                  InvalidRangeException

Description copied from interface: ProxyReader

Read a section of the data for a Variable and return a memory resident Array. The Array has the same element type as the Variable, and the requested shape. Note that this does not do rank reduction, so the returned Array has the same rank as the Variable. Use Array.reduce() for rank reduction.

Specified by:

read in interface ProxyReader

Parameters:

mainV - the Variable

cancelTask - allow user to cancel, may be null.

section - list of Range specifying the section of data to read. Must be null or same rank as variable. If list is null, assume all data. Each Range corresponds to a Dimension. If the Range object is null, it means use the entire dimension.

Returns:

memory resident Array containing the data. Will have same shape as the Variable.

Throws:

java.io.IOException - on error

InvalidRangeException - if section is incorrect rank or shape.