visad.data.dods
Class GridVariableAdapter

java.lang.Object
  visad.data.dods.Adapter
      visad.data.dods.VariableAdapter
          visad.data.dods.GridVariableAdapter

public class GridVariableAdapter
extends VariableAdapter

Provides support for adapting DODS DGrid variables to the VisAD data-import context.

Instances are immutable.

Author:

Steven R. Emmerson

Nested Class Summary

protected class

GridVariableAdapter.GridAccessor Provides support for accessing a DODS DGrid as a VisAD FileFlatField.

Method Summary

DataImpl	data(dods.dap.DGrid grid, boolean copy) Returns the VisAD DataImpl corresponding to a DODS DGrid.
MathType	getMathType() Returns the VisAD MathType of this instance.
SimpleSet[]	getRepresentationalSets(boolean copy) Returns the VisAD Sets that will be used to represent this instances data values in the range of a VisAD FileFlatField.
static GridVariableAdapter	gridVariableAdapter(dods.dap.DGrid grid, dods.dap.DAS das, VariableAdapterFactory factory) Returns an instance of this class corresponding to a DODS DGrid.

Methods inherited from class visad.data.dods.VariableAdapter

data, data, data, data, data, data, data, data, data, data, data, data, data, data, mathType

Methods inherited from class visad.data.dods.Adapter

attributeTable, attributeTable, getCacheStrategy, isFlat, mathType, realType, realType, realType, realType, scalarName

Methods inherited from class java.lang.Object

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

Method Detail

gridVariableAdapter

public static GridVariableAdapter gridVariableAdapter(dods.dap.DGrid grid,
                                                      dods.dap.DAS das,
                                                      VariableAdapterFactory factory)
                                               throws VisADException,
                                                      RemoteException

Returns an instance of this class corresponding to a DODS DGrid.

Parameters:

grid - The DODS variable. Only the DODS metadata is used: the variable needn't have any actual data.

das - The DODS DAS in which the attribute table for the DODS variable is embedded.

factory - A factory for creating variable adapters.

Returns:

An instance of this class corresponding to the input arguments.

Throws:

VisADException - VisAD failure.

RemoteException - Java RMI failure.

getMathType

public MathType getMathType()

Returns the VisAD MathType of this instance.

Specified by:

getMathType in class VariableAdapter

Returns:

The MathType of this instance.

getRepresentationalSets

public SimpleSet[] getRepresentationalSets(boolean copy)

Returns the VisAD Sets that will be used to represent this instances data values in the range of a VisAD FileFlatField.

Overrides:

getRepresentationalSets in class VariableAdapter

Parameters:

copy - If true, then the array is cloned.

Returns:

The VisAD Sets used to represent the data values in the range of a FlatField. WARNING: Modify only under duress.

data

public DataImpl data(dods.dap.DGrid grid,
                     boolean copy)
              throws VisADException,
                     RemoteException

Returns the VisAD DataImpl corresponding to a DODS DGrid.

Overrides:

data in class VariableAdapter

Parameters:

grid - The DODS variable to have the corresponding VisAD data object returned. The variable must be compatible with the variable used to construct this instance.

copy - If true, then data values are copied.

Returns:

The VisAD data object of this instance. The class of the object will be FileFlatField, FlatField, or FieldImpl.

Throws:

VisADException - VisAD failure. Possibly the variable wasn't compatible with the variable used to construct this instance.

RemoteException - Java RMI failure.