visad.data.netcdf.in
Class CompositeStrategy

java.lang.Object
  visad.data.netcdf.in.Strategy
      visad.data.netcdf.in.CompositeStrategy

public final class CompositeStrategy
extends Strategy

Chains together import strategies for netCDF datasets.

Instances of this class are immutable.

Author:

Steven R. Emmerson

Field Summary

Fields inherited from class visad.data.netcdf.in.Strategy

DEFAULT, IN_MEMORY, MERGED_FILE_FLAT_FIELDS, UNMERGED_FILE_FLAT_FIELDS

Method Summary

DataImpl	getData(NetcdfAdapter adapter) Returns a VisAD data object corresponding to the netCDF dataset.
static Strategy	instance(Strategy[] strategies) Returns an import strategy.

Methods inherited from class java.lang.Object

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

Method Detail

instance

public static Strategy instance(Strategy[] strategies)

Returns an import strategy. The given strategies are tried in the order they appear in the array. This method returns when a strategy succeeds.

Parameters:

strategies - The import strategies to use.

Returns:

An import strategy.

Throws:

NullPointerException - if the argument is null.

IllegalArgumentException - if the number of strategies is 0.

getData

public DataImpl getData(NetcdfAdapter adapter)
                 throws IOException,
                        VisADException,
                        RemoteException,
                        BadFormException,
                        OutOfMemoryError

Returns a VisAD data object corresponding to the netCDF dataset.

Specified by:

getData in class Strategy

Parameters:

adapter - The netCDF-to-VisAD adapter.

Returns:

The top-level, VisAD data object of the netCDF dataset.

Throws:

VisADException - if a problem occurs in core VisAD -- probably because a VisAD object couldn't be created.

IOException - if a data access I/O failure occurs.

BadFormException - if the netCDF dataset doesn't conform to conventions implicit in constructing View.

OutOfMemoryError - if the netCDF dataset couldn't be imported due to insufficient memory.

RemoteException - if a Java RMI failure occurs.