visad.data.netcdf.in

Class Strategy

java.lang.Object

visad.data.netcdf.in.Strategy

Direct Known Subclasses:

CompositeStrategy, FileStrategy, InMemoryStrategy

public abstract class Strategy
extends Object

A strategy for importing a netCDF dataset.

Author:

Steven R. Emmerson

Field Summary

Fields

Modifier and Type	Field and Description
static Strategy	DEFAULT The default import strategy.
static Strategy	IN_MEMORY An import strategy that first tries the InMemoryStrategy strategy and then tries the MERGED_FILE_FLAT_FIELDS strategy.
static Strategy	MERGED_FILE_FLAT_FIELDS An import strategy that first tries the FileStrategy strategy and then tries the UNMERGED_FILE_FLAT_FIELDS strategy.
static Strategy	UNMERGED_FILE_FLAT_FIELDS An import strategy that only tries the MaxFileFieldStrategy strategy.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Strategy() Constructs from nothing.

Method Summary

Modifier and Type	Method and Description
abstract DataImpl	getData(NetcdfAdapter adapter) Returns a VisAD data object corresponding to the netCDF dataset.

Methods inherited from class java.lang.Object

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

Field Detail

UNMERGED_FILE_FLAT_FIELDS

public static final Strategy UNMERGED_FILE_FLAT_FIELDS

An import strategy that only tries the MaxFileFieldStrategy strategy.

MERGED_FILE_FLAT_FIELDS

public static final Strategy MERGED_FILE_FLAT_FIELDS

An import strategy that first tries the FileStrategy strategy and then tries the UNMERGED_FILE_FLAT_FIELDS strategy.

IN_MEMORY

public static final Strategy IN_MEMORY

An import strategy that first tries the InMemoryStrategy strategy and then tries the MERGED_FILE_FLAT_FIELDS strategy.

DEFAULT

public static final Strategy DEFAULT

The default import strategy. The details of this strategy are unspecified and subject to change. Currently, it is identical to the MERGED_FILE_FLAT_FIELDS strategy.

Constructor Detail

Strategy

protected Strategy()

Constructs from nothing.

Method Detail

getData

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

Returns a VisAD data object corresponding to the netCDF dataset.

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 into memory.

RemoteException - if a Java RMI failure occurs.