ucar.nc2.ncml
Class AggregationTiled

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

All Implemented Interfaces:

ProxyReader

public class AggregationTiled
extends Aggregation

Tiled Aggregation.

Since:

Aug 16, 2007

Author:

caron

Nested Class Summary

Nested classes/interfaces inherited from class ucar.nc2.ncml.Aggregation

Aggregation.DatasetProxyReader, Aggregation.Type, Aggregation.TypicalDataset

Field Summary

Fields inherited from class ucar.nc2.ncml.Aggregation

cacheDirty, datasetManager, datasets, dateFormatMark, debugDateParse, debugOpenFile, debugProxy, debugRead, debugSyncDetail, dimName, diskCache2, enhance, executor, explicitDatasets, formatter, isDate, logger, ncDataset, spiObject, timeUnitsChange, type, typicalDatasetMode

Constructor Summary

AggregationTiled(NetcdfDataset ncd, java.lang.String dimName, java.lang.String recheckS)

Method Summary

protected void	buildDataset(CancelTask cancelTask) Call this to build the dataset objects
protected ucar.nc2.ncml.Aggregation.Dataset	makeDataset(java.lang.String cacheName, java.lang.String location, java.lang.String ncoordS, java.lang.String coordValueS, java.lang.String sectionSpec, java.util.EnumSet<NetcdfDataset.Enhance> enhance, FileFactory reader) Dataset factory, so subclasses can override
Array	read(Variable mainv, CancelTask cancelTask) Read an aggregation variable: A variable whose data spans multiple files.
Array	read(Variable mainv, Section wantSection, CancelTask cancelTask) Read a section of an aggregation variable.
protected void	rebuildDataset() Call this when rescan has found changed datasets

Methods inherited from class ucar.nc2.ncml.Aggregation

addDataset, addDatasetScan, addExplicitDataset, close, closeDatasets, findVariable, finish, getDatasets, getDimensionName, getLocation, getType, getTypicalDataset, makeDatasets, persistRead, persistWrite, setDatasetAcquireProxy, setExecutor, setPersistenceCache, setTypicalDatasetMode, sync, syncExtend

Methods inherited from class java.lang.Object

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

Constructor Detail

AggregationTiled

public AggregationTiled(NetcdfDataset ncd,
                        java.lang.String dimName,
                        java.lang.String recheckS)

Method Detail

buildDataset

protected void buildDataset(CancelTask cancelTask)
                     throws java.io.IOException

Description copied from class: Aggregation

Call this to build the dataset objects

Specified by:

buildDataset in class Aggregation

Parameters:

cancelTask - maybe cancel

Throws:

java.io.IOException - on read error

rebuildDataset

protected void rebuildDataset()
                       throws java.io.IOException

Description copied from class: Aggregation

Call this when rescan has found changed datasets

Specified by:

rebuildDataset in class Aggregation

Throws:

java.io.IOException - on read error

read

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

Description copied from class: Aggregation

Read an aggregation variable: A variable whose data spans multiple files.

Specified by:

read in interface ProxyReader

Specified by:

read in class Aggregation

Parameters:

mainv - the aggregation variable

cancelTask - allow the user to cancel

Returns:

the data array

Throws:

java.io.IOException - on error

read

public Array read(Variable mainv,
                  Section wantSection,
                  CancelTask cancelTask)
           throws java.io.IOException

Description copied from class: Aggregation

Read a section of an aggregation variable.

Specified by:

read in interface ProxyReader

Specified by:

read in class Aggregation

Parameters:

mainv - the aggregation variable

wantSection - read just this section of the data, refers to aggregated Variable's section.

cancelTask - allow the user to cancel

Returns:

the data array section

Throws:

java.io.IOException - on error

makeDataset

protected ucar.nc2.ncml.Aggregation.Dataset makeDataset(java.lang.String cacheName,
                                                        java.lang.String location,
                                                        java.lang.String ncoordS,
                                                        java.lang.String coordValueS,
                                                        java.lang.String sectionSpec,
                                                        java.util.EnumSet<NetcdfDataset.Enhance> enhance,
                                                        FileFactory reader)

Description copied from class: Aggregation

Dataset factory, so subclasses can override

Overrides:

makeDataset in class Aggregation

Parameters:

cacheName - a unique name to use for caching

location - attribute "location" on the netcdf element

ncoordS - attribute "ncoords" on the netcdf element

coordValueS - attribute "coordValue" on the netcdf element

sectionSpec - attribute "sectionSpec" on the netcdf element

enhance - open dataset in enhance mode

reader - factory for reading this netcdf dataset

Returns:

a Aggregation.Dataset