Package org.apache.sis.internal.storage

Class MemoryGridResource

java.lang.Object

org.apache.sis.storage.AbstractResource

org.apache.sis.storage.AbstractGridCoverageResource

org.apache.sis.internal.storage.MemoryGridResource

All Implemented Interfaces:

DataSet, GridCoverageResource, Resource

public class MemoryGridResource
extends AbstractGridCoverageResource

A GridCoverageResource in memory. This resource wraps an arbitrary GridCoverage specified at construction time. Metadata can be specified by overriding #createMetadata(MetadataBuilder).

Since:

1.1

Version:

1.3

Field Summary

Fields

Modifier and Type	Field	Description
final GridCoverage	coverage	The grid coverage specified at construction time.

Fields inherited from class org.apache.sis.storage.AbstractResource

listeners

Constructor Summary

Constructors

Constructor	Description
MemoryGridResource(StoreListeners parent, GridCoverage coverage)	Creates a new coverage stored in memory.

Method Summary

Modifier and Type	Method	Description
GridGeometry	getGridGeometry()	Returns information about the domain of wrapped grid coverage.
List<SampleDimension>	getSampleDimensions()	Returns information about the ranges of wrapped grid coverage.
GridCoverage	read(GridGeometry domain, int... ranges)	Returns a subset of the wrapped grid coverage.

Methods inherited from class org.apache.sis.storage.AbstractGridCoverageResource

canNotRead, createMetadata, getEnvelope, logReadOperation

Methods inherited from class org.apache.sis.storage.AbstractResource

addListener, clearCache, getIdentifier, getMetadata, getSynchronizationLock, removeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.sis.storage.GridCoverageResource

getLoadingStrategy, getResolutions, setLoadingStrategy, subset

Methods inherited from interface org.apache.sis.storage.Resource

addListener, getIdentifier, getMetadata, removeListener

Field Details

coverage

public final GridCoverage coverage

The grid coverage specified at construction time.

Constructor Details

MemoryGridResource

public MemoryGridResource(StoreListeners parent,
 GridCoverage coverage)

Creates a new coverage stored in memory.

Parameters:

parent - listeners of the parent resource, or null if none.

coverage - stored coverage retained as-is (not copied). Cannot be null.

Method Details

getGridGeometry

public GridGeometry getGridGeometry()

Returns information about the domain of wrapped grid coverage.

Returns:

extent of grid coordinates together with their mapping to "real world" coordinates.

See Also:

• GridCoverage.getGridGeometry()

getSampleDimensions

public List<SampleDimension> getSampleDimensions()

Returns information about the ranges of wrapped grid coverage.

Returns:

ranges of sample values together with their mapping to "real values".

See Also:

• GridCoverage.getSampleDimensions()

read

public GridCoverage read(GridGeometry domain,
 int... ranges)

Returns a subset of the wrapped grid coverage. If a non-null grid geometry is specified, then this method tries to return a grid coverage matching the given grid geometry on a best-effort basis. In current implementation this is either a GridCoverage2D or the original grid coverage.

Parameters:

domain - desired grid extent and resolution, or null for the whole domain.

ranges - 0-based indices of sample dimensions to read, or null or an empty sequence for reading them all.

Returns:

the grid coverage for the specified domain and ranges.