Package org.apache.sis.storage.landsat

Class BandGroup

java.lang.Object

org.apache.sis.storage.AbstractResource

org.apache.sis.storage.landsat.BandGroup

All Implemented Interfaces:

StoreResource, Aggregate, Resource

final class BandGroup
extends AbstractResource
implements Aggregate, StoreResource

An aggregate of Band. Each aggregate is for one BandGroupName.

Since:

1.1

Version:

1.3

Field Summary

Fields

Modifier and Type	Field	Description
private final Band[]	components	The array of images for each Landsat band.
(package private) final BandGroupName	group	The group of bands that this aggregate represents.
(package private) org.opengis.util.GenericName	identifier	Name of the band group.

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

listeners

Constructor Summary

Constructors

Modifier	Constructor	Description
private	BandGroup(StoreListeners parent, BandGroupName group, Band[] resources, int count)	Creates a new aggregate for the specified group.

Method Summary

Modifier and Type	Method	Description
(package private) static final List<Band>	bands(BandGroup[] components)	Returns all bands in the given array of aggregates.
Collection<Resource>	components()	Returns the resources for each Landsat band of this group.
protected org.opengis.metadata.Metadata	createMetadata()	Invoked in a synchronized block the first time that AbstractResource.getMetadata() is invoked.
Optional<org.opengis.util.GenericName>	getIdentifier()	Returns the resource persistent identifier if available.
DataStore	getOriginator()	Returns the data store that created this resource.
(package private) static BandGroup[]	group(StoreListeners parent, Band[] resources, int count)	Creates aggregates for the given bands.

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

addListener, clearCache, getEnvelope, 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.Resource

addListener, getMetadata, removeListener

Field Details

group

final BandGroupName group

The group of bands that this aggregate represents.

identifier

org.opengis.util.GenericName identifier

Name of the band group. This is set by LandsatStore and should not be modified after that point.

components

private final Band[] components

The array of images for each Landsat band.

Constructor Details

BandGroup

private BandGroup(StoreListeners parent,
 BandGroupName group,
 Band[] resources,
 int count)

Creates a new aggregate for the specified group. This constructor will copy only the resources for that group from the given array.

Method Details

group

static BandGroup[] group(StoreListeners parent,
 Band[] resources,
 int count)

Creates aggregates for the given bands.

getOriginator

public DataStore getOriginator()

Returns the data store that created this resource.

Specified by:

getOriginator in interface StoreResource

Returns:

the data store that created this resource.

getIdentifier

public Optional<org.opengis.util.GenericName> getIdentifier()

Returns the resource persistent identifier if available.

Specified by:

getIdentifier in interface Resource

Overrides:

getIdentifier in class AbstractResource

Returns:

a persistent identifier unique within the data store, or absent if this resource has no such identifier.

See Also:

• DataStore.getIdentifier()
• DataStore.findResource(String)

createMetadata

protected org.opengis.metadata.Metadata createMetadata()
                                                throws DataStoreException

Invoked in a synchronized block the first time that AbstractResource.getMetadata() is invoked.

Overrides:

createMetadata in class AbstractResource

Returns:

the newly created metadata, or null if unknown.

Throws:

DataStoreException - if an error occurred while reading metadata from this resource.

components

public Collection<Resource> components()

Returns the resources for each Landsat band of this group.

Specified by:

components in interface Aggregate

Returns:

all children resources that are components of this aggregate. Never null.

bands

static final List<Band> bands(BandGroup[] components)

Returns all bands in the given array of aggregates.