Package com.luciad.ogc.filter.evaluator

Class TLcdOGCFilterContext

java.lang.Object

com.luciad.ogc.filter.evaluator.TLcdOGCFilterContext

public class TLcdOGCFilterContext
extends Object

This class holds a feature ID retriever, a property retriever provider and a default georeference with which an implementation of ILcdOGCFilterEvaluator must be provided in order to be able to interpret a filter or an expression.

Constructor Summary

Constructors

Constructor	Description
TLcdOGCFilterContext()	Creates a new TLcdOGCFilterContext instance which uses an ILcdPropertyRetrieverProvider suited for ILcdDataObject instances and that uses ILcdOGCFeatureIDRetriever.createDefaultFeatureIDRetriever(ILcdModel).
TLcdOGCFilterContext(ILcdGeoReference aGeoReference)	Creates a new TLcdOGCFilterContext instance which uses the specified reference as default georeference, an ILcdPropertyRetrieverProvider suited for ILcdDataObject instances and that uses ILcdOGCFeatureIDRetriever.createDefaultFeatureIDRetriever(ILcdModel).
TLcdOGCFilterContext(ILcdGeoReference aGeoReference, ILcdOGCFeatureIDRetriever aFeatureIDRetriever, ILcdPropertyRetrieverProvider aPropertyRetrieverProvider)	Creates an instance with a feature ID retriever, a property retriever provider and a default georeference that will be used for non-georeferenced geometries.

Method Summary

Modifier and Type	Method	Description
static TLcdOGCFilterContext	forModel(ILcdModel aModel)	Utility method to create a new TLcdOGCFilterContext instance which can be used when filtering the domain objects of that model.
ILcdOGCFeatureIDRetriever	getFeatureIDRetriever()	Gets the feature ID retriever.
ILcdGeoReference	getGeoReference()	Gets the default georeference that will be used for non-georeferenced geometries.
ILcdPropertyRetrieverProvider	getPropertyRetrieverProvider()	Gets the property retriever provider.

Methods inherited from class java.lang.Object

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

Constructor Details

TLcdOGCFilterContext

public TLcdOGCFilterContext()

Creates a new TLcdOGCFilterContext instance which uses an ILcdPropertyRetrieverProvider suited for ILcdDataObject instances and that uses ILcdOGCFeatureIDRetriever.createDefaultFeatureIDRetriever(ILcdModel). The default georeference is null.

Since:

2017.0

TLcdOGCFilterContext

public TLcdOGCFilterContext(ILcdGeoReference aGeoReference)

Creates a new TLcdOGCFilterContext instance which uses the specified reference as default georeference, an ILcdPropertyRetrieverProvider suited for ILcdDataObject instances and that uses ILcdOGCFeatureIDRetriever.createDefaultFeatureIDRetriever(ILcdModel).

Parameters:

aGeoReference - The default georeference

Since:

2017.0

TLcdOGCFilterContext

public TLcdOGCFilterContext(ILcdGeoReference aGeoReference,
 ILcdOGCFeatureIDRetriever aFeatureIDRetriever,
 ILcdPropertyRetrieverProvider aPropertyRetrieverProvider)

Creates an instance with a feature ID retriever, a property retriever provider and a default georeference that will be used for non-georeferenced geometries.

Parameters:

aGeoReference - a default georeference.

aFeatureIDRetriever - a feature ID retriever.

aPropertyRetrieverProvider - a property retriever provider.

See Also:

• ILcdPropertyRetrieverProvider.createDefaultPropertyRetrieverProvider(ILcdModel)
• ILcdOGCFeatureIDRetriever.createDefaultFeatureIDRetriever(ILcdModel)

Method Details

getGeoReference

public ILcdGeoReference getGeoReference()

Gets the default georeference that will be used for non-georeferenced geometries.

Returns:

the default georeference.

getFeatureIDRetriever

public ILcdOGCFeatureIDRetriever getFeatureIDRetriever()

Gets the feature ID retriever. I.e. the way the it must be obtained from a model object.

Returns:

the feature ID retriever.

getPropertyRetrieverProvider

public ILcdPropertyRetrieverProvider getPropertyRetrieverProvider()

Gets the property retriever provider. I.e. the way a property or XPath expression must be obtained from a model object.

This provider is not necessarily the same as the one passed in the constructor. For example to improve the performance of the evaluation of a filter, the returned provider can be a decorated instance of the one passed in the constructor to add caching.

Returns:

the property retriever provider.

forModel

public static TLcdOGCFilterContext forModel(ILcdModel aModel)

Utility method to create a new TLcdOGCFilterContext instance which can be used when filtering the domain objects of that model. It returns a context with:

• The reference of the model as geo reference.
• A default feature ID retriever.
• A default property retriever provider.

Parameters:

aModel - The model

Returns:

A new filter context

Since:

2019.1