Package com.luciad.ais.model

Class TLcdHashedFeaturedDescriptor

java.lang.Object

com.luciad.ais.model.TLcdHashedFeaturedDescriptor

All Implemented Interfaces:

ILcdFeaturedDescriptor

public class TLcdHashedFeaturedDescriptor
extends Object
implements ILcdFeaturedDescriptor

This implementation of ILcdFeaturedDescriptor uses a hashtable to map feature names to feature indices. This provides an efficient getFeatureIndex operation.

Constructor Summary

Constructors

Constructor	Description
TLcdHashedFeaturedDescriptor(TLcdDataType aDataType)	Constructs a new hashed featured descriptor that describes features of the given data type.
TLcdHashedFeaturedDescriptor(ILcdFeaturedDescriptor aFeaturedDescriptor)	Constructs a TLcdHashedFeaturedDescriptor given another featured descriptor.
TLcdHashedFeaturedDescriptor(String[] aFeatureNames, Class[] aFeatureClasses)	Constructs a new TLcdHashFeaturedDescriptor object.

Method Summary

Modifier and Type	Method	Description
Class	getFeatureClass(int aIndex)	Returns the Class of the feature at the given index.
int	getFeatureCount()	Returns the number of features.
int	getFeatureIndex(String aName)	Returns the index of the given feature name if it exists, -1 otherwise.
String	getFeatureName(int aIndex)	Returns the name of the feature at the given index.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.luciad.util.ILcdFeaturedDescriptor

getFeatureUnitOfMeasure

Constructor Details

TLcdHashedFeaturedDescriptor

public TLcdHashedFeaturedDescriptor(TLcdDataType aDataType)

Constructs a new hashed featured descriptor that describes features of the given data type. The properties of the given type will be used to determine feature names and classes. Note that instances of this class don't keep track of the given data type. This constructor just extracts the information it needs from it. This constructor is intended to be used only in the context of AIS. It's not a general mechanism to create a featured descriptor from a data type.

Parameters:

aDataType - The data type of the features that will be described by this descriptor.

Since:

10.1

TLcdHashedFeaturedDescriptor

public TLcdHashedFeaturedDescriptor(String[] aFeatureNames,
 Class[] aFeatureClasses)

Constructs a new TLcdHashFeaturedDescriptor object. A reference is kept to both aFeatureNames and aFeatureClasses; they are not copied.

Parameters:

aFeatureNames - the features names

aFeatureClasses - the feature classes

TLcdHashedFeaturedDescriptor

public TLcdHashedFeaturedDescriptor(ILcdFeaturedDescriptor aFeaturedDescriptor)

Constructs a TLcdHashedFeaturedDescriptor given another featured descriptor.

Parameters:

aFeaturedDescriptor -

Method Details

getFeatureCount

public int getFeatureCount()

Description copied from interface: ILcdFeaturedDescriptor

Returns the number of features.

Specified by:

getFeatureCount in interface ILcdFeaturedDescriptor

Returns:

the number of features.

getFeatureName

public String getFeatureName(int aIndex)

Description copied from interface: ILcdFeaturedDescriptor

Returns the name of the feature at the given index.

Specified by:

getFeatureName in interface ILcdFeaturedDescriptor

Parameters:

aIndex - a valid feature index.

Returns:

the name of the feature at the given index.

getFeatureIndex

public int getFeatureIndex(String aName)

Description copied from interface: ILcdFeaturedDescriptor

Returns the index of the given feature name if it exists, -1 otherwise.

Specified by:

getFeatureIndex in interface ILcdFeaturedDescriptor

Parameters:

aName - a feature name.

Returns:

the index of the given feature name if it exists, -1 otherwise.

getFeatureClass

public Class getFeatureClass(int aIndex)

Description copied from interface: ILcdFeaturedDescriptor

Returns the Class of the feature at the given index.

Specified by:

getFeatureClass in interface ILcdFeaturedDescriptor

Parameters:

aIndex - a valid feature index.

Returns:

the Class of the feature at the given index.