com.esri.arcgis.geoanalyst
Class FeatureClassDescriptor

java.lang.Object
  com.esri.arcgis.geoanalyst.FeatureClassDescriptor

All Implemented Interfaces:

IFeatureClassDescriptor, IGeoDataDescriptor, IGeoDataset, ISupportErrorInfo, java.io.Serializable

public class FeatureClassDescriptor

extends java.lang.Object

implements IGeoDataset, IFeatureClassDescriptor, ISupportErrorInfo

GeoAnalyst FeatureClass descriptor object.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

See Also:

Serialized Form

Constructor Summary

FeatureClassDescriptor()
Constructs a FeatureClassDescriptor using ArcGIS Engine.

FeatureClassDescriptor(java.lang.Object obj)
Deprecated. As of ArcGIS 9.2, replaced by normal Java casts.

Method Summary

void	create(IFeatureClass featureClass, IQueryFilter filter, java.lang.String fieldName) Creates a FeatureClass descriptor.
void	createFromSelectionSet(ISelectionSet selectionSet, IQueryFilter filter, java.lang.String fieldName) Creates a GeoDataset descriptor with a SelectionSet.
boolean	equals(java.lang.Object o) Compare this object with another
IFeatureClassDescriptor	getAsIFeatureClassDescriptor() Deprecated. No replacement. The object reference can be directly used where the implemented interface is needed.
IGeoDataset	getAsIGeoDataset() Deprecated. No replacement. The object reference can be directly used where the implemented interface is needed.
ISupportErrorInfo	getAsISupportErrorInfo() Deprecated. No replacement. The object reference can be directly used where the implemented interface is needed.
static java.lang.String	getClsid()
IEnvelope	getExtent() The extent of the GeoDataset.
IFeatureClass	getFeatureClass() The FeatureClass in the descriptor.
IField	getField() The field of the GeoDataset descriptor.
java.lang.String	getFieldName() The field name of the GeoDataset descriptor.
IQueryFilter	getQueryFilter() The query filter of the GeoDataset descriptor.
ISelectionSet	getSelectionSet() The SelectionSet of the GeoDataset descriptor.
ISpatialReference	getSpatialReference() The spatial reference of the GeoDataset.
int	hashCode() the hashcode for this object
void	interfaceSupportsErrorInfo(GUID riid) Supported Platforms

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureClassDescriptor

public FeatureClassDescriptor()
                       throws java.io.IOException,
                              java.net.UnknownHostException

Constructs a FeatureClassDescriptor using ArcGIS Engine.

Throws:

java.io.IOException - if there are interop problems

java.net.UnknownHostException - if there are interop problems

FeatureClassDescriptor

public FeatureClassDescriptor(java.lang.Object obj)
                       throws java.io.IOException

Deprecated. As of ArcGIS 9.2, replaced by normal Java casts.

Construct a FeatureClassDescriptor using a reference to such an object returned from ArcGIS Engine or Server. This is semantically equivalent to casting obj to FeatureClassDescriptor.
FeatureClassDescriptor theFeatureClassDescriptor = (FeatureClassDescriptor) obj;

Parameters:

obj - an object returned from ArcGIS Engine or Server

Throws:

java.io.IOException - if there are interop problems

Method Detail

getClsid

public static java.lang.String getClsid()

getAsIGeoDataset

public IGeoDataset getAsIGeoDataset()

Deprecated. No replacement. The object reference can be directly used where the implemented interface is needed.

getAsIFeatureClassDescriptor

public IFeatureClassDescriptor getAsIFeatureClassDescriptor()

Deprecated. No replacement. The object reference can be directly used where the implemented interface is needed.

getAsISupportErrorInfo

public ISupportErrorInfo getAsISupportErrorInfo()

Deprecated. No replacement. The object reference can be directly used where the implemented interface is needed.

equals

public boolean equals(java.lang.Object o)

Compare this object with another

hashCode

public int hashCode()

the hashcode for this object

getSpatialReference

public ISpatialReference getSpatialReference()
                                      throws java.io.IOException,
                                             AutomationException

Description copied from interface: IGeoDataset

The spatial reference of the GeoDataset.

Supported Platforms

Windows, Solaris, Linux

Remarks

This property is read only. For layers, when the first layer is added to ArcMap, its spatial reference is read by this property, and the map is set to this spatial reference.

Specified by:

getSpatialReference in interface IGeoDataset

Returns:

A reference to a com.esri.arcgis.geometry.ISpatialReference

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getExtent

public IEnvelope getExtent()
                    throws java.io.IOException,
                           AutomationException

Description copied from interface: IGeoDataset

The extent of the GeoDataset.

Supported Platforms

Windows, Solaris, Linux

Remarks

The IGeoDataset::Extent property returns an envelope representing the maximum extent of data which has been stored in the dataset.

Consider the following scenario. A new feature class has features added to it. The IGeoDataset::Extent is then requested and an envelope is returned. The extents of the envelope returned are represented by the red box in the image below.

If a portion of the features were then deleted and the extent is again requested an envelope with the exact same extents as during the first request would be returned (see image below). This is because the deletion of features does not shrink the extent. However all additions of features outside the red box would increase the envelope returned to encompass the newly added features.

If you would like to update the IGeoDataset::Extent property to reflect the current features in your dataset please see IFeatureClassManage::UpdateExtent (also see IFeatureClassLoad). In the image below the extent has been updated and a new envelope is being returned.

ESRI's GroupLayer implements this property differently from most other layer coclasses. When you instantiate a new GroupLayer, this property will return a valid envelope with zero height and width. With most other newly instantiated layers (for example FeatureLayer, RasterLayer, TinLayer), this property initally returns Nothing.

Specified by:

getExtent in interface IGeoDataset

Returns:

A reference to a com.esri.arcgis.geometry.IEnvelope

Throws:

AutomationException - If the ArcObject component throws an exception.

java.io.IOException - If there are interop problems.

create

public void create(IFeatureClass featureClass,
                   IQueryFilter filter,
                   java.lang.String fieldName)
            throws java.io.IOException,
                   AutomationException

Description copied from interface: IFeatureClassDescriptor

Creates a FeatureClass descriptor.

Supported Platforms

Windows, Solaris, Linux

Specified by:

create in interface IFeatureClassDescriptor

Parameters:

featureClass - A reference to a com.esri.arcgis.geodatabase.IFeatureClass (in)

filter - A reference to a com.esri.arcgis.geodatabase.IQueryFilter (in)

fieldName - The fieldName (in)

Throws:

AutomationException - If the ArcObject component throws an exception.

java.io.IOException - If there are interop problems.

getFeatureClass

public IFeatureClass getFeatureClass()
                              throws java.io.IOException,
                                     AutomationException

Description copied from interface: IFeatureClassDescriptor

The FeatureClass in the descriptor.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getFeatureClass in interface IFeatureClassDescriptor

Returns:

A reference to a com.esri.arcgis.geodatabase.IFeatureClass

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

createFromSelectionSet

public void createFromSelectionSet(ISelectionSet selectionSet,
                                   IQueryFilter filter,
                                   java.lang.String fieldName)
                            throws java.io.IOException,
                                   AutomationException

Description copied from interface: IGeoDataDescriptor

Creates a GeoDataset descriptor with a SelectionSet.

Supported Platforms

Windows, Solaris, Linux

Specified by:

createFromSelectionSet in interface IGeoDataDescriptor

Parameters:

selectionSet - A reference to a com.esri.arcgis.geodatabase.ISelectionSet (in)

filter - A reference to a com.esri.arcgis.geodatabase.IQueryFilter (in)

fieldName - The fieldName (in)

Throws:

AutomationException - If the ArcObject component throws an exception.

java.io.IOException - If there are interop problems.

getQueryFilter

public IQueryFilter getQueryFilter()
                            throws java.io.IOException,
                                   AutomationException

Description copied from interface: IGeoDataDescriptor

The query filter of the GeoDataset descriptor.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getQueryFilter in interface IGeoDataDescriptor

Returns:

A reference to a com.esri.arcgis.geodatabase.IQueryFilter

Throws:

AutomationException - If the ArcObject component throws an exception.

java.io.IOException - If there are interop problems.

getSelectionSet

public ISelectionSet getSelectionSet()
                              throws java.io.IOException,
                                     AutomationException

Description copied from interface: IGeoDataDescriptor

The SelectionSet of the GeoDataset descriptor.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getSelectionSet in interface IGeoDataDescriptor

Returns:

A reference to a com.esri.arcgis.geodatabase.ISelectionSet

Throws:

AutomationException - If the ArcObject component throws an exception.

java.io.IOException - If there are interop problems.

getField

public IField getField()
                throws java.io.IOException,
                       AutomationException

Description copied from interface: IGeoDataDescriptor

The field of the GeoDataset descriptor.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getField in interface IGeoDataDescriptor

Returns:

A reference to a com.esri.arcgis.geodatabase.IField

Throws:

AutomationException - If the ArcObject component throws an exception.

java.io.IOException - If there are interop problems.

getFieldName

public java.lang.String getFieldName()
                              throws java.io.IOException,
                                     AutomationException

Description copied from interface: IGeoDataDescriptor

The field name of the GeoDataset descriptor.

Supported Platforms

Windows, Solaris, Linux

Specified by:

getFieldName in interface IGeoDataDescriptor

Returns:

The fieldName

Throws:

java.io.IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

interfaceSupportsErrorInfo

public void interfaceSupportsErrorInfo(GUID riid)
                                throws java.io.IOException,
                                       AutomationException

Description copied from interface: ISupportErrorInfo

Supported Platforms

Windows, Solaris, Linux

Description

Indicates whether the interface supports IErrorInfo.

Specified by:

interfaceSupportsErrorInfo in interface ISupportErrorInfo

Parameters:

riid - A Structure: com.esri.arcgis.support.ms.stdole.GUID (in)

Throws:

AutomationException - If the ArcObject component throws an exception.

java.io.IOException - If there are interop problems.