com.esri.arcgis.carto
Interface IMapLayerInfo

All Superinterfaces:
Serializable
All Known Implementing Classes:
MapLayerInfo

public interface IMapLayerInfo
extends Serializable

Provides access to the available properties of a map layer info object.

Superseded By

IMapLayerInfo2

When To Use

Product Availability

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

Supported Platforms

Windows, Solaris, Linux


Method Summary
 String getDescription()
          The description of the layer.
 String getDisplayField()
          Primary display field.
 IEnvelope getExtent()
          The geographic extent of the layer.
 IFields getFields()
          Array of attribute fields contained in the layer.
 int getID()
          The layer identifier.
 double getMaxScale()
          The maximum visible scale for the layer.
 double getMinScale()
          The minimum visible scale for the layer.
 String getName()
          The name of the layer.
 int getParentLayerID()
          If the layer is a member of a composite layer, this property identifies the parent layer.
 String getSourceDescription()
          The description of the source information for the layer.
 ILongArray getSubLayers()
          The list identifying the sublayers if the layer is a composite layer.
 String getType()
          The layer type.
 boolean isCanFind()
          Indicates if the layer supports the Find operation.
 boolean isCanIdentify()
          Indicates if the layer supports the Identify operation.
 boolean isCanScaleSymbols()
          Indicates if the layer supports symbol scaling.
 boolean isCanSelect()
          Indicates if the layer supports feature selection.
 boolean isComposite()
          Indicates if the layer is a composite layer.
 boolean isFeatureLayer()
          Indicates if the layer is a feature layer.
 boolean isHasAttributes()
          Indicates if the layer has attributes.
 boolean isHasHyperlinks()
          Indicates if the layer has hyperlinks.
 boolean isHasLabels()
          Indicates if the layer has labels to turn on and off.
 

Method Detail

getID

int getID()
          throws IOException,
                 AutomationException
The layer identifier. This ID is used throughout to uniquely identify the layer for all requests.

Remarks

ID is a unique identifier for a layer in a given instance of ArcGIS Server map service. It is important to note that ID, SourceID and the index of layers (see MapLayerInfos) in map document are not the same. SourceID is used for map service interaction with the GPServer.

When a map service is published, a unique ID is assigned to all layers within the original map document (.mxd) starting from 0 (zero). This ID is accessible from IMapServerObjects2, MapLayerInfo, LayerDescription, MapServerLegendInfo, MapServerIdentifyResult, MapServerFindResult and FeatureExtent.

ID is not re-usable and does not change if the order of the layer is changed. This would change the how each layer is ordered in the index of layers. Adding new a layer results in a new ID being assigned. IDs keep incrementing as new layers are added to the map service. The limit of id numbers available is the limit of Long data type.

Please note that if the layer order in the TOC of the original map is changed or if layers are added/removed, the IDs will change accordingly.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The layerID
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getName

String getName()
               throws IOException,
                      AutomationException
The name of the layer.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The name
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getDescription

String getDescription()
                      throws IOException,
                             AutomationException
The description of the layer. This property is set in the General tab of the Layer Properties dialog.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The desc
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getType

String getType()
               throws IOException,
                      AutomationException
The layer type.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The type
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getSourceDescription

String getSourceDescription()
                            throws IOException,
                                   AutomationException
The description of the source information for the layer.

Remarks

With ArcGIS Server 9.3 release, this property is deprecated and always returns empty string.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The desc
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isHasLabels

boolean isHasLabels()
                    throws IOException,
                           AutomationException
Indicates if the layer has labels to turn on and off.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The hasLabels
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isCanSelect

boolean isCanSelect()
                    throws IOException,
                           AutomationException
Indicates if the layer supports feature selection.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The canSelect
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isCanScaleSymbols

boolean isCanScaleSymbols()
                          throws IOException,
                                 AutomationException
Indicates if the layer supports symbol scaling.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The canScale
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isCanIdentify

boolean isCanIdentify()
                      throws IOException,
                             AutomationException
Indicates if the layer supports the Identify operation.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The canId
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isCanFind

boolean isCanFind()
                  throws IOException,
                         AutomationException
Indicates if the layer supports the Find operation.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The canFind
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isFeatureLayer

boolean isFeatureLayer()
                       throws IOException,
                              AutomationException
Indicates if the layer is a feature layer.

Product Availability

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

Returns:
The isFeatureLayer
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getMinScale

double getMinScale()
                   throws IOException,
                          AutomationException
The minimum visible scale for the layer.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The scale
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getMaxScale

double getMaxScale()
                   throws IOException,
                          AutomationException
The maximum visible scale for the layer.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The scale
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getExtent

IEnvelope getExtent()
                    throws IOException,
                           AutomationException
The geographic extent of the layer.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
A reference to a com.esri.arcgis.geometry.IEnvelope
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isHasHyperlinks

boolean isHasHyperlinks()
                        throws IOException,
                               AutomationException
Indicates if the layer has hyperlinks.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The hasLinks
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isHasAttributes

boolean isHasAttributes()
                        throws IOException,
                               AutomationException
Indicates if the layer has attributes.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The hasAttr
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getFields

IFields getFields()
                  throws IOException,
                         AutomationException
Array of attribute fields contained in the layer.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
A reference to a com.esri.arcgis.geodatabase.IFields
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getDisplayField

String getDisplayField()
                       throws IOException,
                              AutomationException
Primary display field.

Product Availability

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

Returns:
The fieldName
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isComposite

boolean isComposite()
                    throws IOException,
                           AutomationException
Indicates if the layer is a composite layer.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The isComposite
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getSubLayers

ILongArray getSubLayers()
                        throws IOException,
                               AutomationException
The list identifying the sublayers if the layer is a composite layer.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
A reference to a com.esri.arcgis.system.ILongArray
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getParentLayerID

int getParentLayerID()
                     throws IOException,
                            AutomationException
If the layer is a member of a composite layer, this property identifies the parent layer.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Returns:
The layerID
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.