com.esri.arcgis.carto
Class TinContourRenderer

java.lang.Object
  extended by com.esri.arcgis.carto.TinContourRenderer
All Implemented Interfaces:
ILegendInfo, IMultiResolutionRenderer, ITinContourRenderer, ITinRenderer, com.esri.arcgis.interop.RemoteObjRef, IPersist, IPersistStream, java.io.Externalizable, java.io.Serializable

public class TinContourRenderer
extends java.lang.Object
implements com.esri.arcgis.interop.RemoteObjRef, ITinContourRenderer, ITinRenderer, IMultiResolutionRenderer, ILegendInfo, IPersistStream, IPersist, java.io.Externalizable

COM Class 'TinContourRenderer'. Generated 3/19/2015 1:20:41 PM from 'C:\ArcGIS\COM\esriCarto.olb'

Description 'TIN contour renderer component.' Generator Options: PromptForTypeLibraries = False ClashPrefix = esri_ LowerCaseMemberNames = True IDispatchOnly = False RetryOnReject = False AwtForOcxs = True ArraysAsObjects = False DontRenameSameMethods = False ImplementConflictingInterfaces = True ReuseMethods = True RenameConflictingInterfaceMethods = True GenBeanInfo = True GenerateJavadoc =

See Also:
Serialized Form

Field Summary
static long serialVersionUID
           
 
Fields inherited from interface com.esri.arcgis.carto.ITinContourRenderer
IID, IID8a4eea7b_a3f7_4651_8bbd_b6bf08b11a19, xxDummy
 
Fields inherited from interface com.esri.arcgis.carto.ITinRenderer
IID, IID466db6cd_80a6_11d2_81eb_00104bc4cd03, xxDummy
 
Fields inherited from interface com.esri.arcgis.carto.IMultiResolutionRenderer
IID, IIDd16a4d52_a926_4e8e_a7a2_535950c86afa, xxDummy
 
Fields inherited from interface com.esri.arcgis.system.IPersistStream
IID, IID00000109_0000_0000_c000_000000000046, xxDummy
 
Fields inherited from interface com.esri.arcgis.system.IPersist
IID0000010c_0000_0000_c000_000000000046
 
Constructor Summary
TinContourRenderer()
          Constructs a TinContourRenderer using ArcGIS Engine.
TinContourRenderer(java.lang.Object obj)
          Deprecated. As of ArcGIS 9.2, replaced by normal Java casts.
TinContourRenderer theTinContourRenderer = (TinContourRenderer) obj;
 
Method Summary
 boolean canRender()
          Indicates if renderer can draw.
 void copy(ITinRenderer pSource)
          Copies the properties of the given renderer.
 void draw(int drawPhase, IDisplay display, ISpatialReference aSpatialReference, ITrackCancel trackCancel)
          Draws the TIN.
 boolean equals(java.lang.Object o)
          Compare this object with another
 IEnvelope getAreaOfInterest()
          The area of interest to be rendered.
 void getClassID(GUID[] pClassID)
          getClassID
static java.lang.String getClsid()
          getClsid.
 java.lang.String getContourDescription()
          The description for the label.
 double getContourInterval()
          The contour interval.
 java.lang.String getContourLabel()
          The descriptive symbol text.
 ISymbol getContourSymbol()
          The symbol used to render the contour.
 java.lang.String getIndexContourDescription()
          The description for the index contour.
 int getIndexContourFactor()
          The index contour factor.
 java.lang.String getIndexContourLabel()
          The label for the index contour.
 ISymbol getIndexContourSymbol()
          The symbol used to render index contour.
 com.esri.arcgis.interop.Dispatch getJintegraDispatch()
          Deprecated. Internal use only.
 ILegendGroup getLegendGroup(int index)
          Legend group at the specified index.
 int getLegendGroupCount()
          Number of legend groups contained by the object.
 ILegendItem getLegendItem()
          Optional.
 double getMinVisibleResolution()
          The minimum resolution at which data are rendered.
 java.lang.String getName()
          The descriptive name of a renderer.
 double getReferenceContourHeight()
          The reference contour height.
 double getResolution()
          The resolution to be rendered.
 void getSizeMax(_ULARGE_INTEGER[] pcbSize)
          getSizeMax
 ITin getTin()
          The TIN associated with the renderer.
 int hashCode()
          the hashcode for this object
 void isDirty()
          isDirty
 boolean isSymbolsAreGraduated()
          Indicates if symbols are graduated.
 boolean isVisible()
          Indicates if the renderer is currently visible.
 void load(IStream pstm)
          load
 void readExternal(java.io.ObjectInput in)
           
 void release()
          Release a TinContourRenderer.
 void save(IStream pstm, int fClearDirty)
          save
 void setAreaOfInterest(IEnvelope ppAOI)
          The area of interest to be rendered.
 void setContourDescription(java.lang.String text)
          The description for the label.
 void setContourInterval(double interval)
          The contour interval.
 void setContourLabel(java.lang.String label)
          The descriptive symbol text.
 void setContourSymbolByRef(ISymbol symbol)
          The symbol used to render the contour.
 void setIndexContourDescription(java.lang.String text)
          The description for the index contour.
 void setIndexContourFactor(int factor)
          The index contour factor.
 void setIndexContourLabel(java.lang.String label)
          The label for the index contour.
 void setIndexContourSymbolByRef(ISymbol symbol)
          The symbol used to render index contour.
 void setMinVisibleResolution(double pResolution)
          The minimum resolution at which data are rendered.
 void setName(java.lang.String name)
          The descriptive name of a renderer.
 void setReferenceContourHeight(double height)
          The reference contour height.
 void setResolution(double pResolution)
          The resolution to be rendered.
 void setSymbolsAreGraduated(boolean symbolsAreGraduated)
          Indicates if symbols are graduated.
 void setTinByRef(ITin ppTin)
          The TIN associated with the renderer.
 void setVisible(boolean visible)
          Indicates if the renderer is currently visible.
 void writeExternal(java.io.ObjectOutput out)
           
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

serialVersionUID

public static final long serialVersionUID
See Also:
Constant Field Values
Constructor Detail

TinContourRenderer

public TinContourRenderer()
                   throws java.io.IOException,
                          java.net.UnknownHostException
Constructs a TinContourRenderer using ArcGIS Engine.

Throws:
java.io.IOException - if there are interop problems
java.net.UnknownHostException - if there are interop problems

TinContourRenderer

public TinContourRenderer(java.lang.Object obj)
                   throws java.io.IOException
Deprecated. As of ArcGIS 9.2, replaced by normal Java casts.
TinContourRenderer theTinContourRenderer = (TinContourRenderer) obj;

Construct a TinContourRenderer using a reference to such an object returned from ArcGIS Engine or Server. This is semantically equivalent to casting obj to TinContourRenderer.

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()
getClsid.


equals

public boolean equals(java.lang.Object o)
Compare this object with another

Overrides:
equals in class java.lang.Object

hashCode

public int hashCode()
the hashcode for this object

Overrides:
hashCode in class java.lang.Object

getJintegraDispatch

public com.esri.arcgis.interop.Dispatch getJintegraDispatch()
Deprecated. Internal use only.

Specified by:
getJintegraDispatch in interface com.esri.arcgis.interop.RemoteObjRef

release

public void release()
Release a TinContourRenderer.

Specified by:
release in interface com.esri.arcgis.interop.RemoteObjRef

getReferenceContourHeight

public double getReferenceContourHeight()
                                 throws java.io.IOException,
                                        AutomationException
The reference contour height.

Specified by:
getReferenceContourHeight in interface ITinContourRenderer
Returns:
The height
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setReferenceContourHeight

public void setReferenceContourHeight(double height)
                               throws java.io.IOException,
                                      AutomationException
The reference contour height.

Specified by:
setReferenceContourHeight in interface ITinContourRenderer
Parameters:
height - The height (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getContourInterval

public double getContourInterval()
                          throws java.io.IOException,
                                 AutomationException
The contour interval.

Specified by:
getContourInterval in interface ITinContourRenderer
Returns:
The interval
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setContourInterval

public void setContourInterval(double interval)
                        throws java.io.IOException,
                               AutomationException
The contour interval.

Specified by:
setContourInterval in interface ITinContourRenderer
Parameters:
interval - The interval (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getIndexContourFactor

public int getIndexContourFactor()
                          throws java.io.IOException,
                                 AutomationException
The index contour factor.

Specified by:
getIndexContourFactor in interface ITinContourRenderer
Returns:
The factor
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setIndexContourFactor

public void setIndexContourFactor(int factor)
                           throws java.io.IOException,
                                  AutomationException
The index contour factor.

Specified by:
setIndexContourFactor in interface ITinContourRenderer
Parameters:
factor - The factor (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getContourSymbol

public ISymbol getContourSymbol()
                         throws java.io.IOException,
                                AutomationException
The symbol used to render the contour.

Specified by:
getContourSymbol in interface ITinContourRenderer
Returns:
A reference to a com.esri.arcgis.display.ISymbol
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setContourSymbolByRef

public void setContourSymbolByRef(ISymbol symbol)
                           throws java.io.IOException,
                                  AutomationException
The symbol used to render the contour.

Specified by:
setContourSymbolByRef in interface ITinContourRenderer
Parameters:
symbol - A reference to a com.esri.arcgis.display.ISymbol (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getContourLabel

public java.lang.String getContourLabel()
                                 throws java.io.IOException,
                                        AutomationException
The descriptive symbol text.

Specified by:
getContourLabel in interface ITinContourRenderer
Returns:
The label
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setContourLabel

public void setContourLabel(java.lang.String label)
                     throws java.io.IOException,
                            AutomationException
The descriptive symbol text.

Specified by:
setContourLabel in interface ITinContourRenderer
Parameters:
label - The label (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getContourDescription

public java.lang.String getContourDescription()
                                       throws java.io.IOException,
                                              AutomationException
The description for the label.

Specified by:
getContourDescription in interface ITinContourRenderer
Returns:
The text
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setContourDescription

public void setContourDescription(java.lang.String text)
                           throws java.io.IOException,
                                  AutomationException
The description for the label.

Specified by:
setContourDescription in interface ITinContourRenderer
Parameters:
text - The text (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getIndexContourSymbol

public ISymbol getIndexContourSymbol()
                              throws java.io.IOException,
                                     AutomationException
The symbol used to render index contour.

Specified by:
getIndexContourSymbol in interface ITinContourRenderer
Returns:
A reference to a com.esri.arcgis.display.ISymbol
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setIndexContourSymbolByRef

public void setIndexContourSymbolByRef(ISymbol symbol)
                                throws java.io.IOException,
                                       AutomationException
The symbol used to render index contour.

Specified by:
setIndexContourSymbolByRef in interface ITinContourRenderer
Parameters:
symbol - A reference to a com.esri.arcgis.display.ISymbol (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getIndexContourLabel

public java.lang.String getIndexContourLabel()
                                      throws java.io.IOException,
                                             AutomationException
The label for the index contour.

Specified by:
getIndexContourLabel in interface ITinContourRenderer
Returns:
The label
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setIndexContourLabel

public void setIndexContourLabel(java.lang.String label)
                          throws java.io.IOException,
                                 AutomationException
The label for the index contour.

Specified by:
setIndexContourLabel in interface ITinContourRenderer
Parameters:
label - The label (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getIndexContourDescription

public java.lang.String getIndexContourDescription()
                                            throws java.io.IOException,
                                                   AutomationException
The description for the index contour.

Specified by:
getIndexContourDescription in interface ITinContourRenderer
Returns:
The text
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setIndexContourDescription

public void setIndexContourDescription(java.lang.String text)
                                throws java.io.IOException,
                                       AutomationException
The description for the index contour.

Specified by:
setIndexContourDescription in interface ITinContourRenderer
Parameters:
text - The text (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

draw

public void draw(int drawPhase,
                 IDisplay display,
                 ISpatialReference aSpatialReference,
                 ITrackCancel trackCancel)
          throws java.io.IOException,
                 AutomationException
Draws the TIN.

Specified by:
draw in interface ITinRenderer
Parameters:
drawPhase - A com.esri.arcgis.system.esriDrawPhase constant (in)
display - A reference to a com.esri.arcgis.display.IDisplay (in)
aSpatialReference - A reference to a com.esri.arcgis.geometry.ISpatialReference (in)
trackCancel - A reference to a com.esri.arcgis.system.ITrackCancel (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

copy

public void copy(ITinRenderer pSource)
          throws java.io.IOException,
                 AutomationException
Copies the properties of the given renderer.

Specified by:
copy in interface ITinRenderer
Parameters:
pSource - A reference to a com.esri.arcgis.carto.ITinRenderer (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

canRender

public boolean canRender()
                  throws java.io.IOException,
                         AutomationException
Indicates if renderer can draw.

Specified by:
canRender in interface ITinRenderer
Returns:
The pCanRender
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setTinByRef

public void setTinByRef(ITin ppTin)
                 throws java.io.IOException,
                        AutomationException
The TIN associated with the renderer.

Specified by:
setTinByRef in interface ITinRenderer
Parameters:
ppTin - A reference to a com.esri.arcgis.geodatabase.ITin (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getTin

public ITin getTin()
            throws java.io.IOException,
                   AutomationException
The TIN associated with the renderer.

Specified by:
getTin in interface ITinRenderer
Returns:
A reference to a com.esri.arcgis.geodatabase.ITin
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getName

public java.lang.String getName()
                         throws java.io.IOException,
                                AutomationException
The descriptive name of a renderer.

Specified by:
getName in interface ITinRenderer
Returns:
The name
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setName

public void setName(java.lang.String name)
             throws java.io.IOException,
                    AutomationException
The descriptive name of a renderer.

Specified by:
setName in interface ITinRenderer
Parameters:
name - The name (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isVisible

public boolean isVisible()
                  throws java.io.IOException,
                         AutomationException
Indicates if the renderer is currently visible.

Specified by:
isVisible in interface ITinRenderer
Returns:
The visible
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setVisible

public void setVisible(boolean visible)
                throws java.io.IOException,
                       AutomationException
Indicates if the renderer is currently visible.

Specified by:
setVisible in interface ITinRenderer
Parameters:
visible - The visible (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setAreaOfInterest

public void setAreaOfInterest(IEnvelope ppAOI)
                       throws java.io.IOException,
                              AutomationException
The area of interest to be rendered.

Specified by:
setAreaOfInterest in interface IMultiResolutionRenderer
Parameters:
ppAOI - A reference to a com.esri.arcgis.geometry.IEnvelope (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getAreaOfInterest

public IEnvelope getAreaOfInterest()
                            throws java.io.IOException,
                                   AutomationException
The area of interest to be rendered.

Specified by:
getAreaOfInterest in interface IMultiResolutionRenderer
Returns:
A reference to a com.esri.arcgis.geometry.IEnvelope
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setResolution

public void setResolution(double pResolution)
                   throws java.io.IOException,
                          AutomationException
The resolution to be rendered.

Specified by:
setResolution in interface IMultiResolutionRenderer
Parameters:
pResolution - The pResolution (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getResolution

public double getResolution()
                     throws java.io.IOException,
                            AutomationException
The resolution to be rendered.

Specified by:
getResolution in interface IMultiResolutionRenderer
Returns:
The pResolution
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setMinVisibleResolution

public void setMinVisibleResolution(double pResolution)
                             throws java.io.IOException,
                                    AutomationException
The minimum resolution at which data are rendered.

Specified by:
setMinVisibleResolution in interface IMultiResolutionRenderer
Parameters:
pResolution - The pResolution (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getMinVisibleResolution

public double getMinVisibleResolution()
                               throws java.io.IOException,
                                      AutomationException
The minimum resolution at which data are rendered.

Specified by:
getMinVisibleResolution in interface IMultiResolutionRenderer
Returns:
The pResolution
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getLegendGroupCount

public int getLegendGroupCount()
                        throws java.io.IOException,
                               AutomationException
Number of legend groups contained by the object.

Remarks

The number of legend groups is determined by the implementation of the renderer, consequently this property is read only. For example, SimpleRenderer has one group, while a BiUniqueValueRenderer has any number of groups.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:
getLegendGroupCount in interface ILegendInfo
Returns:
The count
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getLegendGroup

public ILegendGroup getLegendGroup(int index)
                            throws java.io.IOException,
                                   AutomationException
Legend group at the specified index.

Product Availability

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

Specified by:
getLegendGroup in interface ILegendInfo
Parameters:
index - The index (in)
Returns:
A reference to a com.esri.arcgis.carto.ILegendGroup
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getLegendItem

public ILegendItem getLegendItem()
                          throws java.io.IOException,
                                 AutomationException
Optional. Defines legend formatting for layer rendered with this object.

Remarks

Layer or renderer legend information is further formatted for display in ArcMap legends. A renderer can override this formatting by returning a LegendItem for this property. ESRI renderers typically do not return anything for this property. With this configuration, legend formatting becomes a user or developer choice on the legend object.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:
getLegendItem in interface ILegendInfo
Returns:
A reference to a com.esri.arcgis.carto.ILegendItem
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isSymbolsAreGraduated

public boolean isSymbolsAreGraduated()
                              throws java.io.IOException,
                                     AutomationException
Indicates if symbols are graduated.

Description

Indicates whether the symbols used for a layer or renderer's legend vary by size.

Remarks

For example the proportional symbol renderer returns True for this property.

You can use this property to distinguish between a layer symbolized with graduated color or graduated symbol type layer symbology. Both of these symbolizations use a ClassBreaksRenderer, but only a graduated symbol symbolization will return True for this property.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:
isSymbolsAreGraduated in interface ILegendInfo
Returns:
The symbolsAreGraduated
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setSymbolsAreGraduated

public void setSymbolsAreGraduated(boolean symbolsAreGraduated)
                            throws java.io.IOException,
                                   AutomationException
Indicates if symbols are graduated.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:
setSymbolsAreGraduated in interface ILegendInfo
Parameters:
symbolsAreGraduated - The symbolsAreGraduated (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

isDirty

public void isDirty()
             throws java.io.IOException,
                    AutomationException
isDirty

Specified by:
isDirty in interface IPersistStream
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

load

public void load(IStream pstm)
          throws java.io.IOException,
                 AutomationException
load

Specified by:
load in interface IPersistStream
Parameters:
pstm - A reference to a com.esri.arcgis.system.IStream (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

save

public void save(IStream pstm,
                 int fClearDirty)
          throws java.io.IOException,
                 AutomationException
save

Specified by:
save in interface IPersistStream
Parameters:
pstm - A reference to a com.esri.arcgis.system.IStream (in)
fClearDirty - The fClearDirty (in)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getSizeMax

public void getSizeMax(_ULARGE_INTEGER[] pcbSize)
                throws java.io.IOException,
                       AutomationException
getSizeMax

Specified by:
getSizeMax in interface IPersistStream
Parameters:
pcbSize - A Structure: com.esri.arcgis.system._ULARGE_INTEGER (out: use single element array)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getClassID

public void getClassID(GUID[] pClassID)
                throws java.io.IOException,
                       AutomationException
getClassID

Specified by:
getClassID in interface IPersist
Parameters:
pClassID - A Structure: com.esri.arcgis.support.ms.stdole.GUID (out: use single element array)
Throws:
java.io.IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException
Specified by:
writeExternal in interface java.io.Externalizable
Throws:
java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException
Specified by:
readExternal in interface java.io.Externalizable
Throws:
java.io.IOException
java.lang.ClassNotFoundException