com.esri.arcgis.display
Class LineFillSymbol

java.lang.Object
  com.esri.arcgis.display.LineFillSymbol

All Implemented Interfaces:

IDisplayName, IFillSymbol, ILineFillSymbol, IMapLevel, ISymbol, com.esri.arcgis.interop.RemoteObjRef, IClone, IPersist, IPersistStream, IPropertySupport, Externalizable, Serializable

public class LineFillSymbol
extends Object
implements com.esri.arcgis.interop.RemoteObjRef, ILineFillSymbol, IMapLevel, ISymbol, IPropertySupport, IPersistStream, IPersist, IClone, IDisplayName, Externalizable

A fill symbol comprised of any of the supported line symbols.

Description

The LineFillSymbol is used to draw a fill comprised of one or more line symbols.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

See Also:

Serialized Form

Constructor Summary

LineFillSymbol()
Constructs a LineFillSymbol using ArcGIS Engine.

LineFillSymbol(Object obj)
Deprecated. As of ArcGIS 9.2, replaced by normal Java casts.
LineFillSymbol theLineFillSymbol = (LineFillSymbol) obj;

Method Summary

boolean	applies(Object pUnk) Indicates if the receiver can apply the given object at any given time.
Object	apply(Object newObject) Applies the given property to the receiver and returns the old object.
void	assign(IClone src) Assigns the properties of src to the receiver.
boolean	canApply(Object pUnk) Indicates if the receiver can apply the given object at that particular moment.
void	draw(IGeometry geometry) Draws the specified shape.
boolean	equals(Object o) Compare this object with another
IClone	esri_clone() Clones the receiver and assigns the result to *clone.
double	getAngle() Line symbol angle within fill.
void	getClassID(GUID[] pClassID) getClassID
static String	getClsid() getClsid.
IColor	getColor() Fill color.
Object	getCurrent(Object pUnk) The object currently being used.
ILineSymbol	getLineSymbol() Line symbol used for fill.
int	getMapLevel() Current map level for drawing multi-level symbols.
String	getNameString() The display name of an object.
double	getOffset() Line fill offset.
ILineSymbol	getOutline() Line symbol of fill outline.
int	getROP2() Raster operation code for pixel drawing.
double	getSeparation() Line symbol separation within fill.
void	getSizeMax(_ULARGE_INTEGER[] pcbSize) getSizeMax
int	hashCode() the hashcode for this object
void	isDirty() isDirty
boolean	isEqual(IClone other) Indicates if the receiver and other have the same properties.
boolean	isIdentical(IClone other) Indicates if the receiver and other are the same object.
void	load(IStream pstm) load
void	queryBoundary(int hDC, ITransformation displayTransform, IGeometry geometry, IPolygon boundary) Fills an existing polygon with the boundary of the specified symbol.
void	readExternal(ObjectInput in)
void	resetDC() Restores DC to original state.
void	save(IStream pstm, int fClearDirty) save
void	setAngle(double angle) Line symbol angle within fill.
void	setColor(IColor color) Fill color.
void	setLineSymbolByRef(ILineSymbol lineSym) Line symbol used for fill.
void	setMapLevel(int mapLevel) Current map level for drawing multi-level symbols.
void	setOffset(double offset) Line fill offset.
void	setOutline(ILineSymbol outlineSym) Line symbol of fill outline.
void	setROP2(int drawMode) Raster operation code for pixel drawing.
void	setSeparation(double separation) Line symbol separation within fill.
void	setupDC(int hDC, ITransformation transformation) Prepares the DC for drawing the symbol.
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.esri.arcgis.interop.RemoteObjRef

getJintegraDispatch, release

Constructor Detail

LineFillSymbol

public LineFillSymbol()
               throws IOException,
                      UnknownHostException

Constructs a LineFillSymbol using ArcGIS Engine.

Throws:

IOException - if there are interop problems

UnknownHostException - if there are interop problems

LineFillSymbol

public LineFillSymbol(Object obj)
               throws IOException

Deprecated. As of ArcGIS 9.2, replaced by normal Java casts.
LineFillSymbol theLineFillSymbol = (LineFillSymbol) obj;

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

Parameters:

obj - an object returned from ArcGIS Engine or Server

Throws:

IOException - if there are interop problems

Method Detail

getClsid

public static String getClsid()

getClsid.

equals

public boolean equals(Object o)

Compare this object with another

Overrides:

equals in class Object

hashCode

public int hashCode()

the hashcode for this object

Overrides:

hashCode in class Object

getLineSymbol

public ILineSymbol getLineSymbol()
                          throws IOException,
                                 AutomationException

Line symbol used for fill.

Description

LineSymbol is the line symbol used to draw the lines within the fill. Any line symbol supported by the ILineSymbol interface can be specified.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getLineSymbol in interface ILineFillSymbol

Returns:

A reference to a com.esri.arcgis.display.ILineSymbol

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setLineSymbolByRef

public void setLineSymbolByRef(ILineSymbol lineSym)
                        throws IOException,
                               AutomationException

Line symbol used for fill.

Description

LineSymbol is the line symbol used to draw the lines within the fill. Any line symbol supported by the ILineSymbol interface can be specified.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setLineSymbolByRef in interface ILineFillSymbol

Parameters:

lineSym - A reference to a com.esri.arcgis.display.ILineSymbol (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getAngle

public double getAngle()
                throws IOException,
                       AutomationException

Line symbol angle within fill.

Description

Angle is the angle that the line within the fill is displayed. An Angle of 0 (zero) is horizontal, while an Angle of 90 is vertical.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getAngle in interface ILineFillSymbol

Returns:

The angle

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setAngle

public void setAngle(double angle)
              throws IOException,
                     AutomationException

Line symbol angle within fill.

Description

Angle is the angle that the line within the fill is displayed. An Angle of 0 (zero) is horizontal, while an Angle of 90 is vertical.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setAngle in interface ILineFillSymbol

Parameters:

angle - The angle (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSeparation

public double getSeparation()
                     throws IOException,
                            AutomationException

Line symbol separation within fill.

Description

Separation is the distance between each line within the fill. Separation is specified in points (approximately 1/72 inch).

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getSeparation in interface ILineFillSymbol

Returns:

The separation

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setSeparation

public void setSeparation(double separation)
                   throws IOException,
                          AutomationException

Line symbol separation within fill.

Description

Separation is the distance between each line within the fill. Separation is specified in points (approximately 1/72 inch).

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setSeparation in interface ILineFillSymbol

Parameters:

separation - The separation (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getOffset

public double getOffset()
                 throws IOException,
                        AutomationException

Line fill offset.

Description

Offset is the distance from the origin the first line will be displayed. Offset is specified in points (approximately 1/72 inch).

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getOffset in interface ILineFillSymbol

Returns:

The offset

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setOffset

public void setOffset(double offset)
               throws IOException,
                      AutomationException

Line fill offset.

Description

Offset is the distance from the origin the first line will be displayed. Offset is specified in points (approximately 1/72 inch).

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setOffset in interface ILineFillSymbol

Parameters:

offset - The offset (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getColor

public IColor getColor()
                throws IOException,
                       AutomationException

Fill color.

Description

Color is the color for a FillSymbol object. Any IColor object can be used.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getColor in interface IFillSymbol

Returns:

A reference to a com.esri.arcgis.display.IColor

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setColor

public void setColor(IColor color)
              throws IOException,
                     AutomationException

Fill color.

Description

Color is the color for a FillSymbol object. Any IColor object can be used.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setColor in interface IFillSymbol

Parameters:

color - A reference to a com.esri.arcgis.display.IColor (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getOutline

public ILineSymbol getOutline()
                       throws IOException,
                              AutomationException

Line symbol of fill outline.

Description

Outline is the border for a FillSymbol object. Any ILineSymbol object can be used.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getOutline in interface IFillSymbol

Returns:

A reference to a com.esri.arcgis.display.ILineSymbol

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setOutline

public void setOutline(ILineSymbol outlineSym)
                throws IOException,
                       AutomationException

Line symbol of fill outline.

Description

Outline is the border for a FillSymbol object. Any ILineSymbol object can be used.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setOutline in interface IFillSymbol

Parameters:

outlineSym - A reference to a com.esri.arcgis.display.ILineSymbol (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getMapLevel

public int getMapLevel()
                throws IOException,
                       AutomationException

Current map level for drawing multi-level symbols.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getMapLevel in interface IMapLevel

Returns:

The mapLevel

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setMapLevel

public void setMapLevel(int mapLevel)
                 throws IOException,
                        AutomationException

Current map level for drawing multi-level symbols.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setMapLevel in interface IMapLevel

Parameters:

mapLevel - The mapLevel (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setupDC

public void setupDC(int hDC,
                    ITransformation transformation)
             throws IOException,
                    AutomationException

Prepares the DC for drawing the symbol.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setupDC in interface ISymbol

Parameters:

hDC - The hDC (A COM typedef) (in)

transformation - A reference to a com.esri.arcgis.geometry.ITransformation (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

resetDC

public void resetDC()
             throws IOException,
                    AutomationException

Restores DC to original state.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

resetDC in interface ISymbol

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

draw

public void draw(IGeometry geometry)
          throws IOException,
                 AutomationException

Draws the specified shape.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

draw in interface ISymbol

Parameters:

geometry - A reference to a com.esri.arcgis.geometry.IGeometry (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

queryBoundary

public void queryBoundary(int hDC,
                          ITransformation displayTransform,
                          IGeometry geometry,
                          IPolygon boundary)
                   throws IOException,
                          AutomationException

Fills an existing polygon with the boundary of the specified symbol.

Remarks

Valid input Geometries are as follows:

For MarkerSymbols, the Geometry must be an IPoint.

For Fill Symbols, the Geometry can be either an IPolygon or an IEnvelope.

For Line Symbols, the Geometry must be an IPolyline.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

queryBoundary in interface ISymbol

Parameters:

hDC - The hDC (A COM typedef) (in)

displayTransform - A reference to a com.esri.arcgis.geometry.ITransformation (in)

geometry - A reference to a com.esri.arcgis.geometry.IGeometry (in)

boundary - A reference to a com.esri.arcgis.geometry.IPolygon (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getROP2

public int getROP2()
            throws IOException,
                   AutomationException

Raster operation code for pixel drawing.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getROP2 in interface ISymbol

Returns:

A com.esri.arcgis.display.esriRasterOpCode constant

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setROP2

public void setROP2(int drawMode)
             throws IOException,
                    AutomationException

Raster operation code for pixel drawing.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setROP2 in interface ISymbol

Parameters:

drawMode - A com.esri.arcgis.display.esriRasterOpCode constant (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

applies

public boolean applies(Object pUnk)
                throws IOException,
                       AutomationException

Indicates if the receiver can apply the given object at any given time.

Remarks

Applies indicates whether the specified object can be applied to the current object. For instance, we might want to ask our CircleElement whether a Color object applies to it. If it does, then we can use the Apply method to update our CircleElement with the new Color object.

CanApply differs from Applies in that it is a check for the editability of the object at any given time. Applies indicates whether an object can be applied at all, while CanApply indicates whether an object can be applied at that particular moment.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

applies in interface IPropertySupport

Parameters:

pUnk - A reference to another Object (IUnknown) (in)

Returns:

The applies

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

canApply

public boolean canApply(Object pUnk)
                 throws IOException,
                        AutomationException

Indicates if the receiver can apply the given object at that particular moment.

Remarks

CanApply indicates whether the specified object can be applied to the current object. For instance, we might want to ask our CircleElement whether a Color object applies to it. If it does, then we can use the Apply method to update our CircleElement with the new Color object.

CanApply differs from Applies in that it is a check for the editability of the object at any given time. Applies indicates whether an object can be applied at all, while CanApply indicates whether an object can be applied at that particular moment.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

canApply in interface IPropertySupport

Parameters:

pUnk - A reference to another Object (IUnknown) (in)

Returns:

The canApply

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getCurrent

public Object getCurrent(Object pUnk)
                  throws IOException,
                         AutomationException

The object currently being used.

Product Availability

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

Specified by:

getCurrent in interface IPropertySupport

Parameters:

pUnk - A reference to another Object (IUnknown) (in)

Returns:

A reference to another Object (IUnknown)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

apply

public Object apply(Object newObject)
             throws IOException,
                    AutomationException

Applies the given property to the receiver and returns the old object.

Remarks

Apply will apply the specified object to the current object. For instance, I might apply a Color object to my RectangleElement. When I execute Apply, the object I replace (the old object) is returned.

Use the Applies and CanApply methods to determine if an Apply can be used on an object.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

apply in interface IPropertySupport

Parameters:

newObject - A reference to another Object (IUnknown) (in)

Returns:

A reference to another Object (IUnknown)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isDirty

public void isDirty()
             throws IOException,
                    AutomationException

isDirty

Description

IPersistStream is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

isDirty in interface IPersistStream

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

load

public void load(IStream pstm)
          throws IOException,
                 AutomationException

load

Description

IPersistStream is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

load in interface IPersistStream

Parameters:

pstm - A reference to a com.esri.arcgis.system.IStream (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

save

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

save

Description

IPersistStream is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

save in interface IPersistStream

Parameters:

pstm - A reference to a com.esri.arcgis.system.IStream (in)

fClearDirty - The fClearDirty (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSizeMax

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

getSizeMax

Description

IPersistStream is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getSizeMax in interface IPersistStream

Parameters:

pcbSize - A Structure: com.esri.arcgis.system._ULARGE_INTEGER (out: use single element array)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getClassID

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

getClassID

Description

IPersist is a Microsoft interface. Please refer to MSDN for information about this interface.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getClassID in interface IPersist

Parameters:

pClassID - A Structure: com.esri.arcgis.support.ms.stdole.GUID (out: use single element array)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

esri_clone

public IClone esri_clone()
                  throws IOException,
                         AutomationException

Clones the receiver and assigns the result to *clone.

Product Availability

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

Specified by:

esri_clone in interface IClone

Returns:

A reference to a com.esri.arcgis.system.IClone

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

assign

public void assign(IClone src)
            throws IOException,
                   AutomationException

Assigns the properties of src to the receiver.

Description

Use Assign method to assign the properties of source object to receiver object. Both objects need to have the same CLSIDs. Both source and receiver objects need to be instantiated.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

assign in interface IClone

Parameters:

src - A reference to a com.esri.arcgis.system.IClone (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isEqual

public boolean isEqual(IClone other)
                throws IOException,
                       AutomationException

Indicates if the receiver and other have the same properties.

Description

IsEqual returns True if the receiver and the source have the same properties. Note, this does not imply that the receiver and the source reference the same object.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

isEqual in interface IClone

Parameters:

other - A reference to a com.esri.arcgis.system.IClone (in)

Returns:

The equal

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

isIdentical

public boolean isIdentical(IClone other)
                    throws IOException,
                           AutomationException

Indicates if the receiver and other are the same object.

Description

IsIdentical returns true if the receiver and the source reference the same object.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

isIdentical in interface IClone

Parameters:

other - A reference to a com.esri.arcgis.system.IClone (in)

Returns:

The identical

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getNameString

public String getNameString()
                     throws IOException,
                            AutomationException

The display name of an object.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getNameString in interface IDisplayName

Returns:

The displayName

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException