com.esri.arcgis.system
Class UID

java.lang.Object
  com.esri.arcgis.system.UID

All Implemented Interfaces:

com.esri.arcgis.interop.RemoteObjRef, IPersist, IPersistStream, IUID, IXMLSerialize, Externalizable, Serializable

public class UID
extends Object
implements com.esri.arcgis.interop.RemoteObjRef, IUID, IPersist, IPersistStream, IXMLSerialize, Externalizable

Unique Identifier Object.

Remarks

COM interfaces and coclasses are identified by a globally unique identifier (GUID). The GUID for an interface is called an interface ID (IID). The GUID for a coclass is called class ID (CLSID). A ProgID is a text alias for a CLSID; the ProgID is a string composed of the project name and the class name of the coclass.

The UID coclass can be used to represent the GUID of an object.

There is built-in module called ArcID in the VBA project for the Normal template in both ArcMap and ArcCatalog. This module is a utility for finding the UID of the built-in commands and toolbars. You pass the name of a command or toolbar in as an argument to ArcID and the UID of that item is returned. The ArcID module is regenerated every time the Normal template is loaded; the registry is read to get the GUIDs of all the commands and toolbars that are currently used by the application.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

See Also:

Java developers can use the UID::setValue(Class class) method to initialize the UID object with the CLSID of an arcobjects coClass, or the IID of an arcobjects interface.

For example -

UID id = new UID();

id.setValue(com.esri.arcgis.geodatabase.IDataset.class);

, Serialized Form

Constructor Summary

UID()
Constructs a UID using ArcGIS Engine.

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

Method Summary

boolean	compare(IUID otherID) Indicates if the two UID objects represent the same globally unique identifier.
void	deserialize(IXMLSerializeData data) Deserializes an object from XML.
boolean	equals(Object o) Compare this object with another
void	generate() Creates a new globally unique value for the UID object.
void	getClassID(GUID[] pClassID) getClassID
static String	getClsid() getClsid.
void	getSizeMax(_ULARGE_INTEGER[] pcbSize) getSizeMax
int	getSubType() The subtype of the UID object.
Object	getValue() The value of the UID object.
int	hashCode() the hashcode for this object
void	isDirty() isDirty
void	load(IStream pstm) load
void	readExternal(ObjectInput in)
void	save(IStream pstm, int fClearDirty) save
void	serialize(IXMLSerializeData data) Serializes an object to XML.
void	setSubType(int subType) The subtype of the UID object.
void	setValue(Class clazz) Sets the value of the UID object to the CLSID or IID of the passed in ArcObjects Class or Interface.
void	setValue(Object guidAsString) The value of the UID object.
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

UID

public UID()
    throws IOException,
           UnknownHostException

Constructs a UID using ArcGIS Engine.

Throws:

IOException - if there are interop problems

UnknownHostException - if there are interop problems

UID

public UID(Object obj)
    throws IOException

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

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

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

getValue

public Object getValue()
                throws IOException,
                       AutomationException

The value of the UID object.

Remarks

The Value property is a string representing either the CLSID or ProgID of an interface or coclass.

COM interfaces and coclasses are identified by a globally unique identifier (GUID). The GUID for an interface is called an interface ID (IID). The GUID for a coclass is called class ID (CLSID). A ProgID is a text alias for a CLSID; the ProgID is a string composed of the project name and the class name of the coclass.

ArcGIS Desktop developers can find the CLSID, ProgID, and subtype of a built-in command, menu, or toolbar in ArcMap or ArcCatalog, in the following technical documents:

ArcGIS Developer Help for Desktop developers > General reference > Names and IDs > ArcMap commands

ArcGIS Developer Help for Desktop developers > Technical General reference > Names and IDs > ArcCatalog commands

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getValue in interface IUID

Returns:

A Variant

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setValue

public void setValue(Object guidAsString)
              throws IOException,
                     AutomationException

The value of the UID object.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setValue in interface IUID

Parameters:

guidAsString - A Variant (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

generate

public void generate()
              throws IOException,
                     AutomationException

Creates a new globally unique value for the UID object.

Description

Creates a new globally unique value (GUID) for the UID object. This is a 128-bit integer used for CLSIDs and interface identifiers.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

generate in interface IUID

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

getSubType

public int getSubType()
               throws IOException,
                      AutomationException

The subtype of the UID object.

Description

Use the SubType property when working with classes that implement ICommandSubType that have multiple commands within a single class.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

getSubType in interface IUID

Returns:

The subType

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

setSubType

public void setSubType(int subType)
                throws IOException,
                       AutomationException

The subtype of the UID object.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

setSubType in interface IUID

Parameters:

subType - The subType (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

compare

public boolean compare(IUID otherID)
                throws IOException,
                       AutomationException

Indicates if the two UID objects represent the same globally unique identifier.

Description

Returns a boolean indicating whether the specified UID object represents the same globally unique value (GUID) as this UID object.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

compare in interface IUID

Parameters:

otherID - A reference to a com.esri.arcgis.system.IUID (in)

Returns:

The bEqual

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.

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.

serialize

public void serialize(IXMLSerializeData data)
               throws IOException,
                      AutomationException

Serializes an object to XML.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

serialize in interface IXMLSerialize

Parameters:

data - A reference to a com.esri.arcgis.system.IXMLSerializeData (in)

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception.

deserialize

public void deserialize(IXMLSerializeData data)
                 throws IOException,
                        AutomationException

Deserializes an object from XML.

Product Availability

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

Supported Platforms

Windows, Solaris, Linux

Specified by:

deserialize in interface IXMLSerialize

Parameters:

data - A reference to a com.esri.arcgis.system.IXMLSerializeData (in)

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

setValue

public void setValue(Class clazz)
              throws IOException,
                     AutomationException

Sets the value of the UID object to the CLSID or IID of the passed in ArcObjects Class or Interface.

Parameters:

clazz - The Class object of an ArcGIS class or interface

Throws:

IOException - If there are interop problems.

AutomationException - If the ArcObject component throws an exception. RuntimeException If the passed in Class does not represent an ArcObjects Class or Interface.