cfobject: Java or EJB object

Last updated on Feb 25, 2025 | Also applies to ColdFusion

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ColdFusion functions

ColdFusion functions by category
Functions a-b
1. Abs
2. ACos
3. AddSOAPRequestHeader
4. AddSOAPResponseHeader
5. AjaxLink
6. AjaxOnLoad
7. ApplicationStop
8. ArrayAppend
9. ArrayAvg
10. ArrayClear
11. ArrayContains
12. ArrayContainsNoCase
13. ArrayDelete
14. ArrayDeleteAt
15. ArrayDeleteNoCase
16. ArrayEach
17. ArrayFilter
18. ArrayFind
19. ArrayFindAll
20. ArrayFindAllNoCase
21. ArrayFindNoCase
22. ArrayInsertAt
23. ArrayIsDefined
24. ArrayIsEmpty
25. ArrayLen
26. ArrayMap
27. ArrayMax
28. ArrayMin
29. ArrayNew
30. ArrayPrepend
31. ArrayReduce
32. ArrayResize
33. ArraySet
34. ArraySetMetadata
35. ArraySlice
36. ArraySort
37. ArraySum
38. ArraySwap
39. ArrayToList
40. Asc
41. ASin
42. Atn
43. AuthenticatedContext
44. AuthenticatedUser
45. BinaryDecode
46. BinaryEncode
47. BitAnd
48. BitMaskClear
49. BitMaskRead
50. BitMaskSet
51. BitNot
52. BitOr
53. BitSHLN
54. BitSHRN
55. BitXor
56. BooleanFormat
Functions-c-d
Functions-e-g
Functions-h-im
Functions-in-k
Functions-l
Functions-m-r
Functions-s
Functions-t-z
1. Tan
2. ThreadJoin
3. ThreadTerminate
4. Throw
5. TimeFormat
6. ToBase64
7. ToBinary
8. ToScript
9. ToString
10. Trace
11. Transactionandconcurrency
12. TransactionCommit
13. TransactionRollback
14. TransactionSetSavePoint
15. Trim
16. UCase
17. URLDecode
18. URLEncodedFormat
19. URLSessionFormat
20. Val
21. ValueList
22. VerifyClient
23. Week
24. Wrap
25. WriteDump
26. WriteLog
27. WriteOutput
28. WSGetAllChannels
29. WSGetSubscribers
30. WSPublish
31. WSSendMessage
32. XmlChildPos
33. XmlElemNew
34. XmlFormat
35. XmlGetNodeType
36. XmlNew
37. XmlParse
38. XmlSearch
39. XmlTransform
40. XmlValidate
41. Year
42. YesNoFormat

ColdFusion tags

ColdFusion tag summary
ColdFusion tags by category
1. Application framework tags
  1. cfapplication
  2. cfassociate
  3. cferror
  4. cfimport
  5. cfinterface
  6. cflock
  7. cfscript
  8. cfthread
2. Communications tags
3. Database manipulation tags
4. Data output tags
  1. cfchart
5. Debugging tags
  1. cfdump
  2. cftimer
  3. cftrace
6. Exception handling tags
  1. cfcatch
  2. cferror
  3. cffinally
  4. cfrethrow
  5. cfthrow
  6. cftry
7. Extensibility tags
  1. cfchart
  2. cfchartdata
  3. cfchartseries
  4. cfcollection
  5. cfcomponent
  6. cfexecute
  7. cfftp
  8. function
  9. cfindex
  10. cfinterface
  11. cfinvoke
  12. cfinvokeargument
  13. cfobject
  14. cfproperty
  15. cfreport
  16. cfreportparam
  17. cfreturn
  18. cfsearch
  19. cfsharepoint
  20. cfspreadsheet
  21. cfwddx
  22. cfxml
8. File management tags
  1. cfdirectory
  2. cffile
  3. cffileupload
  4. cfftp
  5. cfzip
  6. cfzipparam
9. Flow-control tags
  1. cfabort
  2. cfbreak
  3. cfcase
  4. cfcontinue
  5. cfdefaultcase
  6. cfelse
  7. cfelseif
  8. cfexecute
  9. cfexit
  10. cfif
  11. cfinclude
  12. cflocation
  13. cfloop
  14. cfrethrow
  15. cfswitch
  16. cfthrow
  17. cftry
10. Forms tags
  1. cfapplet
  2. cfcalendar
  3. cffileupload
  4. cfform
  5. cfformgroup
  6. cfformitem
  7. cfgrid
  8. cfgridcolumn
  9. cfgridrow
  10. cfgridupdate
  11. cfinput
  12. cfpdf
  13. cfpdfform
  14. cfpdfformparam
  15. cfpdfparam
  16. cfpdfsubform
  17. cfselect
  18. cfslider
  19. cftextarea
  20. cftree
  21. cftreeitem
11. Internet Protocol tags
  1. cfajaximport
  2. cfajaxproxy
  3. cfftp
  4. cffeed
  5. cfimap
  6. cfhttp
  7. cfhttpparam
  8. cfldap
  9. cfmail
  10. cfmailparam
  11. cfmailpart
  12. cfpop
  13. cfsprydataset
12. Page processing tags
  1. cfcache
  2. cfcontent
  3. cfflush
  4. cfheader
  5. cfhtmlhead
  6. cfinclude
  7. cfprocessingdirective
  8. cfsetting
  9. cfsilent
13. Security tags
14. Variable manipulation tags
  1. cfcookie
  2. cfdump
  3. cfparam
  4. cfregistry
  5. cfsavecontent
  6. cfschedule
  7. cfset
  8. cfsetting
15. Other tags
  1. cfimage
  2. cflog
  3. cfregistry
Tags a-b
Tags c
Tags f
Tags g-h
1. cfgraph
2. cfgraphdata
3. cfgrid
4. cfgridcolumn
5. cfgridrow
6. cfgridupdate
7. cfheader
8. cfhtmlhead
9. cfhtmltopdf
10. cfhtmltopdfitem
11. cfhttp
12. cfhttpparam
Tags i
1. cfif
2. cfimage
3. cfimap
4. cfimapfilter
5. cfimpersonate
6. cfimport
7. cfinclude
8. cfindex
9. cfinput
10. cfinsert
11. cfinterface
12. cfinvoke
13. cfinvokeargument
Tags j-l
Tags m-o
Tags p-q
1. cfparam
2. cfpdf
3. cfpdfform
4. cfpdfformparam
5. cfpdfparam
6. cfpdfsubform
7. cfpod
8. cfpop
9. cfpresentation
10. cfpresentationslide
11. cfpresenter
12. cfprint
13. cfprocessingdirective
14. cfprocparam
15. cfprocresult
16. cfprogressbar
17. cfproperty
18. cfquery
19. cfqueryparam
Tags r-s
1. cfregistry
2. cfreport
3. cfreportparam
4. cfrethrow
5. cfreturn
6. cfsavecontent
7. cfschedule
8. cfscript
9. cfsearch
10. cfselect
11. cfservlet
12. cfservletparam
13. cfset
14. cfsetting
15. cfsharepoint
16. cfsilent
17. cfslider
18. cfspreadsheet
19. cfsprydataset
20. cfstoredproc
21. cfswitch
Tags t
1. cftable
2. cftextarea
3. cftextinput
4. cfthread
5. cfthrow
6. cftimer
7. cftooltip
8. cftrace
9. cftransaction
10. cftree
11. cftreeitem
12. cftry
Tags u-z
1. cfupdate
2. cfwddx
3. cfwebsocket
4. cfwindow
5. cfxml
6. cfzip
7. cfzipparam

CFML Reference

Cloud services

CFML Reference User Guide
ColdFusion functions
ColdFusion tags
1. ColdFusion tag summary
2. ColdFusion tags by category
  1. Application framework tags
    1. cfapplication
    2. cfassociate
    3. cferror
    4. cfimport
    5. cfinterface
    6. cflock
    7. cfscript
    8. cfthread
  2. Communications tags
  3. Database manipulation tags
  4. Data output tags
    1. cfchart
  5. Debugging tags
    1. cfdump
    2. cftimer
    3. cftrace
  6. Exception handling tags
    1. cfcatch
    2. cferror
    3. cffinally
    4. cfrethrow
    5. cfthrow
    6. cftry
  7. Extensibility tags
    1. cfchart
    2. cfchartdata
    3. cfchartseries
    4. cfcollection
    5. cfcomponent
    6. cfexecute
    7. cfftp
    8. function
    9. cfindex
    10. cfinterface
    11. cfinvoke
    12. cfinvokeargument
    13. cfobject
    14. cfproperty
    15. cfreport
    16. cfreportparam
    17. cfreturn
    18. cfsearch
    19. cfsharepoint
    20. cfspreadsheet
    21. cfwddx
    22. cfxml
  8. File management tags
    1. cfdirectory
    2. cffile
    3. cffileupload
    4. cfftp
    5. cfzip
    6. cfzipparam
  9. Flow-control tags
    1. cfabort
    2. cfbreak
    3. cfcase
    4. cfcontinue
    5. cfdefaultcase
    6. cfelse
    7. cfelseif
    8. cfexecute
    9. cfexit
    10. cfif
    11. cfinclude
    12. cflocation
    13. cfloop
    14. cfrethrow
    15. cfswitch
    16. cfthrow
    17. cftry
  10. Forms tags
    1. cfapplet
    2. cfcalendar
    3. cffileupload
    4. cfform
    5. cfformgroup
    6. cfformitem
    7. cfgrid
    8. cfgridcolumn
    9. cfgridrow
    10. cfgridupdate
    11. cfinput
    12. cfpdf
    13. cfpdfform
    14. cfpdfformparam
    15. cfpdfparam
    16. cfpdfsubform
    17. cfselect
    18. cfslider
    19. cftextarea
    20. cftree
    21. cftreeitem
  11. Internet Protocol tags
    1. cfajaximport
    2. cfajaxproxy
    3. cfftp
    4. cffeed
    5. cfimap
    6. cfhttp
    7. cfhttpparam
    8. cfldap
    9. cfmail
    10. cfmailparam
    11. cfmailpart
    12. cfpop
    13. cfsprydataset
  12. Page processing tags
    1. cfcache
    2. cfcontent
    3. cfflush
    4. cfheader
    5. cfhtmlhead
    6. cfinclude
    7. cfprocessingdirective
    8. cfsetting
    9. cfsilent
  13. Security tags
  14. Variable manipulation tags
    1. cfcookie
    2. cfdump
    3. cfparam
    4. cfregistry
    5. cfsavecontent
    6. cfschedule
    7. cfset
    8. cfsetting
  15. Other tags
    1. cfimage
    2. cflog
    3. cfregistry
3. Tags a-b
4. Tags c
5. Tags f
6. Tags g-h
  1. cfgraph
  2. cfgraphdata
  3. cfgrid
  4. cfgridcolumn
  5. cfgridrow
  6. cfgridupdate
  7. cfheader
  8. cfhtmlhead
  9. cfhtmltopdf
  10. cfhtmltopdfitem
  11. cfhttp
  12. cfhttpparam
7. Tags i
  1. cfif
  2. cfimage
  3. cfimap
  4. cfimapfilter
  5. cfimpersonate
  6. cfimport
  7. cfinclude
  8. cfindex
  9. cfinput
  10. cfinsert
  11. cfinterface
  12. cfinvoke
  13. cfinvokeargument
8. Tags j-l
9. Tags m-o
10. Tags p-q
  1. cfparam
  2. cfpdf
  3. cfpdfform
  4. cfpdfformparam
  5. cfpdfparam
  6. cfpdfsubform
  7. cfpod
  8. cfpop
  9. cfpresentation
  10. cfpresentationslide
  11. cfpresenter
  12. cfprint
  13. cfprocessingdirective
  14. cfprocparam
  15. cfprocresult
  16. cfprogressbar
  17. cfproperty
  18. cfquery
  19. cfqueryparam
11. Tags r-s
  1. cfregistry
  2. cfreport
  3. cfreportparam
  4. cfrethrow
  5. cfreturn
  6. cfsavecontent
  7. cfschedule
  8. cfscript
  9. cfsearch
  10. cfselect
  11. cfservlet
  12. cfservletparam
  13. cfset
  14. cfsetting
  15. cfsharepoint
  16. cfsilent
  17. cfslider
  18. cfspreadsheet
  19. cfsprydataset
  20. cfstoredproc
  21. cfswitch
12. Tags t
  1. cftable
  2. cftextarea
  3. cftextinput
  4. cfthread
  5. cfthrow
  6. cftimer
  7. cftooltip
  8. cftrace
  9. cftransaction
  10. cftree
  11. cftreeitem
  12. cftry
13. Tags u-z
  1. cfupdate
  2. cfwddx
  3. cfwebsocket
  4. cfwindow
  5. cfxml
  6. cfzip
  7. cfzipparam
CFML Reference
1. Reserved words and variables
2. Ajax JavaScript functions
3. ColdFusion ActionScript functions
4. ColdFusion mobile functions
5. Application.cfc reference
6. Script functions implemented as CFCs
7. ColdFusion Flash Form style reference
8. ColdFusion event gateway reference
9. ColdFusion C++ CFX Reference
10. ColdFusion Java CFX reference
11. WDDX JavaScript Objects
Cloud services

Description

Creates and manipulates a Java and Enterprise Java Bean (EJB) object.

Syntax

<cfobject

class = "Java class"

type = "Java"

name = "instance name"

action = "create"

loadPaths= "path to jar"

<cfobject 
class = "Java class" 
type = "Java" 
name = "instance name" 
action = "create"
loadPaths= "path to jar"
>

Note:

You can specify this tag's attributes in an attributeCollection attribute whose value is a structure. Specify the structure name in the attributeCollection attribute and use the tag's attribute names as structure keys.

History

ColdFusion (2025 release): Added a new parameter, loadPaths. See example for more imformation.

Attributes

Attribute	Req/Opt	Default	Description
action	Optional	create	Only the default create action, which creates the object, is supported.
class	Required		The Java class.
name	Required		String; name for the instantiated component.
type	Required for Java		Object type. Must be java for Java and EJB objects.
loadPaths	Required for Java		A path to JAR or an array of file paths that contain Java classes or JAR files.

Usage

To call Java CFXs or Java objects, ColdFusion uses a Java Virtual Machine (JVM) that is embedded in the process. You can configure JVM loading, location, and settings in the ColdFusion Administrator.Any Java class available in the class path that is specified in the ColdFusion Administrator can be loaded and used from ColdFusion, by using the cfobject tag.

Access Java methods and fields

Call the cfobject tag, to load the class. See the example code.
Use the initmethod with appropriate arguments, to call a constructor. For example:

<cfset ret = myObj.init(arg1, arg2)>

Calling a public method on the object without first calling the init method results in an implicit call to the default constructor. Arguments and return values can be any Java type (simple, array, object). ColdFusion makes the conversions if strings are passed as arguments, but not if they are received as return values.Overloaded methods are supported if the number of arguments is different.

Calling EJBs

To create and call EJB objects, use the cfobject tag. In the second example in the following section, the WebLogic JNDI is used to register and find EJBHome instances.

Example

<!--- Example of a Java Object, this cfobject call loads the class MyClass

but does not create an instance object. Static methods and fields

are accessible after a call to cfobject. --->

<cfobject

action = "create"

type = "java"

class = "myclass"

name = "myobj">

<!---- Example of an EJB - The cfobject tag creates the Weblogic Environment

object, which is used to get InitialContext. The context object is

used to look up the EJBHome interface. The call to Create() results

in getting an instance of stateless session EJB. --->

<cfobject

action = "create"

type = "java"

class = "weblogic/jndi/Environment"

name = "wlEnv">

Share value = #value#

</cfoutput>

<cfobject action = "create" type = "java" class = "myclass" name = "myobj">  <cfobject action = "create" type = "java" class = "weblogic/jndi/Environment" name = "wlEnv"> <cfset ctx = wlEnv.getInitialContext()> <cfset ejbHome = ctx.lookup("statelessSession.TraderHome")> <cfset trader = ejbHome.Create()> <cfset value = trader.shareValue(20, 55.45)> <cfoutput> Share value = #value# </cfoutput> <cfset value = trader.remove()>

<!--- Example of a Java Object, this cfobject call loads the class MyClass 
but does not create an instance object. Static methods and fields 
are accessible after a call to cfobject. ---> 
<cfobject 
action = "create" 
type = "java" 
class = "myclass" 
name = "myobj"> 


<!---- Example of an EJB - The cfobject tag creates the Weblogic Environment 
object, which is used to get InitialContext. The context object is 
used to look up the EJBHome interface. The call to Create() results 
in getting an instance of stateless session EJB. ---> 

<cfobject 
action = "create" 
type = "java" 
class = "weblogic/jndi/Environment" 
name = "wlEnv"> 

<cfset ctx = wlEnv.getInitialContext()> 
<cfset ejbHome = ctx.lookup("statelessSession.TraderHome")> 
<cfset trader = ejbHome.Create()> 
<cfset value = trader.shareValue(20, 55.45)> 
<cfoutput> 
Share value = #value# 
</cfoutput> 
<cfset value = trader.remove()>

Example 1

Book.java

public class Book {

private String title;

public Book(String title) {

this.title = title;

}

public String getTitle() {

return title;

}

public class Book { private String title; public Book(String title) { this.title = title; } public String getTitle() { return title; } }

public class Book {
    private String title;

    public Book(String title) {
        this.title = title;
    }

    public String getTitle() {
        return title;
    }
}

File.cfm

path="#expandPath(".")#\MyApp.jar"

</cfscript>

<cfoutput>#initObj.getTitle()#</cfoutput>

<cfscript> path="#expandPath(".")#\MyApp.jar" </cfscript> <cfobject type="java" class="Book" name="obj" loadPaths="#["#ExpandPath(".")#"]#"> <cfset initObj = obj.init("ColdFusion Programming!!")> <cfoutput>#initObj.getTitle()#</cfoutput>

<cfscript>
    path="#expandPath(".")#\MyApp.jar"
</cfscript>

<cfobject type="java" class="Book" name="obj" loadPaths="#["#ExpandPath(".")#"]#">
<cfset initObj = obj.init("ColdFusion Programming!!")>
<cfoutput>#initObj.getTitle()#</cfoutput>

Example 2- loadPaths with cfobject and predefined class with fully qualified name

<cfoutput>#obj.getMessage()#</cfoutput>

<cfobject type="java" class="com.myapp.Test" name="obj" loadPaths="#["#ExpandPath(".")#"]#"> <cfoutput>#obj.getMessage()#</cfoutput>

<cfobject type="java" class="com.myapp.Test" name="obj" loadPaths="#["#ExpandPath(".")#"]#">
<cfoutput>#obj.getMessage()#</cfoutput>

Example 3- loadPaths with cfobject and predefined class without fully qualified name

<cfoutput>#obj.getMessage()#</cfoutput>

<cfoutput>#cfcatch.message#</cfoutput>

</cfcatch>

</cftry>

<cfobject type="java" class="Test" name="obj" loadPaths="#["#ExpandPath(".")#"]#"> <cfoutput>#obj.getMessage()#</cfoutput> <cfcatch> <cfset errorMsg = "Error message: #cfcatch.message#"> <cfoutput>#cfcatch.message#</cfoutput> </cfcatch> </cftry> <cfset error_msg = "The getMessage method was not found.">

<cfobject type="java" class="Test" name="obj" loadPaths="#["#ExpandPath(".")#"]#">
<cfoutput>#obj.getMessage()#</cfoutput>

<cfcatch>
    <cfset errorMsg = "Error message: #cfcatch.message#">
    <cfoutput>#cfcatch.message#</cfoutput>
</cfcatch>
</cftry>
<cfset error_msg = "The getMessage method was not found.">

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cfobject: Java or EJB object

Description

Syntax

See also

History

Attributes

Usage

Access Java methods and fields

Calling EJBs

Example

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