157:-marshalling a dry object "on the server side" ie. demarshalling (or unmarshalling) to get a live object back: the serialized object is transformed into an internal data structure ie. a live object within the target runtime. It usually corresponds to the exact inverse process of marshalling, although sometimes both ends of the process trigger specific business logic.
1005:
When the root element is not declared globally, the application assists the unmarshaller by application-provided mapping using declaredType parameters. By an order of precedence, even if the root name has a mapping to an appropriate JAXB class, the declaredType overrides the mapping. However, if the
231:
here refers to a list of URLs where the object code can be loaded from, and not source code). Hence, in order to convert the object state and codebase(s), unmarshalling must be done. The unmarshaller interface automatically converts the marshalled data containing codebase(s) into an executable Java
978:
Unmarshal methods can deserialize an entire XML document or a small part of it. When the XML root element is globally declared, these methods utilize the JAXBContext's mapping of XML root elements to JAXB mapped classes to initiate the unmarshalling. If the mappings are not sufficient and the root
410:
While this typically results in a verbose wire format, XML's fully-bracketed "start-tag", "end-tag" syntax allows provision of more accurate diagnostics and easier recovery from transmission or disk errors. In addition, because the tags occur repeatedly, one can use standard compression methods to
236:
To "marshal" an object means to record its state and codebase(s) in such a way that when the marshalled object is "unmarshalled," a copy of the original object is obtained, possibly by automatically loading the class definitions of the object. You can marshal any object that is serializable or
141:
Serialization does not necessarily have this same intent, since it is only concerned about transforming data to generate that intermediate, "dry" representation of the object (for example, into a stream of bytes) which could then be either reified in a different runtime, or simply stored in a
864:
Unmarshalling is the process of converting the XML representation of Code
Snippet 1 to the default executable Java representation of Code Snippet 2, and running that very code to get a consistent, live object back. Had a different format been chosen, the unmarshalling process would have been
184:" an object means to convert its state into a byte stream in such a way that the byte stream may be converted back into a copy of the object, which is unmarshalling in essence. Different programming languages either make or don’t make the distinction between the two concepts. A few examples:
987:
The unmarshal method uses JAXBContext to unmarshal the XML data, when the root element is globally declared. The JAXBContext object always maintains a mapping of the globally declared XML element and its name to a JAXB mapped class. If the XML element name or its
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Any object whose methods can be invoked must implement the java.rmi.Remote interface. When such an object is invoked, its arguments are marshalled and sent from the local virtual machine to the remote one, where the arguments are unmarshalled and
382:
is full of rendering data, the API could simply store the requested rendering call in a temporary buffer and, when the command buffer is close to being empty, it can perform a switch to kernel-mode and add a number of stored commands all at once.
237:
remote (that is, implements the java.rmi.Remote interface). Marshalling is like serialization, except marshalling also records codebases. Marshalling is different from serialization in that marshalling treats remote objects specially.
402:
is one such format and means of transferring data between systems. Microsoft, for example, uses it as the basis of the file formats of the various components (Word, Excel, Access, PowerPoint, etc.) of the
Microsoft Office suite (see
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attribute matches the JAXB mapped class, the unmarshal method transforms the XML data using the appropriate JAXB mapped class. However, if the XML element name has no match, the unmarshal process will abort and throw an
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developers to marshal and unmarshal C# objects. One of the advantages of C# over Java is that C# natively supports marshalling due to the inclusion of XmlSerializer class. Java, on the other hand requires a non-native
137:
allowing the object’s structure, data and state to transit from a runtime to another, leveraging an intermediate, serialized, "dry" representation (which is of second importance) circulating onto the communication
366:
to complete. During this time, the CPU is unable to perform any operations. As such, minimizing the number of times this switching operation must be performed would optimize performance to a substantive degree.
422:
Once the data is transferred to a program or an application, it needs to be converted back to an object for usage. Hence, unmarshalling is generally used in the receiver end of the implementations of
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attribute of the XML data has a mapping to an appropriate JAXB class, then this takes precedence over declaredType parameter. The unmarshal methods by declaredType parameters always return a
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is the most common framework used by developers to marshal and unmarshal Java objects. JAXB provides for the interconversion between fundamental data types supported by Java and standard
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An example of unmarshalling is the conversion of an XML representation of an object to the default representation of the object in any programming language. Consider the following class:
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The process of unmarshalling XML data into an executable Java object is taken care of by the in-built
Unmarshaller class. The unmarshal methods defined in the Unmarshaller class are
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When you marshal an object by value, a copy of the object is created and serialized to the server. Any method calls made on that object are done on the server
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elements are declared locally, the unmarshal methods use declaredType methods for the unmarshalling process. These two approaches can be understood below.
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Marshalling data requires some kind of data transfer, which leverages a specific data format to be chosen as the serialization target.
191:, the term "marshal" is used for a specific type of "serialization" in the Python standard library – storing internal python objects:
146:
Marshalling and serialization might thus be done differently, although some form of serialization is usually used to do marshalling.
1103:
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Linux OpenGL drivers are split in two: a kernel-driver and a user-space driver. The user-space driver does all the translation of
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The marshal module exists mainly to support reading and writing the “pseudo-compiled” code for Python modules of .pyc files.
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object in JAXB. Any object that can be deserialized can be unmarshalled. However, the converse need not be true.
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taken as abstract, mirrored concepts mapping to any matching ends of an arbitrary communication link ie.
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419:(JavaScript Object Notation) are more concise, but correspondingly less robust for error recovery.
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378:. To reduce the number of system calls, the user-space driver implements marshalling. If the GPU's
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to accept XML from different types of input such as a File, FileInputStream, or URL. For example:
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This is an issue because calling kernel-mode operations from user-mode requires performing a
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300:(COM), interface pointers must be marshalled when crossing COM apartment boundaries. In the
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Additionally, marshalling is used extensively within scripts and applications that use the
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404:
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97:, although technically serialization is one step in the process of marshalling an object.
271:
How To
Marshal an Object to a Remote Server by Value by Using Visual Basic .NET (Q301116)
379:
301:
169:
114:
63:
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If you’re serializing and de-serializing Python objects, use the pickle module instead
117:). The point with marshalling an object is to have that object that is present in one
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browser is a popular application built with this framework, that additionally allows
181:
94:
1319:
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The accurate definition of marshalling differs across programming languages such as
55:
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process, is also an example of an action that requires marshalling to take place.
1218:"How To Marshal an Object to a Remote Server by Value by Using Visual Basic .NET"
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to switch to "kernel mode". This is a slow operation, taking on the order of
17:
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66:. It is typically used when data must be moved between different parts of a
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instance. The properties of this JAXBElement instance are set as follows:
430:(RPC) mechanisms to unmarshal transmitted objects in an executable form.
344:
101:
Marshalling is describing the overall intent or process to transfer some
249:
Schema for
Representing Java(tm) Objects in an LDAP Directory (RFC 2713)
1303:
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different, but the end result in the target runtime would be the same.
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Marshalling simplifies complex communications, because it allows using
1195:
997:. This can be avoided by using the unmarshal by declaredType methods.
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172:, and in some contexts, is used interchangeably with serialization.
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285:(RPC) mechanisms, where it is necessary to transport data between
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Free and open-source graphics device driver#Software architecture
343:
family of operating systems the entire set of device drivers for
691:<?xml version="1.0" encoding="UTF-8"?>
416:
258:, marshalling is also used to refer to serialization when using
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1196:"Schema for Representing Java(tm) Objects in an LDAP Directory"
1130:"What is the difference between Serialization and Marshaling?"
411:
shrink the content—all the Office file formats are created by
399:
351:
is handled by the DirectX runtime provided by
Microsoft.
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to use XPCOM through XPConnect (Cross-Platform
Connect).
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Marshalling is used within implementations of different
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are kernel-mode drivers. The user-mode portion of the
223:, marshalling is used when serializing objects for
374:commands into machine code to be submitted to the
1320:https://docs.fileformat.com/word-processing/docx/
304:, the conversion between an unmanaged type and a
1174:"marshal — Internal Python object serialization"
1152:"marshal — Internal Python object serialization"
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1333:"Binding XML Schemas - The Java EE 5 Tutorial"
176:Marshalling in different programming languages
93:Marshalling is similar to or synonymous with
8:
470:in the form of JAXB to support marshalling.
1305:Code Quality: The Open Source Perspective
415:the raw XML. Alternative formats such as
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474:From XML to an executable representation
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461:XmlSerializer is the framework used by
105:object from a client to a server (with
1220:. Microsoft. July 2004. Archived from
27:Computer memory transformation process
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1244:"Apartments and COM Threading Models"
46:) is the process of transforming the
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983:Unmarshal a global XML root element
125:program; that is, an object on the
1001:Unmarshal a local XML root element
741:Executable representation of that
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1104:Java Architecture for XML Binding
675:XML representation of a specific
358:, and this inevitably forces the
319:technologies provided within the
70:or from one program to another.
54:into a data format suitable for
1357:"Using the XmlSerializer Class"
1273:Windows Desktop App Development
1269:"CoInitializeEx function (COM)"
1012:JAXBElement<declaredType>
79:instead of being restricted to
62:, especially between different
142:database, a file or in memory.
121:program be present in another
1:
688:<!-- Code Snippet 1 -->
321:Mozilla application framework
129:should be transferred to the
89:Comparison with serialization
1176:. Python Software Foundation
1154:. Python Software Foundation
1384:"Unmarshaller (JAXB 2.2.3)"
1292:Interop Marshaling Overview
1066:(actual size is not known)
206:The Python Standard Library
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1432:"JAXBElement (JAXB 2.2.3)"
1408:"JAXBContext (JAXB 2.2.3)"
1132:. Stack Exchange Network
908:"com.acme.foo"
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424:Remote Method Invocation
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153:is somewhat similar to
1322:Accessed Oct 13, 2020.
1084:Component Object Model
974:Unmarshalling XML Data
298:Component Object Model
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1467:Remote procedure call
1318:What is a DOCX file?
1020:JAXBElement Property
965:"input.xml"
869:Unmarshalling in Java
802:"Jayaraman"
428:Remote procedure call
283:remote procedure call
50:representation of an
1198:. IETF. October 1999
874:Unmarshaller in JAXB
722:"21345589"
700:"11235813"
329:scripting languages
133:which is a form of
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277:Usage and examples
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856:"Shyam"
751:// Code Snippet 2
445:Architecture for
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716:<student
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447:XML Binding
356:system call
135:reification
44:US spelling
36:marshalling
1456:Categories
1441:2016-09-23
1417:2016-09-23
1393:2016-09-14
1366:2016-09-23
1342:2016-09-14
1278:2013-02-22
1254:2009-06-19
1228:4 November
1202:4 November
1158:4 November
1115:References
1055:parameter
880:overloaded
451:XML schema
426:(RMI) and
40:marshaling
1180:9 October
1008:@xsi:type
990:@xsi:type
950:unmarshal
708:Jayaraman
468:glue code
287:processes
215:-related
182:serialize
149:The term
1073:See also
838:21345589
784:11235813
345:Direct3D
310:P/Invoke
269:—
247:—
229:codebase
204:—
64:runtimes
1136:23 July
850:setName
820:Student
808:Student
796:setName
766:Student
754:Student
745:object:
743:Student
677:Student
588:setName
525:getName
507:private
495:private
489:Student
413:zipping
387:Formats
339:In the
335:Example
291:threads
211:In the
138:socket.
131:server,
123:running
119:running
115:sockets
56:storage
1060:scope
1038:value
1023:Value
935:Object
679:object
594:String
567:return
552:public
534:return
522:String
519:public
483:public
372:OpenGL
323:. The
219:
189:Python
168:, and
162:Python
127:client
111:server
107:client
52:object
48:memory
1089:CORBA
1028:name
832:setID
778:setID
730:Shyam
630:setID
558:getID
486:class
317:XPCOM
244:used.
1230:2016
1204:2016
1182:2019
1160:2016
1138:2021
1064:null
959:File
944:umar
923:jcon
917:umar
890:jcon
725:>
703:>
648:this
627:void
618:name
612:name
606:this
597:name
585:void
570:this
543:name
537:this
501:name
498:char
443:Java
439:JAXB
434:JAXB
417:JSON
407:).
256:.NET
221:2713
213:Java
180:To "
170:.NET
166:Java
109:and
103:live
968:));
956:new
938:obj
932:();
823:();
817:new
769:();
763:new
719:id=
697:id=
636:int
555:int
510:int
441:or
400:XML
376:GPU
360:CPU
349:API
306:CLR
254:In
217:RFC
187:In
85:.
58:or
38:or
30:In
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