1SOAP::WSDL::Manual::FAQU(s3e)r Contributed Perl DocumentaStOiAoPn::WSDL::Manual::FAQ(3)
2
3
4

NAME

6       SOAP::WSDL::Manual::FAQ - Frequently Asked Questions (and answers)
7

Development status

9   Can I use SOAP::WSDL in a production environment?
10       Yes. SOAP::WSDL is used in production environments. You should - as
11       always - apply common sense and take appropriate safety measures,
12       especially if running SOAP::WSDL as a server.
13
14   Can I throw the WSDL away after generating?
15       Please don't. Future versions of SOAP::WSDL may require you to re-
16       generate interfaces in order to use them.
17

SOAP/WSDL Version and message styles

19   Which SOAP / WSDL versions does SOAP::WSDL support?
20       SOAP1.1 and WSDL1.1. SOAP1.2 and WSDL2 are not supported yet.
21
22   Which SOAP message Styles are supported?
23       document/literal.
24
25       The message / encoding styles rpc/encoded and rpc/literal are not
26       supported (rpc/literal is hardly used).
27
28       rpc/literal is not implemented yet.
29
30       Unfortunately, SOAP::WSDL can't even parse many rpc/encoded WSDL
31       definitions, and thus cannot inform you about unsupported message
32       styles in some situations.
33

Aren't rpc variants bad anyway?

35       No. They can be as well-defined and useful as the document/literal
36       variant.
37
38       The difference between rpc and document is that rpc SOAP messages have
39       an additional container named after the remote procedure called.
40
41       rpc/literal is RPC with named parameters, whereas rpc/encoded
42       corresponds to positional parameters.
43
44       rpc/encoded is prohibited by the WS-I Basic Profile. However,
45       rpc/encoded is still popular, especially for scripting languages like
46       perl, python or php.
47
48       You should probably use SOAP::Lite for rpc/encoded web services.
49
50       All the document/rpc literal/encoded discussion will cede with WSDL2.0:
51       These variants are dropped in favour of an extensible operation style
52       mechanism.
53

XML Parsing / Generation

55   Does SOAP::WSDL support namespaces?
56       Well, sort of. SOAP::WSDL can use WSDL definitions containing
57       namespaces, and emits SOAP messages with namespace information.
58
59       Its SOAP message parser however, is not namespace sensitive but uses
60       the pre-shared information from the WSDL for looking up what each XML
61       node means.
62
63       SOAP::WSDL can parse SOAP messages including namespace information up
64       to the point where equally named elements from different namespaces may
65       appear at the same position.
66
67       This is a long-standing feature request and will eventually be
68       resolved.
69
70   Validation
71       Does SOAP::WSDL perform XML Schema Validation?
72
73       No, SOAP::WSDL does not perform XML Schema Validation. It does,
74       however, enforce the correct structure on both XML and perl data.
75       Occurrence, ordering, value-spaces, and identity constraints are not
76       checked.
77
78       Does SOAP::WSDL perform XML Validation?
79
80       No, SOAP::WSDL does not perform XML Validation (that is, validation
81       against a DTD). WS-I prohibits the use of DTDs in WSDL definitions.
82
83       Isn't validation required for XML?
84
85       No. The XML Specification does not require validation from XML
86       processors.  It states how validating and non-validating parsers must
87       react on errors.
88
89       Note: Validation in the context of (only) XML actually means DTD
90       validation.
91
92       And doesn't XML Schema require validation?
93
94       The XML Schema specification requires conformant XML Schema processors
95       to be able to validate XML Schema constraints.
96
97       SOAP::WSDL is not a conformant XML Schema processor in this sense, as
98       it does not validate all XML Schema constraints.
99
100       And does SOAP require XML Schema Validation?
101
102       No. The SOAP1.1 note does not say anything about validation. The
103       SOAP1.2.  specification explicitly states that XML Schema validation is
104       not required for the SOAP envelope, and that applications may decide
105       whether they need XML Schema Validation for the SOAP payload or not.
106
107       The WSDL 1.1. specification does not mandate XML Schema validation. It
108       does actually not even mandate the use of XML Schema for type
109       definitions.
110
111   Can SOAP::WSDL parse SOAP message fragments?
112       No. SOAP::WSDL can parse neither well-formed nor not-well-formed SOAP
113       message chunks.
114

Persistence

116   Can I use Storable to freeze/thaw SOAP::WSDL's objects?
117       You can freeze almost all of SOAP::WSDL's objects. The only exceptions
118       are the objects used in parsing WSDL definitions itself - they cannot
119       be frozen.
120
121       Note that freezing/thawing inside-out objects comes with a performance
122       penalty and is at around the speed of XML generation/parsing.
123

Performance and memory consumption

125   How fast is SOAP::WSDL?
126       As of this writing, SOAP::WSDL is the fastest SOAP Client toolkit for
127       perl available on CPAN. There are no published server benchmarks yet.
128
129       If you need extra speed you can try SOAP::WSDL_XS available from
130       SOAP::WSDL's subversion repository at:
131
132       https://soap-wsdl.svn.sourceforge.net/svnroot/soap-wsdl/SOAP-WSDL_XS/trunk
133
134       Note however that SOAP::WSDL_XS is not very mature yet and only
135       suitable for use in trusted environments - you definitely should not
136       use it on a public internet SOAP server yet.
137
138       Note further that SOAP::WSDL's inside-out objects come with a big
139       performance penalty when freezing/thawing them with Storable.
140
141   There's a lot of perl modules generated. Don't they eat up all my memory?
142       SOAP::WSDL usually uses a bit more memory than SOAP::Lite, but less
143       than XML::Compile. Test if in question.
144
145
146
147perl v5.32.0                      2020-07-28        SOAP::WSDL::Manual::FAQ(3)
Impressum