1Net::DBus::Binding::IntUrsoesrpeCcotnotrr(i3b)uted PerlNDeotc:u:mDeBnutsa:t:iBoinnding::Introspector(3)
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6 Net::DBus::Binding::Introspector - Handler for object introspection
7 data
8
10 # Create an object populating with info from an
11 # XML doc containing introspection data.
12 my $ins = Net::DBus::Binding::Introspector->new(xml => $data);
14 # Create an object, defining introspection data
16 # programmatically
17 my $ins = Net::DBus::Binding::Introspector->new(object_path => $object->get_object_path);
18 $ins->add_method("DoSomething", ["string"], [], "org.example.MyObject");
19 $ins->add_method("TestSomething", ["int32"], [], "org.example.MyObject");
20
22 This class is responsible for managing introspection data, and
23 answering questions about it. This is not intended for use by
24 application developers, whom should instead consult the higher level
25 API in Net::DBus::Exporter.
26
28 my $ins = Net::DBus::Binding::Introspector->new(object_path =>
29 $object_path, xml => $xml);
30 Creates a new introspection data manager for the object registered
31 at the path specified for the "object_path" parameter. The optional
32 "xml" parameter can be used to pre-load the manager with
33 introspection metadata from an XML document.
34 $ins->add_interface($name)
36 Register the object as providing an interface with the name $name
37 my $bool = $ins->has_interface($name)
39 Return a true value if the object is registered as providing an
40 interface with the name $name; returns false otherwise.
41 my @interfaces = $ins->has_method($name, [$interface])
43 Return a list of all interfaces provided by the object, which
44 contain a method called $name. This may be an empty list. The
45 optional $interface parameter can restrict the check to just that
46 one interface.
47 my $boolean = $ins->is_method_allowed($name[, $interface])
49 Checks according to whether the remote caller is allowed to invoke
50 the method $name on the object associated with this introspector.
51 If this object has 'strict exports' enabled, then only explicitly
52 exported methods will be allowed. The optional $interface parameter
53 can restrict the check to just that one interface. Returns a non-
54 zero value if the method should be allowed.
55 my @interfaces = $ins->has_signal($name)
57 Return a list of all interfaces provided by the object, which
58 contain a signal called $name. This may be an empty list.
59 my @interfaces = $ins->has_property($name)
61 Return a list of all interfaces provided by the object, which
62 contain a property called $name. This may be an empty list. The
63 optional $interface parameter can restrict the check to just that
64 one interface.
65 $ins->add_method($name, $params, $returns, $interface, $attributes,
67 $paramnames, $returnnames);
68 Register the object as providing a method called $name accepting
69 parameters whose types are declared by $params and returning values
70 whose type are declared by $returns. The method will be scoped to
71 the inteface named by $interface. The $attributes parameter is a
72 hash reference for annotating the method. The $paramnames and
73 $returnames parameters are a list of argument and return value
74 names.
75 $ins->add_signal($name, $params, $interface, $attributes);
77 Register the object as providing a signal called $name with
78 parameters whose types are declared by $params. The signal will be
79 scoped to the inteface named by $interface. The $attributes
80 parameter is a hash reference for annotating the signal.
81 $ins->add_property($name, $type, $access, $interface, $attributes);
83 Register the object as providing a property called $name with a
84 type of $type. The $access parameter can be one of "read", "write",
85 or "readwrite". The property will be scoped to the inteface named
86 by $interface. The $attributes parameter is a hash reference for
87 annotating the signal.
88 my $boolean = $ins->is_method_deprecated($name, $interface)
90 Returns a true value if the method called $name in the interface
91 $interface is marked as deprecated
92 my $boolean = $ins->is_signal_deprecated($name, $interface)
94 Returns a true value if the signal called $name in the interface
95 $interface is marked as deprecated
96 my $boolean = $ins->is_property_deprecated($name, $interface)
98 Returns a true value if the property called $name in the interface
99 $interface is marked as deprecated
100 my $boolean = $ins->does_method_reply($name, $interface)
102 Returns a true value if the method called $name in the interface
103 $interface will generate a reply. Returns a false value otherwise.
104 my $boolean = $ins->method_has_strict_exceptions($name, $interface)
106 Returns true if the method called $name in the interface $interface
107 has the strict_exceptions attribute; that is any exceptions which
108 aren't Net::DBus::Error objects should not be caught and allowed to
109 travel up the stack.
110 my @names = $ins->list_interfaces
112 Returns a list of all interfaces registered as being provided by
113 the object.
114 my @names = $ins->list_methods($interface)
116 Returns a list of all methods registered as being provided by the
117 object, within the interface $interface.
118 my @names = $ins->list_signals($interface)
120 Returns a list of all signals registered as being provided by the
121 object, within the interface $interface.
122 my @names = $ins->list_properties($interface)
124 Returns a list of all properties registered as being provided by
125 the object, within the interface $interface.
126 my @paths = $self->list_children;
128 Returns a list of object paths representing all the children of
129 this node.
130 my $path = $ins->get_object_path
132 Returns the path of the object associated with this introspection
133 data
134 my @types = $ins->get_method_params($interface, $name)
136 Returns a list of declared data types for parameters of the method
137 called $name within the interface $interface.
138 my @types = $ins->get_method_param_names($interface, $name)
140 Returns a list of declared names for parameters of the method
141 called $name within the interface $interface.
142 my @types = $ins->get_method_returns($interface, $name)
144 Returns a list of declared data types for return values of the
145 method called $name within the interface $interface.
146 my @types = $ins->get_method_return_names($interface, $name)
148 Returns a list of declared names for return values of the method
149 called $name within the interface $interface.
150 my @types = $ins->get_signal_params($interface, $name)
152 Returns a list of declared data types for values associated with
153 the signal called $name within the interface $interface.
154 my @types = $ins->get_signal_param_names($interface, $name)
156 Returns a list of declared names for values associated with the
157 signal called $name within the interface $interface.
158 my $type = $ins->get_property_type($interface, $name)
160 Returns the declared data type for property called $name within the
161 interface $interface.
162 my $bool = $ins->is_property_readable($interface, $name);
164 Returns a true value if the property called $name within the
165 interface $interface can have its value read.
166 my $bool = $ins->is_property_writable($interface, $name);
168 Returns a true value if the property called $name within the
169 interface $interface can have its value written to.
170 my $xml = $ins->format([$obj])
172 Return a string containing an XML document representing the state
173 of the introspection data. The optional $obj parameter can be an
174 instance of Net::DBus::Object to include object specific
175 information in the XML (eg child nodes).
176 my $xml_fragment = $ins->to_xml
178 Returns a string containing an XML fragment representing the state
179 of the introspection data. This is basically the same as the
180 "format" method, but without the leading doctype declaration.
181 $type = $ins->to_xml_type($type)
183 Takes a text-based representation of a data type and returns the
184 compact representation used in XML introspection data.
185 $ins->encode($message, $type, $name, $direction, @args)
187 Append a set of values <@args> to a message object $message. The
188 $type parameter is either "signal" or "method" and $direction is
189 either "params" or "returns". The introspection data will be
190 queried to obtain the declared data types & the argument
191 marshalling accordingly.
192 my @args = $ins->decode($message, $type, $name, $direction)
194 Unmarshalls the contents of a message object $message. The $type
195 parameter is either "signal" or "method" and $direction is either
196 "params" or "returns". The introspection data will be queried to
197 obtain the declared data types & the arguments unmarshalled
198 accordingly.
199
201 Daniel P. Berrange
202
204 Copyright (C) 2004-2011 Daniel P. Berrange
205
207 Net::DBus::Exporter, Net::DBus::Binding::Message
208perl v5.30.0 2019-07-26Net::DBus::Binding::Introspector(3)