Man page of Net::DBus::Binding::Introspector

Net::DBus::Binding::Introspector

Section: User Contributed Perl Documentation (3pm)

Updated: 2011-06-30

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NAME

Net::DBus::Binding::Introspector - Handler for object introspection data

SYNOPSIS

  # Create an object populating with info from an
  # XML doc containing introspection data.

  my $ins = Net::DBus::Binding::Introspector->new(xml => $data);

  # Create an object, defining introspection data
  # programmatically
  my $ins = Net::DBus::Binding::Introspector->new(object_path => $object->get_object_path);
  $ins->add_method("DoSomething", ["string"], [], "org.example.MyObject");
  $ins->add_method("TestSomething", ["int32"], [], "org.example.MyObject");

DESCRIPTION

This class is responsible for managing introspection data, and answering questions about it. This is not intended for use by application developers, whom should instead consult the higher level API in Net::DBus::Exporter.

METHODS

my $ins = Net
:DBus::Binding::Introspector->new(object_path => $object_path, xml => $xml);:Creates a new introspection data manager for the object registered at the path specified for the
 "object_path"
parameter. The optional
 "xml"
parameter can be used to pre-load the manager with introspection metadata from an XML document.:
$ins->add_interface($name)
Register the object as providing an interface with the name
 $name
:
my $bool = $ins->has_interface($name)
Return a true value if the object is registered as providing an interface with the name
 $name
; returns false otherwise.:
my @interfaces = $ins->has_method($name, [$interface])
Return a list of all interfaces provided by the object, which contain a method called
 $name
. This may be an empty list. The optional
 $interface
parameter can restrict the check to just that one interface.:
my $boolean = $ins->is_method_allowed($name[, $interface])
Checks according to whether the remote caller is allowed to invoke the method
 $name
on the object associated with this introspector. If this object has 'strict exports' enabled, then only explicitly exported methods will be allowed. The optional
 $interface
parameter can restrict the check to just that one interface. Returns a non-zero value if the method should be allowed.:
my @interfaces = $ins->has_signal($name)
Return a list of all interfaces provided by the object, which contain a signal called
 $name
. This may be an empty list.:
my @interfaces = $ins->has_property($name)
Return a list of all interfaces provided by the object, which contain a property called
 $name
. This may be an empty list. The optional
 $interface
parameter can restrict the check to just that one interface.:
$ins->add_method($name, $params, $returns, $interface, $attributes, $paramnames, $returnnames);
Register the object as providing a method called
 $name
accepting parameters whose types are declared by
 $params
and returning values whose type are declared by
 $returns
. The method will be scoped to the inteface named by
 $interface
. The
 $attributes
parameter is a hash reference for annotating the method. The
 $paramnames
and
 $returnames
parameters are a list of argument and return value names.:
$ins->add_signal($name, $params, $interface, $attributes);
Register the object as providing a signal called
 $name
with parameters whose types are declared by
 $params
. The signal will be scoped to the inteface named by
 $interface
. The
 $attributes
parameter is a hash reference for annotating the signal.:
$ins->add_property($name, $type, $access, $interface, $attributes);
Register the object as providing a property called
 $name
with a type of
 $type
. The
 $access
parameter can be one of
 "read"
,
 "write"
, or
 "readwrite"
. The property will be scoped to the inteface named by
 $interface
. The
 $attributes
parameter is a hash reference for annotating the signal.:
my $boolean = $ins->is_method_deprecated($name, $interface)
Returns a true value if the method called
 $name
in the interface
 $interface
is marked as deprecated:
my $boolean = $ins->is_signal_deprecated($name, $interface)
Returns a true value if the signal called
 $name
in the interface
 $interface
is marked as deprecated:
my $boolean = $ins->is_property_deprecated($name, $interface)
Returns a true value if the property called
 $name
in the interface
 $interface
is marked as deprecated:
my $boolean = $ins->does_method_reply($name, $interface)
Returns a true value if the method called
 $name
in the interface
 $interface
will generate a reply. Returns a false value otherwise.:
my @names = $ins->list_interfaces
Returns a list of all interfaces registered as being provided by the object.:
my @names = $ins->list_methods($interface)
Returns a list of all methods registered as being provided by the object, within the interface
 $interface
.:
my @names = $ins->list_signals($interface)
Returns a list of all signals registered as being provided by the object, within the interface
 $interface
.:
my @names = $ins->list_properties($interface)
Returns a list of all properties registered as being provided by the object, within the interface
 $interface
.:
my @paths = $self->list_children;
Returns a list of object paths representing all the children of this node.:
my $path = $ins->get_object_path
Returns the path of the object associated with this introspection data:
my @types = $ins->get_method_params($interface, $name)
Returns a list of declared data types for parameters of the method called
 $name
within the interface
 $interface
.:
my @types = $ins->get_method_param_names($interface, $name)
Returns a list of declared names for parameters of the method called
 $name
within the interface
 $interface
.:
my @types = $ins->get_method_returns($interface, $name)
Returns a list of declared data types for return values of the method called
 $name
within the interface
 $interface
.:
my @types = $ins->get_method_return_names($interface, $name)
Returns a list of declared names for return values of the method called
 $name
within the interface
 $interface
.:
my @types = $ins->get_signal_params($interface, $name)
Returns a list of declared data types for values associated with the signal called
 $name
within the interface
 $interface
.:
my @types = $ins->get_signal_param_names($interface, $name)
Returns a list of declared names for values associated with the signal called
 $name
within the interface
 $interface
.:
my $type = $ins->get_property_type($interface, $name)
Returns the declared data type for property called
 $name
within the interface
 $interface
.:
my $bool = $ins->is_property_readable($interface, $name);
Returns a true value if the property called
 $name
within the interface
 $interface
can have its value read.:
my $bool = $ins->is_property_writable($interface, $name);
Returns a true value if the property called
 $name
within the interface
 $interface
can have its value written to.:
my $xml = $ins->format([$obj])
Return a string containing an XML document representing the state of the introspection data. The optional
 $obj
parameter can be an instance of Net::DBus::Object to include object specific information in the XML (eg child nodes).:
my $xml_fragment = $ins->to_xml
Returns a string containing an XML fragment representing the state of the introspection data. This is basically the same as the
 "format"
method, but without the leading doctype declaration.:
$type = $ins->to_xml_type($type)
Takes a text-based representation of a data type and returns the compact representation used in XML introspection data.:
$ins->encode($message, $type, $name, $direction, @args)
Append a set of values <@args> to a message object
 $message
. The
 $type
parameter is either
 &quot;signal&quot;
or
 &quot;method&quot;
and
 $direction
is either
 &quot;params&quot;
or
 &quot;returns&quot;
. The introspection data will be queried to obtain the declared data types & the argument marshalling accordingly.:
my @args = $ins->decode($message, $type, $name, $direction)
Unmarshalls the contents of a message object
 $message
. The
 $type
parameter is either
 &quot;signal&quot;
or
 &quot;method&quot;
and
 $direction
is either
 &quot;params&quot;
or
 &quot;returns&quot;
. The introspection data will be queried to obtain the declared data types & the arguments unmarshalled accordingly.:

AUTHOR

Daniel P. Berrange

COPYRIGHT

Copyright (C) 2004-2011 Daniel P. Berrange

SEE ALSO

Net::DBus::Exporter, Net::DBus::Binding::Message


Index

NAME

SYNOPSIS

DESCRIPTION

METHODS

AUTHOR

COPYRIGHT

SEE ALSO