POE::Filter::XML::Node(3)

NAME
POE::Filter::XML::Node - A XML::LibXML::Element subclass that adds streaming semantics

VERSION
version 1.140700

SYNOPSIS
    use POE::Filter::XML::Node;

    my $node = POE::Filter::XML::Node->new('iq');

    $node->setAttributes(
        ['to', 'foo@other',
        'from', 'bar@other',
        'type', 'get']
    );

    my $query = $node->addNewChild('jabber:iq:foo', 'query');

    $query->appendTextChild('foo_tag', 'bar');

    say $node->toString();

    --

    (newlines and tabs for example only)

    <iq to='foo@other' from='bar@other' type='get'>
        <query xmlns='jabber:iq:foo'>
            <foo_tag>bar</foo_tag>
        </query>
    </iq>

DESCRIPTION
POE::Filter::XML::Node is a XML::LibXML::Element subclass that aims to provide a few extra convenience methods and light integration into a streaming context.

This module can be used to create arbitrarily complex XML data structures that know how to stringify themselves.

PUBLIC_ATTRIBUTES

  stream_[start|end]
    is: ro, isa: Bool, default: false

These two attributes define behaviors to toString() for the node. In the case of stream_start, this means dropping all children and merely leaving the tag unterminated (eg. <start>). For stream_end, it will drop any children and treat the tag like a terminator (eg. </end>).

Each attribute has a private writer ('_set_stream_[start|end]') if it necessary to manipulate these attributes post construction.

PUBLIC_METHODS

  override cloneNode
    (Bool $deep)

cloneNode is overriden to carry forward the stream_[end|start] attributes

  override toString
    (Bool $formatted)

toString was overridden to provide special stringification semantics for when stream_start or stream_end are boolean true.

  setAttributes
    (ArrayRef $array_of_tuples)

setAttributes() accepts a single arguement: an array reference. Basically you pair up all the attributes you want to be into the node (ie. [attrib, value]) and this method will process them using setAttribute(). This is just a convenience method.

If one of the attributes is 'xmlns', setNamespace() will be called with the value used as the $nsURI argument, with no prefix, and not activated.

 eg.
 ['xmlns', 'http://foo']
        |
        V
 setNamespace($value, '', 0)
        |
        V
 <node xmlns="http://foo"/>

  getAttributes
    returns (HashRef)

This method returns all of the attribute nodes on the Element (filtering out namespace declarations) as a HashRef.

  getFirstChildByTagName(Str $name)
    returns (Maybe[POE::Filter::XML::Node])

This is a convenience method that basically does:
 (getChildrenByTagName($name))[0]

  getChildrenHash
    returns (HashRef)

getChildrenHash() returns a hash reference to all the children of that node. Each key in the hash will be node name, and each value will be an array reference with all of the children with that name.

AUTHOR
Nicholas R. Perez <nperez@cpan.org>

COPYRIGHT AND LICENSE
This software is copyright (c) 2014 by Nicholas R. Perez <nperez@cpan.org>.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.