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native::Delta(3)                     User Contributed Perl Documentation                    native::Delta(3)



NAME
       SVN::Delta - Subversion delta functions

SYNOPSIS
           require SVN::Core;
           require SVN::Repos;
           require SVN::Delta;

           # driving an editor
           my $editor = SVN::Delta::Editor->
               new(SVN::Repos::get_commit_editor($repos, "file://$repospath",
                                                 '/', 'root', 'FOO', \&committed));

           my $rootbaton = $editor->open_root(0);

           my $fbaton = $editor->add_file('filea', $rootbaton,
                                          undef, -1);

           my $ret = $editor->apply_textdelta($fbaton, undef);
           SVN::TxDelta::send_string("FILEA CONTENT", @$ret);

           # implement an editor in perl
           SVN::Repos::dir_delta($root1, $path, undef,
                                 $root2, $path,
                                 SVN::Delta::Editor->new(_debug=>1),
                                 1, 1, 0, 1

DESCRIPTION
       SVN::Delta wraps delta related function in subversion. The most important one is SVN::Delta::Editor,
       the interface for describing tree deltas. by default SVN::Delta::Editor relays method calls to its
       internal member "_editor", which could either be an editor in C (such as the one you get from
       get_commit_editor), or another SVN::Delta::Editor object.

SVN::Delta::Editor
   Driving Editors
       If you want to drive a native editor (such as commit_editor obtained by
       SVN::Repos::get_commit_editor), create a SVN::Delta::Editor object with the native editor/baton pair.
       The object will then be ready to use and its method calls will be relayed to the native editor.

   Implementing Editors
       If you want to implement an editor, subclass SVN::Delta::Editor and implement the editors callbacks.
       see the METHODS section below.

   CONSTRUCTOR - new(...)
       new($editor, $editor_baton)
           Link to the native editor

       You can also pass a hash array to new:

       _debug
           Turn on debug.

       _editor
           An arrayref of the editor/baton pair or another SVN::Delta::Editor object to link with.

   METHODS
       Please consult the svn_delta.h section in the Subversion API. Member functions of svn_delta_editor_t
       could be called as methods of SVN::Delta::Editor objects, with the edit_baton omitted. The pool is
       also optional.

       If you are subclassing, the methods take exactly the same arguments as the member functions (note
       that void ** are returned data though as throughout the perl bindings), with the edit_baton omitted.

BUGS
       Functions returning editor/baton pair should really be typemapped to a SVN::Delta::Editor object.

AUTHORS
       Chia-liang Kao <clkao@clkao.org>

COPYRIGHT
           Licensed to the Apache Software Foundation (ASF) under one
           or more contributor license agreements.  See the NOTICE file
           distributed with this work for additional information
           regarding copyright ownership.  The ASF licenses this file
           to you under the Apache License, Version 2.0 (the
           "License"); you may not use this file except in compliance
           with the License.  You may obtain a copy of the License at

             http://www.apache.org/licenses/LICENSE-2.0

           Unless required by applicable law or agreed to in writing,
           software distributed under the License is distributed on an
           "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
           KIND, either express or implied.  See the License for the
           specific language governing permissions and limitations
           under the License.



perl v5.16.2                                     2011-07-16                                 native::Delta(3)