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## org.tmatesoft.svn.core.io
Interface ISVNEditor

All Superinterfaces:
  ISVNDeltaConsumer

All Known Implementing Classes:
  SVNReplicationEditor

public interface ISVNEditor
extends ISVNDeltaConsumer

The ISVNEditor interface is used by SVNRepository to update versioned files/dirs, check out files/dirs from a repository, commit changes to a repository, take status of files/dirs, get differences between files.

When used for updating (checking out, getting differences or status), an implementor should provide its own appropriate implementation of the ISVNEditor interface along with a reporter baton (ISVNReposrterBaton) to a corresponding method of an SVNRepository driver. Reporter baton will be used to describe the state of local dirs/files - their current revisions, whether a file/dir is deleted or switched. An editor is invoked after the reporter baton finishes its work. It is used to "edit" the state of files/dirs, where "edit" may mean anything: applying changes in updating, switching, checking out (what really changes the state), or handling changes in getting status or differences (what is only used to inform about, show, separately store changes, and so on). The concrete behaviour of the editor is implemented by the provider of that editor.

The other kind of using ISVNEditor is committing changes to a repository. Here an editor is given to a caller, and the caller himself describes the changes of local files/dirs. All that collected info is then committed in a single transaction when a caller invokes the `closeEdit()` method of the editor. For more information on using editors, please, read these on-line articles:

- Using ISVNReporter/ISVNEditor in update-related operations
- Using ISVNEditor in commit operations

Since:
  1.2
Version:
  1.3
Author:
  TMate Software Ltd.
See Also:
  `ISVNReporterBaton`, Examples

Method Summary
`void` | `abortEdit()` Aborts the current running editor due to errors occured.
`void` | `absentDir(String path)` Indicates that a path is present as a subdirectory in the edit source, but can not be conveyed to the edit consumer (perhaps because of authorization restrictions).
`void` | `absentFile(String path)` Indicates that a path is present as a file in the edit source, but can not be conveyed to the edit consumer (perhaps because of authorization restrictions).
`void` | `addDir(String path, String copyFromPath, long copyFromRevision)` Adds a directory.
`void` | `addFile(String path, String copyFromPath, long copyFromRevision)` Adds a file.
`void` | `changeDirProperty(String name, SVNPropertyValue value)` Changes the value of a property of the currently opened/added directory.
`void` | `changeFileProperty(String path, String propertyName, SVNPropertyValue propertyValue)` Changes the value of a property of the currently opened/added file.
`void` | `closeDir()` Closes the currently opened directory fixing all changes of its properties and/or entries.
`SVNCommitInfo` | `closeEdit()` Closes this editor finalizing the whole operation the editor was used for.
`void` | `closeFile(String path, String textChecksum)` Closes the opened file fixing all properties and/or contents changes.
`void` | `deleteEntry(String path, long revision)` Deletes an entry.
`void` | `openDir(String path, long revision)` Opens a directory.
`void` | `openFile(String path, long revision)` Opens a file.
`void` | `openRoot(long revision)` Opens the root directory on which the operation was invoked.
`void` | `targetRevision(long revision)` Sets the target revision the operation is running for.

Methods inherited from interface org.tmatesoft.svn.core.io.ISVNDeltaConsumer
`applyTextDelta, textDeltaChunk, textDeltaEnd`

Method Detail

### targetRevision

    public void targetRevision(long revision)
                        throws SVNException

  Sets the target revision the operation is running for. For example, the target revision to which an update is running.

  Parameters:
    `revision` - a revision number
  Throws:
    `SVNException`

### openRoot

    public void openRoot(long revision)
                  throws SVNException

  Opens the root directory on which the operation was invoked. All property changes as well as entries adding/deletion will be applied to this root directory. When coming back up to this root (after traversing the entire tree) you should close the root by calling `closeDir()`.

  Parameters:
    `revision` - the revision number of the root directory
  Throws:
    `SVNException`

### deleteEntry

    public void deleteEntry(String path,
                            long revision)
                     throws SVNException

  Deletes an entry.

  In a commit - deletes an entry from a repository. In an update - deletes an entry locally (since it has been deleted in the repository). In a status - informs that an entry has been deleted.

  Parameters:
    `path` - an entry path relative to the root directory opened by `openRoot()`
    `revision` - the revision number of `path`
  Throws:
    `SVNException`

### absentDir

    public void absentDir(String path)
                   throws SVNException

  Indicates that a path is present as a subdirectory in the edit source, but can not be conveyed to the edit consumer (perhaps because of authorization restrictions).

  Parameters:
    `path` - a dir path relative to the root directory opened by `openRoot()`
  Throws:
    `SVNException`

### absentFile

    public void absentFile(String path)
                    throws SVNException

  Indicates that a path is present as a file in the edit source, but can not be conveyed to the edit consumer (perhaps because of authorization restrictions).

  Parameters:
    `path` - a file path relative to the root directory opened by `openRoot()`
  Throws:
    `SVNException`

### addDir

    public void addDir(String path,
                       String copyFromPath,
                       long copyFromRevision)
                throws SVNException

  Adds a directory.

  In a commit - adds a new directory to a repository. In an update - locally adds a directory that was added in the repository. In a status - informs about a new directory scheduled for addition.

  If `copyFromPath` is not null then it says that `path` is copied from `copyFromPath` located in `copyFromRevision`.

  Parameters:
    `path` - a directory path relative to the root directory opened by `openRoot()`
    `copyFromPath` - an ancestor of the added directory
    `copyFromRevision` - the revision of the ancestor
  Throws:
    `SVNException`

### openDir

    public void openDir(String path,
                        long revision)
                 throws SVNException

  Opens a directory. All property changes as well as entries adding/deletion can be applied to this directory.

  Parameters:
    `path` - a directory path relative to the root directory opened by `openRoot()`
    `revision` - the revision of the directory
  Throws:
    `SVNException`

### changeDirProperty

    public void changeDirProperty(String name,
                                  SVNPropertyValue value)
                           throws SVNException

  Changes the value of a property of the currently opened/added directory.

  Parameters:
    `name` - the name of a property to be changed
    `value` - new property value
  Throws:
    `SVNException`
  Since:
    1.2.0
  See Also:
    `openDir(String, long)`

### closeDir

    public void closeDir()
                  throws SVNException

  Closes the currently opened directory fixing all changes of its properties and/or entries. Closing a directory picks up an editor to a parent directory.

  Throws:
    `SVNException`

### addFile

    public void addFile(String path,
                        String copyFromPath,
                        long copyFromRevision)
                 throws SVNException

  Adds a file.

  In a commit - adds a new file to a repository. In an update - locally adds a file that was added in the repository. In a status - informs about a new file scheduled for addition.

  If `copyFromPath` is not null then it says that `path` is copied from `copyFromPath` located in `copyFromRevision`.

  Parameters:
    `path` - a file path relative to the root directory opened by `openRoot()`
    `copyFromPath` - an ancestor of the added file
    `copyFromRevision` - the revision of the ancestor
  Throws:
    `SVNException`

### openFile

    public void openFile(String path,
                         long revision)
                  throws SVNException

  Opens a file. After it's opened, apply delta to its contents or change the file properties.

  Parameters:
    `path` - a file path relative to the root directory opened by `openRoot()`
    `revision` - the revision of the file
  Throws:
    `SVNException`

### changeFileProperty

    public void changeFileProperty(String path,
                                   String propertyName,
                                   SVNPropertyValue propertyValue)
                            throws SVNException

  Changes the value of a property of the currently opened/added file.

  Parameters:
    `path` - file path relative to the root of this editor
    `propertyName` - property name
    `propertyValue` - property value
  Throws:
    `SVNException`
  Since:
    1.2.0

### closeFile

    public void closeFile(String path,
                          String textChecksum)
                   throws SVNException

  Closes the opened file fixing all properties and/or contents changes.

  Parameters:
    `path` - a file path relative to the root directory opened by `openRoot()`
    `textChecksum` - an MD5 checksum for the modified file
  Throws:
    `SVNException` - if the calculated upon the actual changed contents checksum does not match the expected `textChecksum`

### closeEdit

    public SVNCommitInfo closeEdit()
                            throws SVNException

  Closes this editor finalizing the whole operation the editor was used for. In a commit - sends collected data to commit a transaction.

  Returns:
    a committed revision information
  Throws:
    `SVNException`

### abortEdit

    public void abortEdit()
                   throws SVNException

  Aborts the current running editor due to errors occured.

  If an exception is thrown from an editor's method, call this method to abort the editor.

  Throws:
    `SVNException`

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