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## org.tmatesoft.svn.core.wc
Interface ISVNEventHandler

All Superinterfaces:
  ISVNCanceller

All Known Subinterfaces:
  ISVNAdminEventHandler

All Known Implementing Classes:
  SVNAdminEventAdapter, SVNBasicClient, SVNEventAdapter, SVNRepositoryReplicator

public interface ISVNEventHandler
extends ISVNCanceller

The ISVNEventHandler interface should be implemented in order to be further provided to an SVN*Client object as a handler of a sequence of events generated by SVN*Client's do*() methods.

This is a way how a custom event handler can be registered:

     import org.tmatesoft.svn.core.wc.ISVNOptions;
     import org.tmatesoft.svn.core.wc.SVNWCUtil;
     import org.tmatesoft.svn.core.wc.SVNClientManager;
     import org.tmatesoft.svn.core.wc.ISVNEventHandler;
     ...

     ISVNOptions options = SVNWCUtil.createDefaultOptions(true);
     String authName = "myName";
     String authPassword = "myPassword";
     SVNClientManager clientManager = SVNClientManager.newInstance(options, authName, authPassword);
     clientManager.getCommitClient().setEventHandler(new ISVNEventHandler(){
         public void handleEvent(SVNEvent event, double progress){
             //handle event here
         }

         public void checkCancelled() throws SVNCancelException {
             //handle cancel of the operation - throw SVNCancelException
         }
     });

or like this:

     ...
     import org.tmatesoft.svn.core.wc.SVNCommitClient;
     ...

     ISVNOptions options = SVNWCUtil.createDefaultOptions(true);
     SVNCommitClient commitClient = new SVNCommitClient(null, options);
     commitClient.setEventHandler(new ISVNEventHandler(){
     ...
     });

All calls to handleEvent() and checkCancelled() methods are synchronous - that is the caller is blocked till a method finishes.

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

Field Summary
`static double` `UNKNOWN` Constant that is currently the value of the `progress` parameter (in `handleEvnt()`)

Fields inherited from interface org.tmatesoft.svn.core.ISVNCanceller
`NULL`

Method Summary
`void` `handleEvent(SVNEvent event, double progress)` Handles the current event.

Methods inherited from interface org.tmatesoft.svn.core.ISVNCanceller
`checkCancelled`

Field Detail

### UNKNOWN

    public static final double UNKNOWN

  Constant that is currently the value of the `progress` parameter (in `handleEvnt()`)

  See Also:
    Constant Field Values

Method Detail

### handleEvent

    public void handleEvent(SVNEvent event,
                            double progress)
                     throws SVNException

  Handles the current event.

  Generally all operations represented by do*() methods of SVN*Client objects are followed by generating a sequence of events that are passed to the registered ISVNEventHandler object for custom processing. For example, during an update operation each local item being modified is signaled about by dispatching a specific for this item SVNEvent object to this method where this event can be scrutinized and handled in a desired way.

  Parameters:
    `event` - the current event that keeps detailed information on the type of action occured and other attributes like path, status, etc.
    `progress` - currently reserved for future use; now it's value is always set to `UNKNOWN`
  Throws:
    `SVNException`

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