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## org.apache.tools.ant.taskdefs
Class Sync

    java.lang.Object
      org.apache.tools.ant.ProjectComponent
          org.apache.tools.ant.Task
              org.apache.tools.ant.taskdefs.Sync

All Implemented Interfaces:
  java.lang.Cloneable

    public class Sync

extends Task

Synchronize a local target directory from the files defined in one or more filesets.

Uses a <copy> task internally, but forbidding the use of mappers and filter chains. Files of the destination directory not present in any of the source fileset are removed.

Since:
  Ant 1.6 revised by Dan Armbrust to remove orphaned directories.

Nested Class Summary
`static class` | `Sync.MyCopy` Subclass Copy in order to access it's file/dir maps.
`static class` | `Sync.SyncTarget` Inner class used to hold exclude patterns and selectors to save stuff that happens to live in the target directory but should not get removed.

Field Summary

Fields inherited from class org.apache.tools.ant.Task
`target, taskName, taskType, wrapper`

Fields inherited from class org.apache.tools.ant.ProjectComponent
`description, location, project`

Constructor Summary
`Sync()`

Method Summary
`void` | `add(ResourceCollection rc)` Adds a collection of filesystem resources to copy.
`void` | `addFileset(FileSet set)` Adds a set of files to copy.
`void` | `addPreserveInTarget(Sync.SyncTarget s)` A container for patterns and selectors that can be used to specify files that should be kept in the target even if they are not present in any source directory.
`void` | `execute()` Execute the sync task.
`void` | `init()` Initialize the sync task.
`void` | `setFailOnError(boolean failonerror)` If false, note errors to the output but keep going.
`void` | `setGranularity(long granularity)` The number of milliseconds leeway to give before deciding a target is out of date.
`void` | `setIncludeEmptyDirs(boolean includeEmpty)` Used to copy empty directories.
`void` | `setOverwrite(boolean overwrite)` Overwrite any existing destination file(s).
`void` | `setTodir(java.io.File destDir)` Sets the destination directory.
`void` | `setVerbose(boolean verbose)` Used to force listing of all names of copied files.

Methods inherited from class org.apache.tools.ant.Task
`bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType`

Methods inherited from class org.apache.tools.ant.ProjectComponent
`clone, getDescription, getLocation, getProject, setDescription, setLocation, setProject`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Sync

    public Sync()

Method Detail

### init

    public void init()
              throws BuildException

  Initialize the sync task.

  Overrides:
    `init` in class `Task`
  Throws:
    `BuildException` - if there is a problem.
  See Also:
    `Task.init()`

### execute

    public void execute()
                 throws BuildException

  Execute the sync task.

  Overrides:
    `execute` in class `Task`
  Throws:
    `BuildException` - if there is an error.
  See Also:
    `Task.execute()`

### setTodir

    public void setTodir(java.io.File destDir)

  Sets the destination directory.

  Parameters:
    `destDir` - the destination directory

### setVerbose

    public void setVerbose(boolean verbose)

  Used to force listing of all names of copied files.

  Parameters:
    `verbose` - if true force listing of all names of copied files.

### setOverwrite

    public void setOverwrite(boolean overwrite)

  Overwrite any existing destination file(s).

  Parameters:
    `overwrite` - if true overwrite any existing destination file(s).

### setIncludeEmptyDirs

    public void setIncludeEmptyDirs(boolean includeEmpty)

  Used to copy empty directories.

  Parameters:
    `includeEmpty` - If true copy empty directories.

### setFailOnError

    public void setFailOnError(boolean failonerror)

  If false, note errors to the output but keep going.

  Parameters:
    `failonerror` - true or false

### addFileset

    public void addFileset(FileSet set)

  Adds a set of files to copy.

  Parameters:
    `set` - a fileset

### add

    public void add(ResourceCollection rc)

  Adds a collection of filesystem resources to copy.

  Parameters:
    `rc` - a resource collection
  Since:
    Ant 1.7

### setGranularity

    public void setGranularity(long granularity)

  The number of milliseconds leeway to give before deciding a target is out of date.

  Default is 0 milliseconds, or 2 seconds on DOS systems.

  Parameters:
    `granularity` - a `long` value
  Since:
    Ant 1.6.2

### addPreserveInTarget

    public void addPreserveInTarget(Sync.SyncTarget s)

  A container for patterns and selectors that can be used to specify files that should be kept in the target even if they are not present in any source directory.

  You must not invoke this method more than once.

  Parameters:
    `s` - a preserveintarget nested element
  Since:
    Ant 1.7

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