## org.apache.tools.ant.types.resources
Class MultiRootFileSet

    java.lang.Object
      org.apache.tools.ant.ProjectComponent
          org.apache.tools.ant.types.DataType
              org.apache.tools.ant.types.AbstractFileSet
                  org.apache.tools.ant.types.resources.MultiRootFileSet

All Implemented Interfaces:
  java.lang.Cloneable, java.lang.Iterable<Resource>, ResourceCollection, SelectorContainer

    public class MultiRootFileSet

extends AbstractFileSet
implements ResourceCollection

Union of file/dirsets that share the same patterns and selectors but have different roots.

Since:
  Ant 1.9.4

Nested Class Summary
`static class` `MultiRootFileSet.SetType` What to return from the set: files, directories or both.

Field Summary

Fields inherited from class org.apache.tools.ant.types.DataType
`checked, ref`

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

Constructor Summary
`MultiRootFileSet()`

Method Summary
`void` `addConfiguredBaseDir(FileResource r)` Adds a basedir as nested element.
`java.lang.Object` `clone()` Return a MultiRootFileSet that has the same basedirs and same patternsets as this one.
`boolean` `isFilesystemOnly()` Always returns true.
`java.util.Iterator<Resource>` `iterator()` Fulfill the ResourceCollection contract.
`void` `setBaseDirs(java.lang.String dirs)` Adds basedirs as a comman separated list.
`void` `setCache(boolean b)` Set whether to cache collections.
`void` `setDir(java.io.File dir)` Sets the base-directory for this instance.
`void` `setRefid(Reference r)` Makes this instance in effect a reference to another instance.
`void` `setType(MultiRootFileSet.SetType type)` Determines the types of resources to return.
`int` `size()` Fulfill the ResourceCollection contract.
`java.lang.String` `toString()` Returns included directories as a list of semicolon-separated paths.

Methods inherited from class org.apache.tools.ant.types.AbstractFileSet

`add, addAnd, addContains, addContainsRegexp, addCustom, addDate, addDepend, addDepth, addDifferent, addFilename, addMajority, addModified, addNone, addNot, addOr, addPresent, addReadable, addSelector, addSize, addType, addWritable, appendExcludes, appendIncludes, appendSelector, createExclude, createExcludesFile, createInclude, createIncludesFile, createPatternSet, dieOnCircularReference, getDefaultexcludes, getDir, getDir, getDirectoryScanner, getDirectoryScanner, getErrorOnMissingDir, getMaxLevelsOfSymlinks, getRef, getSelectors, hasPatterns, hasSelectors, isCaseSensitive, isFollowSymlinks, mergeExcludes, mergeIncludes, mergePatterns, selectorCount, selectorElements, setCaseSensitive, setDefaultexcludes, setErrorOnMissingDir, setExcludes, setExcludesfile, setFile, setFollowSymlinks, setIncludes, setIncludesfile, setMaxLevelsOfSymlinks, setupDirectoryScanner, setupDirectoryScanner`

Methods inherited from class org.apache.tools.ant.types.DataType
`checkAttributesAllowed, checkChildrenAllowed, circularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, tooManyAttributes`

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

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

Constructor Detail

### MultiRootFileSet

    public MultiRootFileSet()

Method Detail

### setDir

    public void setDir(java.io.File dir)

  Description copied from class: `AbstractFileSet`
  Sets the base-directory for this instance.

  Overrides:
    `setDir` in class `AbstractFileSet`
  Parameters:
    `dir` - the directory's `File` instance.

### setType

    public void setType(MultiRootFileSet.SetType type)

  Determines the types of resources to return.

  Parameters:
    `type` - the types of resources to return

### setCache

    public void setCache(boolean b)

  Set whether to cache collections.

  Parameters:
    `b` - boolean cache flag.

### setBaseDirs

    public void setBaseDirs(java.lang.String dirs)

  Adds basedirs as a comman separated list.

  Parameters:
    `b` - boolean cache flag.

### addConfiguredBaseDir

    public void addConfiguredBaseDir(FileResource r)

  Adds a basedir as nested element.

### setRefid

    public void setRefid(Reference r)

  Description copied from class: `AbstractFileSet`
  Makes this instance in effect a reference to another instance.

  You must not set another attribute or nest elements inside this element if you make it a reference.

  Overrides:
    `setRefid` in class `AbstractFileSet`
  Parameters:
    `r` - the `Reference` to use.

### clone

    public java.lang.Object clone()

  Return a MultiRootFileSet that has the same basedirs and same patternsets as this one.

  Overrides:
    `clone` in class `AbstractFileSet`
  Returns:
    the cloned MultiRootFileSet.

### iterator

    public java.util.Iterator<Resource> iterator()

  Fulfill the ResourceCollection contract.

  Specified by:
    `iterator` in interface `java.lang.Iterable<Resource>`
  Specified by:
    `iterator` in interface `ResourceCollection`
  Returns:
    an Iterator of Resources.

### size

    public int size()

  Fulfill the ResourceCollection contract.

  Specified by:
    `size` in interface `ResourceCollection`
  Returns:
    number of elements as int.

### isFilesystemOnly

    public boolean isFilesystemOnly()

  Always returns true.

  Specified by:
    `isFilesystemOnly` in interface `ResourceCollection`
  Returns:
    true indicating that all elements will be FileResources.

### toString

    public java.lang.String toString()

  Returns included directories as a list of semicolon-separated paths.

  Overrides:
    `toString` in class `AbstractFileSet`
  Returns:
    a `String` of included directories.