Package org.apache.tools.ant.types.resources

# Class Restrict

java.lang.Object
org.apache.tools.ant.ProjectComponent
org.apache.tools.ant.types.DataType
org.apache.tools.ant.types.resources.selectors.ResourceSelectorContainer
org.apache.tools.ant.types.resources.Restrict

All Implemented Interfaces:
  `Cloneable`, `Iterable<Resource>`, `ResourceCollection`

public class Restrict extends ResourceSelectorContainer implements ResourceCollection
ResourceCollection that allows a number of selectors to be applied to a single ResourceCollection for the purposes of restricting or narrowing results.

Since:
  Ant 1.7

- ## 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

  Constructors
  Constructor
  Description
  `Restrict()`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `add(ResourceCollection c)`
  Add the ResourceCollection.
  `void`
  `add(ResourceSelector s)`
  Add a ResourceSelector.
  `protected void`
  `dieOnCircularReference(Stack<Object> stk, Project p)`
  Overrides the version from DataType to recurse on nested ResourceSelectors.
  `boolean`
  `isCache()`
  Learn whether to cache collections.
  `boolean`
  `isFilesystemOnly()`
  Fulfill the ResourceCollection contract.
  `final Iterator<Resource>`
  `iterator()`
  Fulfill the ResourceCollection contract.
  `void`
  `setCache(boolean b)`
  Set whether to cache collections.
  `int`
  `size()`
  Fulfill the ResourceCollection contract.
  `String`
  `toString()`
  Format this Restrict collection as a String.

  ### Methods inherited from class org.apache.tools.ant.types.resources.selectors.ResourceSelectorContainer

  `getResourceSelectors, getSelectors, hasSelectors, selectorCount`

  ### Methods inherited from class org.apache.tools.ant.types.DataType

  `checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, setRefid, 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`

  ### Methods inherited from interface java.lang.Iterable

  `forEach, spliterator`

  ### Methods inherited from interface org.apache.tools.ant.types.ResourceCollection

  `isEmpty, stream`

- ## Constructor Details

  - ### Restrict

    public Restrict()

- ## Method Details

  - ### add

    public void add(ResourceCollection c)
    Add the ResourceCollection.
    Parameters:
      `c` - the ResourceCollection to add.

  - ### setCache

    public void setCache(boolean b)
    Set whether to cache collections.
    Parameters:
      `b` - boolean cache flag.

  - ### isCache

    public boolean isCache()
    Learn whether to cache collections. Default is `true`.
    Returns:
      boolean cache flag.

  - ### add

    public void add(ResourceSelector s)
    Add a ResourceSelector.
    Overrides:
      `add` in class `ResourceSelectorContainer`
    Parameters:
      `s` - the ResourceSelector to add.

  - ### iterator

    public final Iterator<Resource> iterator()
    Fulfill the ResourceCollection contract.
    Specified by:
      `iterator` in interface `Iterable<Resource>`
    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()
    Fulfill the ResourceCollection contract.
    Specified by:
      `isFilesystemOnly` in interface `ResourceCollection`
    Returns:
      whether this is a filesystem-only resource collection.

  - ### toString

    public String toString()
    Format this Restrict collection as a String.
    Overrides:
      `toString` in class `DataType`
    Returns:
      the String value of this collection.

  - ### dieOnCircularReference

    protected void dieOnCircularReference(Stack<Object> stk, Project p)
    Description copied from class: `ResourceSelectorContainer`
    Overrides the version from DataType to recurse on nested ResourceSelectors.
    Overrides:
      `dieOnCircularReference` in class `ResourceSelectorContainer`
    Parameters:
      `stk` - the Stack of references.
      `p` - the Project to resolve against.