org.apache.tools.ant.types.resources
Class LazyResourceCollectionWrapper

java.lang.Object
  org.apache.tools.ant.ProjectComponent
      org.apache.tools.ant.types.DataType
          org.apache.tools.ant.types.resources.AbstractResourceCollectionWrapper
              org.apache.tools.ant.types.resources.LazyResourceCollectionWrapper

All Implemented Interfaces:

java.lang.Cloneable, java.lang.Iterable<Resource>, ResourceCollection

public class LazyResourceCollectionWrapper
extends AbstractResourceCollectionWrapper

Resource collection which load underlying resource collection only on demand with support for caching

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

LazyResourceCollectionWrapper()

Method Summary

protected java.util.Iterator<Resource>	createIterator() Do create an iterator on the resource collection.
protected boolean	filterResource(Resource r) Specify if the resource should be filtered or not.
protected int	getSize() Do compute the size of the resource collection.

Methods inherited from class org.apache.tools.ant.types.resources.AbstractResourceCollectionWrapper

add, dieOnCircularReference, getResourceCollection, isCache, isFilesystemOnly, iterator, setCache, size, toString

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

checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, dieOnCircularReference, dieOnCircularReference, 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

Constructor Detail

LazyResourceCollectionWrapper

public LazyResourceCollectionWrapper()

Method Detail

createIterator

protected java.util.Iterator<Resource> createIterator()

Description copied from class: AbstractResourceCollectionWrapper

Do create an iterator on the resource collection. The creation of the iterator is allowed to not be thread safe whereas the iterator itself should. The returned iterator will be wrapped into the FailFast one.

Specified by:

createIterator in class AbstractResourceCollectionWrapper

Returns:

the iterator on the resource collection

getSize

protected int getSize()

Description copied from class: AbstractResourceCollectionWrapper

Do compute the size of the resource collection. The implementation of this function is allowed to be not thread safe.

Specified by:

getSize in class AbstractResourceCollectionWrapper

Returns:

size of resource collection.

filterResource

protected boolean filterResource(Resource r)

Specify if the resource should be filtered or not. This function should be overrided in order to define the filtering algorithm

Parameters:

r - resource considered for filtration

Returns:

whether the resource should be filtered or not