Package org.springframework.integration.file.filters

Class ChainFileListFilter<F>

java.lang.Object

org.springframework.integration.file.filters.CompositeFileListFilter<F>

org.springframework.integration.file.filters.ChainFileListFilter<F>

Type Parameters:

F - The type that will be filtered.

All Implemented Interfaces:

Closeable, AutoCloseable, DiscardAwareFileListFilter<F>, FileListFilter<F>, ResettableFileListFilter<F>, ReversibleFileListFilter<F>

public class ChainFileListFilter<F>
extends CompositeFileListFilter<F>

The CompositeFileListFilter extension which chains the result of the previous filter to the next one. If a filter in the chain returns an empty list, the remaining filters are not invoked.

Since:

4.3.7

Author:

Artem Bilan, Gary Russell, Cengis Kocaurlu

Field Summary

Fields inherited from class org.springframework.integration.file.filters.CompositeFileListFilter

fileFilters

Constructor Summary

Constructors

Constructor	Description
ChainFileListFilter()
ChainFileListFilter(Collection<? extends FileListFilter<F>> fileFilters)

Method Summary

Modifier and Type	Method	Description
boolean	accept(F file)	Filter a single file; only called externally if FileListFilter.supportsSingleFileFiltering() returns true.
List<F>	filterFiles(F[] files)	Filters out files and returns the files that are left in a list, or an empty list when a null is passed in.

Methods inherited from class org.springframework.integration.file.filters.CompositeFileListFilter

addDiscardCallback, addFilter, addFilters, addFilters, close, isForRecursion, remove, rollback, supportsSingleFileFiltering

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ChainFileListFilter

public ChainFileListFilter()

ChainFileListFilter

public ChainFileListFilter(Collection<? extends FileListFilter<F>> fileFilters)

Method Details

filterFiles

public List<F> filterFiles(F[] files)

Description copied from interface: FileListFilter

Filters out files and returns the files that are left in a list, or an empty list when a null is passed in.

Specified by:

filterFiles in interface FileListFilter<F>

Overrides:

filterFiles in class CompositeFileListFilter<F>

Parameters:

files - The files.

Returns:

The filtered files.

accept

public boolean accept(F file)

Description copied from interface: FileListFilter

Filter a single file; only called externally if FileListFilter.supportsSingleFileFiltering() returns true.

Specified by:

accept in interface FileListFilter<F>

Overrides:

accept in class CompositeFileListFilter<F>

Parameters:

file - the file.

Returns:

true if the file passes the filter, false to filter.

See Also:

FileListFilter.supportsSingleFileFiltering()