org.apache.tools.ant.types.selectors

Class DepthSelector

java.lang.Object

org.apache.tools.ant.ProjectComponent

org.apache.tools.ant.types.DataType

org.apache.tools.ant.types.selectors.BaseSelector

org.apache.tools.ant.types.selectors.BaseExtendSelector

org.apache.tools.ant.types.selectors.DepthSelector

All Implemented Interfaces:

java.lang.Cloneable, Parameterizable, ExtendFileSelector, FileSelector

public class DepthSelector
extends BaseExtendSelector

Selector that filters files based on the how deep in the directory tree they are.

Since:

1.5

Field Summary

Fields

Modifier and Type	Field and Description
int	max max attribute
static java.lang.String	MAX_KEY Used for parameterized custom selector
int	min min attribute
static java.lang.String	MIN_KEY Used for parameterized custom selector

Fields inherited from class org.apache.tools.ant.types.selectors.BaseExtendSelector

parameters

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 and Description
DepthSelector() Creates a new DepthSelector instance.

Method Summary

Modifier and Type	Method and Description
boolean	isSelected(java.io.File basedir, java.lang.String filename, java.io.File file) The heart of the matter.
void	setMax(int max) The minimum depth below the basedir before a file is selected.
void	setMin(int min) The minimum depth below the basedir before a file is selected.
void	setParameters(Parameter[] parameters) When using this as a custom selector, this method will be called.
java.lang.String	toString() Basic DataType toString().
void	verifySettings() Checks to make sure all settings are kosher.

Methods inherited from class org.apache.tools.ant.types.selectors.BaseExtendSelector

getParameters

Methods inherited from class org.apache.tools.ant.types.selectors.BaseSelector

getError, setError, setError, validate

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

checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, dieOnCircularReference, 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

Field Detail

min

public int min

min attribute

max

public int max

max attribute

MIN_KEY

public static final java.lang.String MIN_KEY

Used for parameterized custom selector

See Also:

Constant Field Values

MAX_KEY

public static final java.lang.String MAX_KEY

Used for parameterized custom selector

See Also:

Constant Field Values

Constructor Detail

DepthSelector

public DepthSelector()

Creates a new DepthSelector instance.

Method Detail

toString

public java.lang.String toString()

Description copied from class: DataType

Basic DataType toString().

Overrides:

toString in class DataType

Returns:

a string describing this object

setMin

public void setMin(int min)

The minimum depth below the basedir before a file is selected.

Parameters:

min - minimum directory levels below basedir to go

setMax

public void setMax(int max)

The minimum depth below the basedir before a file is selected.

Parameters:

max - maximum directory levels below basedir to go

setParameters

public void setParameters(Parameter[] parameters)

When using this as a custom selector, this method will be called. It translates each parameter into the appropriate setXXX() call.

Specified by:

setParameters in interface Parameterizable

Overrides:

setParameters in class BaseExtendSelector

Parameters:

parameters - the complete set of parameters for this selector

verifySettings

public void verifySettings()

Checks to make sure all settings are kosher. In this case, it means that the max depth is not lower than the min depth.

Overrides:

verifySettings in class BaseSelector

isSelected

public boolean isSelected(java.io.File basedir,
                          java.lang.String filename,
                          java.io.File file)

The heart of the matter. This is where the selector gets to decide on the inclusion of a file in a particular fileset. Most of the work for this selector is offloaded into SelectorUtils, a static class that provides the same services for both FilenameSelector and DirectoryScanner.

Specified by:

isSelected in interface FileSelector

Specified by:

isSelected in class BaseExtendSelector

Parameters:

basedir - the base directory the scan is being done from

filename - is the name of the file to check

file - is a java.io.File object the selector can use

Returns:

whether the file should be selected or not