Package org.apache.tools.ant.types.selectors

# Class BaseExtendSelector

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

All Implemented Interfaces:
  `Cloneable`, `Parameterizable`, `ResourceSelector`, `ExtendFileSelector`, `FileSelector`

Direct Known Subclasses:
  `ContainsRegexpSelector`, `ContainsSelector`, `DateSelector`, `DepthSelector`, `FilenameSelector`, `ModifiedSelector`, `SizeSelector`, `TypeSelector`

public abstract class BaseExtendSelector extends BaseSelector implements ExtendFileSelector
Convenience base class for all selectors accessed through ExtendSelector. It provides support for gathering the parameters together as well as for assigning an error message and throwing a build exception if an error is detected.

Since:
  1.5

## Field Summary

Fields
Modifier and Type
Field
Description
`protected Parameter[]`
`parameters`
The passed in parameter array.

### 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
`BaseExtendSelector()`

## Method Summary

Modifier and Type
Method
Description
`protected Parameter[]`
`getParameters()`
Allows access to the parameters gathered and set within the <custom> tag.
`abstract boolean`
`isSelected(File basedir, String filename, File file)`
Method that each selector will implement to create their selection behaviour.
`void`
`setParameters(Parameter... parameters)`
Set all the Parameters for this custom selector, collected by the ExtendSelector class.

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

`getError, setError, setError, validate, verifySettings`

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

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

### 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 org.apache.tools.ant.types.selectors.FileSelector

`isSelected`

## Field Details

### parameters

protected Parameter[] parameters
The passed in parameter array.

## Constructor Details

### BaseExtendSelector

public BaseExtendSelector()

## Method Details

### setParameters

public void setParameters(Parameter... parameters)
Set all the Parameters for this custom selector, collected by the ExtendSelector class.

Specified by:
  `setParameters` in interface `Parameterizable`
Parameters:
  `parameters` - the complete set of parameters for this selector

### getParameters

protected Parameter[] getParameters()
Allows access to the parameters gathered and set within the <custom> tag.

Returns:
  the set of parameters defined for this selector

### isSelected

public abstract boolean isSelected(File basedir, String filename, File file) throws BuildException
Method that each selector will implement to create their selection behaviour. If there is a problem with the setup of a selector, it can throw a BuildException to indicate the problem.

Specified by:
  `isSelected` in interface `FileSelector`
Specified by:
  `isSelected` in class `BaseSelector`
Parameters:
  `basedir` - A java.io.File object for the base directory
  `filename` - The name of the file to check
  `file` - A File object for this filename
Returns:
  whether the file should be selected or not
Throws:
  `BuildException` - if an error occurs