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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.PresentSelector
Selector that filters files based on whether they appear in another directory tree. It can contain a mapper element, so isn't available as an ExtendSelector (since those parameters can't hold other elements).
Nested Class Summary | |
static class |
PresentSelector.FilePresence
Enumerated attribute with the values for indicating where a file's presence is allowed and required. |
Field Summary |
Fields inherited from class org.apache.tools.ant.types.DataType |
checked, description, ref |
Fields inherited from class org.apache.tools.ant.ProjectComponent |
project |
Constructor Summary | |
PresentSelector()
Creates a new PresentSelector instance. |
Method Summary | |
Mapper |
createMapper()
Defines the FileNameMapper to use (nested mapper element). |
boolean |
isSelected(java.io.File basedir,
java.lang.String filename,
java.io.File file)
The heart of the matter. |
void |
setPresent(PresentSelector.FilePresence fp)
This sets whether to select a file if its dest file is present. |
void |
setTargetdir(java.io.File targetdir)
The name of the file or directory which is checked for matching files. |
java.lang.String |
toString()
|
void |
verifySettings()
Checks to make sure all settings are kosher. |
Methods inherited from class org.apache.tools.ant.types.selectors.BaseSelector |
getError, setError, validate |
Methods inherited from class org.apache.tools.ant.types.DataType |
checkAttributesAllowed, checkChildrenAllowed, circularReference, dieOnCircularReference, getCheckedRef, getDescription, getRefid, isChecked, isReference, noChildrenAllowed, setChecked, setDescription, setRefid, tooManyAttributes |
Methods inherited from class org.apache.tools.ant.ProjectComponent |
getProject, log, log, setProject |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public PresentSelector()
PresentSelector
instance.
Method Detail |
public java.lang.String toString()
toString
in class java.lang.Object
public void setTargetdir(java.io.File targetdir)
targetdir
- the directory to scan looking for matching files.public Mapper createMapper() throws BuildException
BuildException
- if more that one mapper definedpublic void setPresent(PresentSelector.FilePresence fp)
negate
boolean, but by doing things
this way, we get some documentation on how the system works.
A user looking at the documentation should clearly understand
that the ONLY files whose presence is being tested are those
that already exist in the source directory, hence the lack of
a destonly
option.
fp
- An attribute set to either srconly
both.public void verifySettings()
verifySettings
in class BaseSelector
public boolean isSelected(java.io.File basedir, java.lang.String filename, java.io.File file)
isSelected
in interface FileSelector
isSelected
in class BaseSelector
basedir
- the base directory the scan is being done fromfilename
- is the name of the file to checkfile
- is a java.io.File object the selector can use
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