BaseSelectorContainer (Apache Ant API)

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## org.apache.tools.ant.types.selectors
Class BaseSelectorContainer

    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.BaseSelectorContainer

All Implemented Interfaces:
  java.lang.Cloneable, FileSelector, SelectorContainer

Direct Known Subclasses:
  AndSelector, MajoritySelector, NoneSelector, OrSelector, SelectSelector

    public abstract class BaseSelectorContainer

extends BaseSelector
implements SelectorContainer

This is the base class for selectors that can contain other selectors.

Since:
  1.5

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
`BaseSelectorContainer()` Default constructor.

Method Summary
`void` | `add(FileSelector selector)` add an arbitary selector
`void` | `addAnd(AndSelector selector)` add an "And" selector entry on the selector list
`void` | `addContains(ContainsSelector selector)` add a contains selector entry on the selector list
`void` | `addContainsRegexp(ContainsRegexpSelector selector)` add a regular expression selector entry on the selector list
`void` | `addCustom(ExtendSelector selector)` add an extended selector entry on the selector list
`void` | `addDate(DateSelector selector)` add a selector date entry on the selector list
`void` | `addDepend(DependSelector selector)` add a depends selector entry on the selector list
`void` | `addDepth(DepthSelector selector)` add a depth selector entry on the selector list
`void` | `addDifferent(DifferentSelector selector)` adds a different selector to the selector list
`void` | `addFilename(FilenameSelector selector)` add a selector filename entry on the selector list
`void` | `addMajority(MajoritySelector selector)` add a majority selector entry on the selector list
`void` | `addModified(ModifiedSelector selector)` add the modified selector
`void` | `addNone(NoneSelector selector)` add a "None" selector entry on the selector list
`void` | `addNot(NotSelector selector)` add a "Not" selector entry on the selector list
`void` | `addOr(OrSelector selector)` add an "Or" selector entry on the selector list
`void` | `addPresent(PresentSelector selector)` add a present selector entry on the selector list
`void` | `addReadable(ReadableSelector r)`
`void` | `addSelector(SelectSelector selector)` add a "Select" selector entry on the selector list
`void` | `addSize(SizeSelector selector)` add a selector size entry on the selector list
`void` | `addType(TypeSelector selector)` adds a type selector to the selector list
`void` | `addWritable(WritableSelector w)`
`void` | `appendSelector(FileSelector selector)` Add a new selector into this container.
`protected void` | `dieOnCircularReference(java.util.Stack stk, Project p)` Check to see whether any DataType we hold references to is included in the Stack (which holds all DataType instances that directly or indirectly reference this instance, including this instance itself).
`FileSelector[]` | `getSelectors(Project p)` Returns the set of selectors as an array.
`boolean` | `hasSelectors()` Indicates whether there are any selectors here.
`abstract boolean` | `isSelected(java.io.File basedir, java.lang.String filename, java.io.File file)` Method that each selector will implement to create their selection behaviour.
`int` | `selectorCount()` Gives the count of the number of selectors in this container
`java.util.Enumeration` | `selectorElements()` Returns an enumerator for accessing the set of selectors.
`java.lang.String` | `toString()` Convert the Selectors within this container to a string.
`void` | `validate()` This implementation validates the container by calling verifySettings() and then validates each contained selector provided that the selector implements the validate interface.

Methods inherited from class org.apache.tools.ant.types.selectors.BaseSelector
`getError, setError, verifySettings`

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

### BaseSelectorContainer

    public BaseSelectorContainer()

  Default constructor.

Method Detail

### hasSelectors

    public boolean hasSelectors()

  Indicates whether there are any selectors here.

  Specified by:
    `hasSelectors` in interface `SelectorContainer`
  Returns:
    true if there are selectors

### selectorCount

    public int selectorCount()

  Gives the count of the number of selectors in this container

  Specified by:
    `selectorCount` in interface `SelectorContainer`
  Returns:
    the number of selectors

### getSelectors

    public FileSelector[] getSelectors(Project p)

  Returns the set of selectors as an array.

  Specified by:
    `getSelectors` in interface `SelectorContainer`
  Parameters:
    `p` - the current project
  Returns:
    an array of selectors

### selectorElements

    public java.util.Enumeration selectorElements()

  Returns an enumerator for accessing the set of selectors.

  Specified by:
    `selectorElements` in interface `SelectorContainer`
  Returns:
    an enumerator for the selectors

### toString

    public java.lang.String toString()

  Convert the Selectors within this container to a string. This will just be a helper class for the subclasses that put their own name around the contents listed here.

  Overrides:
    `toString` in class `DataType`
  Returns:
    comma separated list of Selectors contained in this one

### appendSelector

    public void appendSelector(FileSelector selector)

  Add a new selector into this container.

  Specified by:
    `appendSelector` in interface `SelectorContainer`
  Parameters:
    `selector` - the new selector to add

### validate

    public void validate()

  This implementation validates the container by calling verifySettings() and then validates each contained selector provided that the selector implements the validate interface.

  Ordinarily, this will validate all the elements of a selector container even if the isSelected() method of some elements is never called. This has two effects:

  - Validation will often occur twice.
  - Since it is not required that selectors derive from BaseSelector, there could be selectors in the container whose error conditions are not detected if their isSelected() call is never made.

  Overrides:
    `validate` in class `BaseSelector`

### isSelected

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

  Method that each selector will implement to create their selection behaviour. This is what makes SelectorContainer abstract.

  Specified by:
    `isSelected` in interface `FileSelector`
  Specified by:
    `isSelected` in class `BaseSelector`
  Parameters:
    `basedir` - the base directory the scan is being done from
    `filename` - the name of the file to check
    `file` - a java.io.File object for the filename that the selector can use
  Returns:
    whether the file should be selected or not

### addSelector

    public void addSelector(SelectSelector selector)

  add a "Select" selector entry on the selector list

  Specified by:
    `addSelector` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addAnd

    public void addAnd(AndSelector selector)

  add an "And" selector entry on the selector list

  Specified by:
    `addAnd` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addOr

    public void addOr(OrSelector selector)

  add an "Or" selector entry on the selector list

  Specified by:
    `addOr` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addNot

    public void addNot(NotSelector selector)

  add a "Not" selector entry on the selector list

  Specified by:
    `addNot` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addNone

    public void addNone(NoneSelector selector)

  add a "None" selector entry on the selector list

  Specified by:
    `addNone` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addMajority

    public void addMajority(MajoritySelector selector)

  add a majority selector entry on the selector list

  Specified by:
    `addMajority` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addDate

    public void addDate(DateSelector selector)

  add a selector date entry on the selector list

  Specified by:
    `addDate` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addSize

    public void addSize(SizeSelector selector)

  add a selector size entry on the selector list

  Specified by:
    `addSize` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addFilename

    public void addFilename(FilenameSelector selector)

  add a selector filename entry on the selector list

  Specified by:
    `addFilename` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addCustom

    public void addCustom(ExtendSelector selector)

  add an extended selector entry on the selector list

  Specified by:
    `addCustom` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addContains

    public void addContains(ContainsSelector selector)

  add a contains selector entry on the selector list

  Specified by:
    `addContains` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addPresent

    public void addPresent(PresentSelector selector)

  add a present selector entry on the selector list

  Specified by:
    `addPresent` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addDepth

    public void addDepth(DepthSelector selector)

  add a depth selector entry on the selector list

  Specified by:
    `addDepth` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addDepend

    public void addDepend(DependSelector selector)

  add a depends selector entry on the selector list

  Specified by:
    `addDepend` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addDifferent

    public void addDifferent(DifferentSelector selector)

  adds a different selector to the selector list

  Specified by:
    `addDifferent` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addType

    public void addType(TypeSelector selector)

  adds a type selector to the selector list

  Specified by:
    `addType` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addContainsRegexp

    public void addContainsRegexp(ContainsRegexpSelector selector)

  add a regular expression selector entry on the selector list

  Specified by:
    `addContainsRegexp` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add

### addModified

    public void addModified(ModifiedSelector selector)

  add the modified selector

  Specified by:
    `addModified` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add
  Since:
    ant 1.6

### addReadable

    public void addReadable(ReadableSelector r)

### addWritable

    public void addWritable(WritableSelector w)

### add

    public void add(FileSelector selector)

  add an arbitary selector

  Specified by:
    `add` in interface `SelectorContainer`
  Parameters:
    `selector` - the selector to add
  Since:
    Ant 1.6

### dieOnCircularReference

    protected void dieOnCircularReference(java.util.Stack stk,
                                          Project p)
                                   throws BuildException

  Description copied from class: `DataType`
  Check to see whether any DataType we hold references to is included in the Stack (which holds all DataType instances that directly or indirectly reference this instance, including this instance itself).

  If one is included, throw a BuildException created by `circularReference`.

  This implementation is appropriate only for a DataType that cannot hold other DataTypes as children.

  The general contract of this method is that it shouldn't do anything if ``checked`` is true and set it to true on exit.

  Overrides:
    `dieOnCircularReference` in class `DataType`
  Parameters:
    `stk` - the stack of references to check.
    `p` - the project to use to dereference the references.
  Throws:
    `BuildException` - on error.

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