FilterSet (Apache Ant API)
Date: 2008-06-27

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## org.apache.tools.ant.types
Class FilterSet

    java.lang.Object
      org.apache.tools.ant.ProjectComponent
          org.apache.tools.ant.types.DataType
              org.apache.tools.ant.types.FilterSet

All Implemented Interfaces:
  java.lang.Cloneable

    public class FilterSet

extends DataType
implements java.lang.Cloneable

A set of filters to be applied to something. A filter set may have begintoken and endtokens defined.

Nested Class Summary
`static class` | `FilterSet.Filter` Individual filter component of filterset.
`class` | `FilterSet.FiltersFile` The filtersfile nested element.
`static class` | `FilterSet.OnMissing` EnumeratedAttribute to set behavior WRT missing filtersfiles: "fail" (default), "warn", "ignore".

Field Summary
`static java.lang.String` | `DEFAULT_TOKEN_END` The default token end string
`static java.lang.String` | `DEFAULT_TOKEN_START` The default token start string

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
`` | `FilterSet()` Default constructor.
`protected` | `FilterSet(FilterSet filterset)` Create a Filterset from another filterset.

Method Summary
`void` | `addConfiguredFilterSet(FilterSet filterSet)` Add a Filterset to this filter set.
`void` | `addFilter(FilterSet.Filter filter)` Add a new filter.
`void` | `addFilter(java.lang.String token, java.lang.String value)` Add a new filter made from the given token and value.
`java.lang.Object` | `clone()` Clone the filterset.
`FilterSet.FiltersFile` | `createFiltersfile()` Create a new FiltersFile.
`java.lang.String` | `getBeginToken()` Get the begin token for this filterset.
`java.lang.String` | `getEndToken()` Get the end token for this filterset.
`java.util.Hashtable` | `getFilterHash()` Gets the filter hash of the FilterSet.
`protected java.util.Vector` | `getFilters()` Get the filters in the filter set.
`FilterSet.OnMissing` | `getOnMissingFiltersFile()` Get the onMissingFiltersFile setting.
`protected FilterSet` | `getRef()` Get the referenced filter set.
`boolean` | `hasFilters()` Test to see if this filter set has filters.
`boolean` | `isRecurse()` Get whether recursive token expansion is enabled.
`void` | `readFiltersFromFile(java.io.File filtersFile)` Read the filters from the given file.
`java.lang.String` | `replaceTokens(java.lang.String line)` Does replacement on the given string with token matching.
`void` | `setBeginToken(java.lang.String startOfToken)` Set the string used to id the beginning of a token.
`void` | `setEndToken(java.lang.String endOfToken)` Set the string used to id the end of a token.
`void` | `setFiltersfile(java.io.File filtersFile)` Set the file containing the filters for this filterset.
`void` | `setOnMissingFiltersFile(FilterSet.OnMissing onMissingFiltersFile)` Set the behavior WRT missing filtersfiles.
`void` | `setRecurse(boolean recurse)` Set whether recursive token expansion is enabled.

Methods inherited from class org.apache.tools.ant.types.DataType
`checkAttributesAllowed, checkChildrenAllowed, circularReference, dieOnCircularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, 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`

Field Detail

### DEFAULT_TOKEN_START

    public static final java.lang.String DEFAULT_TOKEN_START

  The default token start string

  See Also:
    Constant Field Values

### DEFAULT_TOKEN_END

    public static final java.lang.String DEFAULT_TOKEN_END

  The default token end string

  See Also:
    Constant Field Values

Constructor Detail

### FilterSet

    public FilterSet()

  Default constructor.

### FilterSet

    protected FilterSet(FilterSet filterset)

  Create a Filterset from another filterset.

  Parameters:
    `filterset` - the filterset upon which this filterset will be based.

Method Detail

### getFilters

    protected java.util.Vector getFilters()

  Get the filters in the filter set.

  Returns:
    a Vector of Filter instances.

### getRef

    protected FilterSet getRef()

  Get the referenced filter set.

  Returns:
    the filterset from the reference.

### getFilterHash

    public java.util.Hashtable getFilterHash()

  Gets the filter hash of the FilterSet.

  Returns:
    The hash of the tokens and values for quick lookup.

### setFiltersfile

    public void setFiltersfile(java.io.File filtersFile)
                        throws BuildException

  Set the file containing the filters for this filterset.

  Parameters:
    `filtersFile` - sets the filter file from which to read filters for this filter set.
  Throws:
    `BuildException` - if there is an error.

### setBeginToken

    public void setBeginToken(java.lang.String startOfToken)

  Set the string used to id the beginning of a token.

  Parameters:
    `startOfToken` - The new Begintoken value.

### getBeginToken

    public java.lang.String getBeginToken()

  Get the begin token for this filterset.

  Returns:
    the filter set's begin token for filtering.

### setEndToken

    public void setEndToken(java.lang.String endOfToken)

  Set the string used to id the end of a token.

  Parameters:
    `endOfToken` - The new Endtoken value.

### getEndToken

    public java.lang.String getEndToken()

  Get the end token for this filterset.

  Returns:
    the filter set's end token for replacement delimiting.

### setRecurse

    public void setRecurse(boolean recurse)

  Set whether recursive token expansion is enabled.

  Parameters:
    `recurse` - `boolean` whether to recurse.

### isRecurse

    public boolean isRecurse()

  Get whether recursive token expansion is enabled.

  Returns:
    `boolean` whether enabled.

### readFiltersFromFile

    public void readFiltersFromFile(java.io.File filtersFile)
                             throws BuildException

  Read the filters from the given file.

  Parameters:
    `filtersFile` - the file from which filters are read.
  Throws:
    `BuildException` - when the file cannot be read.

### replaceTokens

    public java.lang.String replaceTokens(java.lang.String line)

  Does replacement on the given string with token matching. This uses the defined begintoken and endtoken values which default to @ for both. This resets the passedTokens and calls iReplaceTokens to do the actual replacements.

  Parameters:
    `line` - The line in which to process embedded tokens.
  Returns:
    The input string after token replacement.

### addFilter

    public void addFilter(FilterSet.Filter filter)

  Add a new filter.

  Parameters:
    `filter` - the filter to be added.

### createFiltersfile

    public FilterSet.FiltersFile createFiltersfile()

  Create a new FiltersFile.

  Returns:
    The filtersfile that was created.

### addFilter

    public void addFilter(java.lang.String token,
                          java.lang.String value)

  Add a new filter made from the given token and value.

  Parameters:
    `token` - The token for the new filter.
    `value` - The value for the new filter.

### addConfiguredFilterSet

    public void addConfiguredFilterSet(FilterSet filterSet)

  Add a Filterset to this filter set.

  Parameters:
    `filterSet` - the filterset to be added to this filterset

### hasFilters

    public boolean hasFilters()

  Test to see if this filter set has filters.

  Returns:
    Return true if there are filters in this set.

### clone

    public java.lang.Object clone()
                           throws BuildException

  Clone the filterset.

  Overrides:
    `clone` in class `DataType`
  Returns:
    a deep clone of this filterset.
  Throws:
    `BuildException` - if the clone cannot be performed.

### setOnMissingFiltersFile

    public void setOnMissingFiltersFile(FilterSet.OnMissing onMissingFiltersFile)

  Set the behavior WRT missing filtersfiles.

  Parameters:
    `onMissingFiltersFile` - the OnMissing describing the behavior.

### getOnMissingFiltersFile

    public FilterSet.OnMissing getOnMissingFiltersFile()

  Get the onMissingFiltersFile setting.

  Returns:
    the OnMissing instance.

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