weka.core

## Class FindWithCapabilities

- java.lang.Object
- - weka.core.FindWithCapabilities

- All Implemented Interfaces:
    CapabilitiesHandler, OptionHandler, RevisionHandler

      public class FindWithCapabilities
      extends java.lang.Object
      implements OptionHandler, CapabilitiesHandler, RevisionHandler

  Locates all classes with certain capabilities. One should keep in mind, that works only with the default capabilities of a scheme and doesn't take dependencies into account. E.g., a meta-classifier that could have a base classifier handling numeric classes, but by default uses one with a nominal class, will never show up in a search for schemes that handle numeric classes.

  Valid options are:

       All class and attribute options can be prefixed with 'not',
       e.g., '-not-numeric-class'. This makes sure that the returned
       schemes 'cannot' handle numeric classes.

       -num-instances <num>
        The minimum number of instances (default 1).

       -unary-class
        Must handle unray classes.

       -binary-class
        Must handle binary classes.

       -nominal-class
        Must handle nominal classes.

       -numeric-class
        Must handle numeric classes.

       -string-class
        Must handle string classes.

       -date-class
        Must handle date classes.

       -relational-class
        Must handle relational classes.

       -missing-class-values
        Must handle missing class values.

       -no-class
        Doesn't need a class.

       -unary-atts
        Must handle unary attributes.

       -binary-atts
        Must handle binary attributes.

       -nominal-atts
        Must handle nominal attributes.

       -numeric-atts
        Must handle numeric attributes.

       -string-atts
        Must handle string attributes.

       -date-atts
        Must handle date attributes.

       -relational-atts
        Must handle relational attributes.

       -missing-att-values
        Must handle missing attribute values.

       -only-multiinstance
        Must handle multi-instance data.

       -W <classname>
        The Capabilities handler to base the handling on.
        The other parameters can be used to override the ones
        determined from the handler. Additional parameters for
        handler can be passed on after the '--'.
        Either '-W' or '-t' can be used.

       -t <file>
        The dataset to base the capabilities on.
        The other parameters can be used to override the ones
        determined from the handler.
        Either '-t' or '-W' can be used.

       -c <num>
        The index of the class attribute, -1 for none.
        'first' and 'last' are also valid.
        Only in conjunction with option '-t'.

       -superclass
        Superclass to look for in the packages.

       -packages
        Comma-separated list of packages to search in.

       -generic
        Retrieves the package list from the GenericPropertiesCreator
        for the given superclass. (overrides -packages <list>).

       -misses
        Also prints the classname that didn't match the criteria.

  Version:
    $Revision: 11004 $
  Author:
    fracpete (fracpete at waikato dot ac dot nz)
  See Also:
    `Capabilities`, `Capabilities.Capability`, `GenericPropertiesCreator`

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `FindWithCapabilities()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `disable(Capabilities.Capability c)` disables the given capability.
    `void` | `disableNot(Capabilities.Capability c)` disables the given "not to have" capability.
    `void` | `enable(Capabilities.Capability c)` enables the given capability.
    `void` | `enableNot(Capabilities.Capability c)` enables the given "not to have" capability.
    `java.util.Vector<java.lang.String>` | `find()` returns a list with all the classnames that fit the criteria.
    `Capabilities` | `getCapabilities()` The capabilities to search for.
    `java.lang.String` | `getClassIndex()` returns the current current class index, -1 if no class attribute.
    `boolean` | `getDoNotCheckCapabilities()` Get whether capabilities checking is turned off.
    `java.lang.String` | `getFilename()` returns the current filename for the dataset to base the capabilities on.
    `CapabilitiesHandler` | `getHandler()` returns the current set CapabilitiesHandler to generate the dataset for, can be null.
    `java.util.Vector<java.lang.String>` | `getMatches()` returns the matches from the last find call.
    `java.util.Vector<java.lang.String>` | `getMisses()` returns the misses from the last find call.
    `Capabilities` | `getNotCapabilities()` The "not to have" capabilities to search for.
    `java.lang.String[]` | `getOptions()` Gets the current settings of this object.
    `java.lang.String` | `getRevision()` Returns the revision string.
    `boolean` | `handles(Capabilities.Capability c)` returns true if the given capability can be handled.
    `boolean` | `isEnabled(Capabilities.Capability c)` whether the given capability is enabled.
    `boolean` | `isEnabledNot(Capabilities.Capability c)` whether the given "not to have" capability is enabled.
    `java.util.Enumeration<Option>` | `listOptions()` Returns an enumeration describing the available options.
    `static void` | `main(java.lang.String[] args)` Executes the location of classes with parameters from the commandline.
    `void` | `setCapabilities(Capabilities c)` Uses the given Capabilities for the search.
    `void` | `setClassIndex(java.lang.String value)` sets the class index, -1 for none, first and last are also valid.
    `void` | `setDoNotCheckCapabilities(boolean doNotCheckCapabilities)` Set whether not to check capabilities.
    `void` | `setFilename(java.lang.String value)` Sets the dataset filename to base the capabilities on.
    `void` | `setHandler(CapabilitiesHandler value)` sets the Capabilities handler to generate the data for.
    `void` | `setNotCapabilities(Capabilities c)` Uses the given "not to have" Capabilities for the search.
    `void` | `setOptions(java.lang.String[] options)` Parses a given list of options.

    - ### Methods inherited from class java.lang.Object

      `equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### FindWithCapabilities

          public FindWithCapabilities()

  - ### Method Detail

    - #### setDoNotCheckCapabilities

          public void setDoNotCheckCapabilities(boolean doNotCheckCapabilities)

      Set whether not to check capabilities.
      Parameters:
        `doNotCheckCapabilities` - true if capabilities are not to be checked.

    - #### getDoNotCheckCapabilities

          public boolean getDoNotCheckCapabilities()

      Get whether capabilities checking is turned off.
      Returns:
        true if capabilities checking is turned off.

    - #### listOptions

          public java.util.Enumeration<Option> listOptions()

      Returns an enumeration describing the available options.
      Specified by:
        `listOptions` in interface `OptionHandler`
      Returns:
        an enumeration of all the available options.

    - #### setOptions

          public void setOptions(java.lang.String[] options)
                          throws java.lang.Exception

      Parses a given list of options.
      Specified by:
        `setOptions` in interface `OptionHandler`
      Parameters:
        `options` - the list of options as an array of strings
      Throws:
        `java.lang.Exception` - if an option is not supported

    - #### getOptions

          public java.lang.String[] getOptions()

      Gets the current settings of this object.
      Specified by:
        `getOptions` in interface `OptionHandler`
      Returns:
        an array of strings suitable for passing to setOptions

    - #### setHandler

          public void setHandler(CapabilitiesHandler value)

      sets the Capabilities handler to generate the data for.
      Parameters:
        `value` - the handler

    - #### getHandler

          public CapabilitiesHandler getHandler()

      returns the current set CapabilitiesHandler to generate the dataset for, can be null.
      Returns:
        the handler

    - #### setFilename

          public void setFilename(java.lang.String value)

      Sets the dataset filename to base the capabilities on. It immediately loads the dataset and retrieves the capabilities from it.
      Parameters:
        `value` - the filename of the dataset

    - #### getFilename

          public java.lang.String getFilename()

      returns the current filename for the dataset to base the capabilities on.
      Returns:
        the filename of the dataset

    - #### setClassIndex

          public void setClassIndex(java.lang.String value)

      sets the class index, -1 for none, first and last are also valid.
      Parameters:
        `value` - the class index

    - #### getClassIndex

          public java.lang.String getClassIndex()

      returns the current current class index, -1 if no class attribute.
      Returns:
        the class index

    - #### enable

          public void enable(Capabilities.Capability c)

      enables the given capability.
      Parameters:
        `c` - the capability to enable

    - #### isEnabled

          public boolean isEnabled(Capabilities.Capability c)

      whether the given capability is enabled.
      Parameters:
        `c` - the capability to enable
      Returns:
        true if the capability is enabled

    - #### disable

          public void disable(Capabilities.Capability c)

      disables the given capability.
      Parameters:
        `c` - the capability to disable

    - #### enableNot

          public void enableNot(Capabilities.Capability c)

      enables the given "not to have" capability.
      Parameters:
        `c` - the capability to enable

    - #### isEnabledNot

          public boolean isEnabledNot(Capabilities.Capability c)

      whether the given "not to have" capability is enabled.
      Parameters:
        `c` - the capability to enable
      Returns:
        true if the capability is enabled

    - #### disableNot

          public void disableNot(Capabilities.Capability c)

      disables the given "not to have" capability.
      Parameters:
        `c` - the capability to disable

    - #### handles

          public boolean handles(Capabilities.Capability c)

      returns true if the given capability can be handled.
      Parameters:
        `c` - the capability to check
      Returns:
        true if the capability can be handled

    - #### getCapabilities

          public Capabilities getCapabilities()

      The capabilities to search for.
      Specified by:
        `getCapabilities` in interface `CapabilitiesHandler`
      Returns:
        the capabilities to search for
      See Also:
        `Capabilities`

    - #### setCapabilities

          public void setCapabilities(Capabilities c)

      Uses the given Capabilities for the search.
      Parameters:
        `c` - the capabilities to use for the search

    - #### getNotCapabilities

          public Capabilities getNotCapabilities()

      The "not to have" capabilities to search for.
      Returns:
        the capabilities to search for
      See Also:
        `Capabilities`

    - #### setNotCapabilities

          public void setNotCapabilities(Capabilities c)

      Uses the given "not to have" Capabilities for the search.
      Parameters:
        `c` - the capabilities to use for the search

    - #### getMatches

          public java.util.Vector<java.lang.String> getMatches()

      returns the matches from the last find call.
      Returns:
        the matching classname from the last find run

    - #### getMisses

          public java.util.Vector<java.lang.String> getMisses()

      returns the misses from the last find call.
      Returns:
        the classnames that didn't match from the last find run

    - #### find

          public java.util.Vector<java.lang.String> find()

      returns a list with all the classnames that fit the criteria.
      Returns:
        contains all classnames that fit the criteria

    - #### getRevision

          public java.lang.String getRevision()

      Returns the revision string.
      Specified by:
        `getRevision` in interface `RevisionHandler`
      Returns:
        the revision

    - #### main

          public static void main(java.lang.String[] args)

      Executes the location of classes with parameters from the commandline.
      Parameters:
        `args` - the commandline parameters