MaltParser 1.4.1

org.maltparser.core.syntaxgraph.feature
Class ColumnFeature

java.lang.Object
  extended by org.maltparser.core.syntaxgraph.feature.ColumnFeature
All Implemented Interfaces:
FeatureFunction, Function, Modifiable
Direct Known Subclasses:
InputColumnFeature, OutputColumnFeature

public abstract class ColumnFeature
extends Object
implements FeatureFunction, Modifiable

Author:
Johan Hall

Field Summary
protected  ColumnDescription column
           
protected  SingleFeatureValue featureValue
           
 
Constructor Summary
ColumnFeature()
           
 
Method Summary
 boolean equals(Object obj)
           
 int getCode(String value)
          Returns the integer representation of the string symbol according to the feature function.
 ColumnDescription getColumn()
           
 String getColumnName()
           
 FeatureValue getFeatureValue()
          Returns the feature value
abstract  Class<?>[] getParameterTypes()
          Returns an array of class types used by the feature extraction system to invoke initialize with correct arguments.
 String getSymbol(int value)
          Returns the string representation of the integer code according to the feature function.
 SymbolTable getSymbolTable()
          Returns the symbol table used by the feature function.
abstract  void initialize(Object[] arguments)
          Initialize the feature function
protected  void setColumn(ColumnDescription column)
           
 void setFeatureValue(int value)
          Override the feature value of the feature function.
 void setFeatureValue(String value)
          Override the feature value of the feature function.
 String toString()
           
abstract  void update()
          Cause the feature function to update the feature value.
 void updateCardinality()
          Cause the feature function to update the cardinality of the feature value.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

column

protected ColumnDescription column

featureValue

protected SingleFeatureValue featureValue
Constructor Detail

ColumnFeature

public ColumnFeature()
              throws MaltChainedException
Throws:
MaltChainedException
Method Detail

update

public abstract void update()
                     throws MaltChainedException
Description copied from interface: Function
Cause the feature function to update the feature value.

Specified by:
update in interface Function
Throws:
MaltChainedException

initialize

public abstract void initialize(Object[] arguments)
                         throws MaltChainedException
Description copied from interface: Function
Initialize the feature function

Specified by:
initialize in interface Function
Parameters:
arguments - an array of arguments with the type returned by getParameterTypes()
Throws:
MaltChainedException

getParameterTypes

public abstract Class<?>[] getParameterTypes()
Description copied from interface: Function
Returns an array of class types used by the feature extraction system to invoke initialize with correct arguments.

Specified by:
getParameterTypes in interface Function
Returns:
an array of class types

getSymbol

public String getSymbol(int value)
                 throws MaltChainedException
Description copied from interface: FeatureFunction
Returns the string representation of the integer code according to the feature function.

Specified by:
getSymbol in interface FeatureFunction
Parameters:
value - the integer representation of the symbol
Returns:
the string representation of the integer code according to the feature function.
Throws:
MaltChainedException

getCode

public int getCode(String value)
            throws MaltChainedException
Description copied from interface: FeatureFunction
Returns the integer representation of the string symbol according to the feature function.

Specified by:
getCode in interface FeatureFunction
Parameters:
value - the string representation of the symbol
Returns:
the integer representation of the string symbol according to the feature function.
Throws:
MaltChainedException

getColumn

public ColumnDescription getColumn()

setColumn

protected void setColumn(ColumnDescription column)

updateCardinality

public void updateCardinality()
Description copied from interface: FeatureFunction
Cause the feature function to update the cardinality of the feature value.

Specified by:
updateCardinality in interface FeatureFunction

setFeatureValue

public void setFeatureValue(int value)
                     throws MaltChainedException
Description copied from interface: Modifiable
Override the feature value of the feature function.

Specified by:
setFeatureValue in interface Modifiable
Parameters:
value - an integer representation of the symbol
Throws:
MaltChainedException

setFeatureValue

public void setFeatureValue(String value)
                     throws MaltChainedException
Description copied from interface: Modifiable
Override the feature value of the feature function.

Specified by:
setFeatureValue in interface Modifiable
Parameters:
value - an string representation of the symbol
Throws:
MaltChainedException

getFeatureValue

public FeatureValue getFeatureValue()
Description copied from interface: FeatureFunction
Returns the feature value

Specified by:
getFeatureValue in interface FeatureFunction
Returns:
the feature value

equals

public boolean equals(Object obj)
Overrides:
equals in class Object

getColumnName

public String getColumnName()

getSymbolTable

public SymbolTable getSymbolTable()
Description copied from interface: FeatureFunction
Returns the symbol table used by the feature function.

Specified by:
getSymbolTable in interface FeatureFunction
Returns:
the symbol table used by the feature function.

toString

public String toString()
Overrides:
toString in class Object

MaltParser 1.4.1

Copyright 2007-2010 Johan Hall, Jens Nilsson and Joakim Nivre.