org.maltparser.core.syntaxgraph.feature

Class ColumnFeature

java.lang.Object

org.maltparser.core.syntaxgraph.feature.ColumnFeature

All Implemented Interfaces:

FeatureFunction, Function, Modifiable

Direct Known Subclasses:

InputColumnFeature, OutputColumnFeature

public abstract class ColumnFeature
extends java.lang.Object
implements FeatureFunction, Modifiable

Author:

Johan Hall

Field Summary

Fields

Modifier and Type	Field and Description
protected ColumnDescription	column
protected SingleFeatureValue	featureValue
protected SymbolTable	symbolTable

Constructor Summary

Constructors

Constructor and Description
ColumnFeature()

Method Summary

Modifier and Type	Method and Description
protected void	castFeatureValue(java.lang.String symbol)
boolean	equals(java.lang.Object obj)
int	getCode(java.lang.String value) Returns the integer representation of the string symbol according to the feature function.
ColumnDescription	getColumn()
java.lang.String	getColumnName()
FeatureValue	getFeatureValue() Returns the feature value
java.lang.String	getMapIdentifier()
abstract java.lang.Class<?>[]	getParameterTypes() Returns an array of class types used by the feature extraction system to invoke initialize with correct arguments.
java.lang.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.
int	getType()
abstract void	initialize(java.lang.Object[] arguments) Initialize the feature function
protected void	setColumn(ColumnDescription column)
void	setFeatureValue(int indexCode) Override the feature value of the feature function.
void	setFeatureValue(java.lang.String symbol) Override the feature value of the feature function.
protected void	setSymbolTable(SymbolTable symbolTable)
java.lang.String	toString()
abstract void	update() Cause the feature function to update 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

symbolTable

protected SymbolTable symbolTable

featureValue

protected final 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(java.lang.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 java.lang.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 java.lang.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(java.lang.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)

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.

setSymbolTable

protected void setSymbolTable(SymbolTable symbolTable)

setFeatureValue

public void setFeatureValue(int indexCode)
                     throws MaltChainedException

Description copied from interface: Modifiable

Override the feature value of the feature function.

Specified by:

setFeatureValue in interface Modifiable

Parameters:

indexCode - an integer representation of the symbol

Throws:

MaltChainedException

setFeatureValue

public void setFeatureValue(java.lang.String symbol)
                     throws MaltChainedException

Description copied from interface: Modifiable

Override the feature value of the feature function.

Specified by:

setFeatureValue in interface Modifiable

Parameters:

symbol - an string representation of the symbol

Throws:

MaltChainedException

castFeatureValue

protected void castFeatureValue(java.lang.String symbol)
                         throws MaltChainedException

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(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

getColumnName

public java.lang.String getColumnName()

getType

public int getType()

Specified by:

getType in interface FeatureFunction

getMapIdentifier

public java.lang.String getMapIdentifier()

Specified by:

getMapIdentifier in interface FeatureFunction

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object