Package org.openrefine.wikidata.schema

Class WbLanguageVariable

java.lang.Object

org.openrefine.wikidata.schema.WbVariableExpr<String>

org.openrefine.wikidata.schema.WbLanguageVariable

All Implemented Interfaces:

WbExpression<String>

public class WbLanguageVariable
extends WbVariableExpr<String>

A language variable generates a language code from a cell. It checks its values against a known list of valid language codes and fixes on the fly the deprecated ones (see WbLanguageConstant).

Constructor Summary

Constructors

Constructor	Description
WbLanguageVariable()
WbLanguageVariable(String columnName)	Constructs a variable and sets the column it is bound to.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object other)
String	fromCell(Cell cell, ExpressionContext ctxt)	Method that should be implemented by subclasses, converting an OpenRefine cell to a Wikibase value.

Methods inherited from class org.openrefine.wikidata.schema.WbVariableExpr

equalAsVariables, evaluate, getColumnName, hashCode, setColumnName

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

WbLanguageVariable

public WbLanguageVariable()

WbLanguageVariable

public WbLanguageVariable(String columnName)

Constructs a variable and sets the column it is bound to. Mostly used as a convenience method for testing.

Parameters:

columnName - the name of the column the expression should draw its value from

Method Details

fromCell

public String fromCell(Cell cell,
 ExpressionContext ctxt)
                throws SkipSchemaExpressionException

Description copied from class: WbVariableExpr

Method that should be implemented by subclasses, converting an OpenRefine cell to a Wikibase value. Access to other values and emitting warnings is possible via the supplied EvaluationContext object.

Specified by:

fromCell in class WbVariableExpr<String>

Parameters:

cell - the cell to convert

ctxt - the evaluation context

Returns:

the corresponding Wikibase value

Throws:

SkipSchemaExpressionException

equals

public boolean equals(Object other)

Overrides:

equals in class Object