WbItemConstant (OpenRefine 4.0-SNAPSHOT API)

java.lang.Object
- org.openrefine.wikibase.schema.WbItemConstant

All Implemented Interfaces:

WbExpression<org.wikidata.wdtk.datamodel.interfaces.ItemIdValue>
```
public class WbItemConstant
extends Object
implements WbExpression<org.wikidata.wdtk.datamodel.interfaces.ItemIdValue>
```
Represents an item that does not vary, it is independent of the row.

Constructor Summary

Constructors
Constructor Description

WbItemConstant(String qid, String label)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object other)`
`org.wikidata.wdtk.datamodel.interfaces.ItemIdValue`	`evaluate(ExpressionContext ctxt)`	Evaluates the value expression in a given context, returns a Wikibase value suitable to be the target of a claim.
`String`	`getLabel()`
`String`	`getQid()`
`int`	`hashCode()`
`void`	`validate(ValidationState validation)`	Check that this expression is fully formed and ready to be evaluated.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - WbItemConstant
```
public WbItemConstant(String qid,
                      String label)
```
- Method Detail
  - validate
```
public void validate(ValidationState validation)
```
    Description copied from interface: WbExpression
    
    Check that this expression is fully formed and ready to be evaluated.
    
    Specified by:
    
    validate in interface WbExpression<org.wikidata.wdtk.datamodel.interfaces.ItemIdValue>
    
    Parameters:
    
    validation - the state in which to log any validation errors
  - evaluate
```
public org.wikidata.wdtk.datamodel.interfaces.ItemIdValue evaluate(ExpressionContext ctxt)
```
    Description copied from interface: WbExpression
    
    Evaluates the value expression in a given context, returns a Wikibase value suitable to be the target of a claim. As a premise to calling that method, we assume that calling WbExpression.validate(ValidationState) did not log any error in the validation state.
    
    Specified by:
    
    evaluate in interface WbExpression<org.wikidata.wdtk.datamodel.interfaces.ItemIdValue>
  - getQid
```
public String getQid()
```
  - getLabel
```
public String getLabel()
```
  - equals
```
public boolean equals(Object other)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object