StatementMerger (OpenRefine 4.0-SNAPSHOT API)

All Known Implementing Classes:

PropertyOnlyStatementMerger, QualifiersStatementMerger, SnakOnlyStatementMerger
```
public interface StatementMerger
```
Object which determines how uploaded statements are matched with existing statements on the edited entity.

Author:

Antonin Delpeuch

Field Summary

Fields
Modifier and Type Field Description

static StatementMerger FORMER_DEFAULT_STRATEGY
Default strategy used in previous versions of the tool, where no strategy could be specified.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`match(org.wikidata.wdtk.datamodel.interfaces.Statement existing, org.wikidata.wdtk.datamodel.interfaces.Statement added)`	Determines if the existing statement matches the statement to add (or remove)
`org.wikidata.wdtk.datamodel.interfaces.Statement`	`merge(org.wikidata.wdtk.datamodel.interfaces.Statement existing, org.wikidata.wdtk.datamodel.interfaces.Statement added)`	Return the result of merging the statement to add with the existing statement.

- Field Detail
  - FORMER_DEFAULT_STRATEGY
```
static final StatementMerger FORMER_DEFAULT_STRATEGY
```
    Default strategy used in previous versions of the tool, where no strategy could be specified. TODO make it faithful to what it was before.
- Method Detail
  - match
```
boolean match(org.wikidata.wdtk.datamodel.interfaces.Statement existing,
              org.wikidata.wdtk.datamodel.interfaces.Statement added)
```
    Determines if the existing statement matches the statement to add (or remove)
    
    Parameters:
    
    existing - the statement currently on the entity
    
    added - the statement to add or remove
    
    Returns:
  - merge
```
org.wikidata.wdtk.datamodel.interfaces.Statement merge(org.wikidata.wdtk.datamodel.interfaces.Statement existing,
                                                       org.wikidata.wdtk.datamodel.interfaces.Statement added)
```
    Return the result of merging the statement to add with the existing statement. This method can assume that the two statements are matching (i.e. the method above has returned true on them).
    
    Parameters:
    
    existing - the statement currently on the entity
    
    added - the statement to add or remove
    
    Returns:
    
    the merged statement obtained out of the two