EntityIdExtractor (uk.gov.gchq.gaffer:gaffer2 2.3.1 API)

java.lang.Object
- uk.gov.gchq.gaffer.operation.data.generator.EntityIdExtractor

All Implemented Interfaces:

Function<Iterable<? extends Element>,Iterable<? extends EntityId>>, ObjectGenerator<EntityId>, OneToOneObjectGenerator<EntityId>
```
public class EntityIdExtractor
extends Object
implements OneToOneObjectGenerator<EntityId>
```
Generates ElementIds from and Elements. getObject(Element) is not supported with Entitys - an IllegalArgumentException will be thrown if this is attempted.

Constructor Summary

Constructors
Constructor Description

EntityIdExtractor()

EntityIdExtractor(IdentifierType edgeIdentifierToExtract)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`EntityId`	`_apply(Element element)`
`IdentifierType`	`getEdgeIdentifierToExtract()`
`void`	`setEdgeIdentifierToExtract(IdentifierType edgeIdentifierToExtract)`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.function.Function
andThen, compose

Methods inherited from interface uk.gov.gchq.gaffer.data.generator.OneToOneObjectGenerator
apply

Constructor Detail

EntityIdExtractor
```
public EntityIdExtractor()
```

EntityIdExtractor

public EntityIdExtractor(IdentifierType edgeIdentifierToExtract)

Method Detail
- getEdgeIdentifierToExtract
```
public IdentifierType getEdgeIdentifierToExtract()
```
- setEdgeIdentifierToExtract
```
public void setEdgeIdentifierToExtract(IdentifierType edgeIdentifierToExtract)
```
- _apply
```
public EntityId _apply(Element element)
```
  Specified by:
  
  _apply in interface OneToOneObjectGenerator<EntityId>
  
  Parameters:
  
  element - the element to convert to EntityId.
  
  Returns:
  
  the EntityId extracted from the element