EObjectSelectionStrategy (ecp-parent 1.27.0-SNAPSHOT API)

```
public interface EObjectSelectionStrategy
```
A DefaultReferenceService customization strategy for accumulating existing EObjects eligible for addition to a reference in an owner.

Since:

1.16

See Also:

DefaultReferenceService

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface EObjectSelectionStrategy.Provider
Specific Bazaar vendor interface for EObject selection strategies.

Field Summary

Fields
Modifier and Type Field Description

static EObjectSelectionStrategy NULL
An idempotent strategy (does not modify the selection).

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.Collection<org.eclipse.emf.ecore.EObject>`	`collectExistingObjects(org.eclipse.emf.ecore.EObject owner, org.eclipse.emf.ecore.EReference reference, java.util.Collection<org.eclipse.emf.ecore.EObject> existingObjects)`	Update a collection of `EObject`s that are eligible for addition to a reference feature.

- Field Detail
  - NULL
```
static final EObjectSelectionStrategy NULL
```
    An idempotent strategy (does not modify the selection).
- Method Detail
  - collectExistingObjects
```
java.util.Collection<org.eclipse.emf.ecore.EObject> collectExistingObjects(org.eclipse.emf.ecore.EObject owner,
                                                                           org.eclipse.emf.ecore.EReference reference,
                                                                           java.util.Collection<org.eclipse.emf.ecore.EObject> existingObjects)
```
    Update a collection of EObjects that are eligible for addition to a reference feature.
    
    Parameters:
    
    owner - the proposed owner of the references to existing objects
    
    reference - the owner's reference in which to add a objects
    
    existingObjects - a mutable collection of eligible objects. Implementors may add and remove elements in this collection as needed
    
    Returns:
    
    a mutable filtered collection of objects that can be passed into the next strategy. A suggested pattern is to modify the existingObjects in place and return that collection