Method DoOpenIfChanged
DoOpenIfChanged()
Implement this method to support OpenIfChanged(DirectoryReader).
If this reader does not support reopen, return null, so
client code is happy. This should be consistent with IsCurrent()
(should always return true) if reopen is not supported.
Declaration
protected abstract DirectoryReader DoOpenIfChanged()Returns
| Type | Description |
|---|---|
| DirectoryReader |
|
DoOpenIfChanged(IndexCommit)
Implement this method to support OpenIfChanged(DirectoryReader, IndexCommit).
If this reader does not support reopen from a specific IndexCommit,
throw
Declaration
protected abstract DirectoryReader DoOpenIfChanged(IndexCommit commit)Parameters
| Type | Name | Description |
|---|---|---|
| IndexCommit | commit |
Returns
| Type | Description |
|---|---|
| DirectoryReader |
|
DoOpenIfChanged(IndexWriter, Boolean)
Implement this method to support OpenIfChanged(DirectoryReader, IndexWriter, Boolean).
If this reader does not support reopen from IndexWriter,
throw
Declaration
protected abstract DirectoryReader DoOpenIfChanged(IndexWriter writer, bool applyAllDeletes)Parameters
| Type | Name | Description |
|---|---|---|
| IndexWriter | writer | |
| System.Boolean | applyAllDeletes |
Returns
| Type | Description |
|---|---|
| DirectoryReader |
|
