All Known Implementing Classes:

AbstractIndexingContext, DefaultIndexingContext, MergedIndexingContext
```
public interface IndexingContext
```
An indexing context is representing artifact repository for indexing and searching. Indexing context is a statefull component, it keeps state of index readers and writers.

Field Summary

Fields
Modifier and Type	Field	Description
`static java.lang.String`	`INDEX_CHAIN_ID`	An id that defines the current incremental chain.
`static java.lang.String`	`INDEX_CHUNK_COUNTER`	A counter used to id the chunks
`static java.lang.String`	`INDEX_CHUNK_PREFIX`	A prefix used to specify an incremental update chunk name
`static java.lang.String`	`INDEX_FILE_PREFIX`	Standard name of the full repository index that is used when clients requesting index information have nothing to start with.
`static java.lang.String`	`INDEX_ID`	A property name used to specify index id
`static java.lang.String`	`INDEX_LEGACY_TIMESTAMP`	A property name used to specify legacy index timestamp (the last update time)
`static java.lang.String`	`INDEX_PACKER_PROPERTIES_FILE`
`static java.lang.String`	`INDEX_PROPERTY_PREFIX`	A prefix used for all index property names
`static java.lang.String`	`INDEX_REMOTE_PROPERTIES_FILE`
`static java.lang.String`	`INDEX_TIME_DAY_FORMAT`	A date format used for incremental update chunk names
`static java.lang.String`	`INDEX_TIME_FORMAT`	A date format used for index timestamp
`static java.lang.String`	`INDEX_TIMESTAMP`	A property name used to specify index timtestamp
`static java.lang.String`	`INDEX_UPDATER_PROPERTIES_FILE`

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`org.apache.lucene.search.IndexSearcher`	`acquireIndexSearcher()`	Acquires a fresh instance of `IndexSearcher`.
`void`	`close(boolean deleteFiles)`	Shuts down this context.
`void`	`commit()`	Commits changes to context, eventually refreshing readers/searchers too.
`java.util.Set<java.lang.String>`	`getAllGroups()`	Gets all group names stored in the current indexing context
`org.apache.lucene.analysis.Analyzer`	`getAnalyzer()`	Returns the Lucene Analyzer of this context used for by IndexWriter and IndexSearcher.
`GavCalculator`	`getGavCalculator()`	Returns the GavCalculator for this Context.
`java.lang.String`	`getId()`	Returns this indexing context id.
`java.util.List<IndexCreator>`	`getIndexCreators()`	List of IndexCreators used in this context.
`org.apache.lucene.store.Directory`	`getIndexDirectory()`
`java.io.File`	`getIndexDirectoryFile()`
`java.lang.String`	`getIndexUpdateUrl()`	Returns url for the index update
`org.apache.lucene.index.IndexWriter`	`getIndexWriter()`	Returns the Lucene IndexWriter (thread safe, shared instance) of this context.
`java.io.File`	`getRepository()`	Returns location for the local repository.
`java.lang.String`	`getRepositoryId()`	Returns repository id.
`java.lang.String`	`getRepositoryUrl()`	Returns public repository url.
`java.util.Set<java.lang.String>`	`getRootGroups()`	Gets root group names stored in the current indexing context
`int`	`getSize()`	Returns a number that represents the "size" useful for doing comparisons between contexts (which one has more data indexed?).
`java.util.Date`	`getTimestamp()`	Returns index update time
`boolean`	`isReceivingUpdates()`	Returns true if this context is receiving updates from remote via IndexUpdater.
`boolean`	`isSearchable()`	Is the context searchable when doing "non-targeted" searches? Ie.
`void`	`merge(org.apache.lucene.store.Directory directory)`	Merges content of given Lucene directory with this context.
`void`	`merge(org.apache.lucene.store.Directory directory, DocumentFilter filter)`	Merges content of given Lucene directory with this context, but filters out the unwanted ones.
`void`	`optimize()`	Optimizes index.
`void`	`purge()`	Purge (cleans) the context, deletes/empties the index and restores the context to new/empty state.
`void`	`rebuildGroups()`	Rebuilds stored group names from the index
`void`	`releaseIndexSearcher(org.apache.lucene.search.IndexSearcher s)`	Releases the `IndexSearcher` instance.
`void`	`replace(org.apache.lucene.store.Directory directory)`	Replaces the Lucene index with the one from supplied directory.
`void`	`replace(org.apache.lucene.store.Directory directory, java.util.Set<java.lang.String> allGroups, java.util.Set<java.lang.String> rootGroups)`
`void`	`rollback()`	Rolls back changes to context, eventually refreshing readers/searchers too.
`void`	`setAllGroups(java.util.Collection<java.lang.String> groups)`	Sets all group names stored in the current indexing context
`void`	`setRootGroups(java.util.Collection<java.lang.String> groups)`	Sets root group names stored in the current indexing context
`void`	`setSearchable(boolean searchable)`	Sets is the context searchable when doing "non-targeted" searches.
`void`	`updateTimestamp()`
`void`	`updateTimestamp(boolean save)`
`void`	`updateTimestamp(boolean save, java.util.Date date)`

- Field Detail
  - INDEX_FILE_PREFIX
```
static final java.lang.String INDEX_FILE_PREFIX
```
    Standard name of the full repository index that is used when clients requesting index information have nothing to start with.
    
    See Also:
    
    Constant Field Values
  - INDEX_REMOTE_PROPERTIES_FILE
```
static final java.lang.String INDEX_REMOTE_PROPERTIES_FILE
```
    See Also:
    
    Constant Field Values
  - INDEX_UPDATER_PROPERTIES_FILE
```
static final java.lang.String INDEX_UPDATER_PROPERTIES_FILE
```
    See Also:
    
    Constant Field Values
  - INDEX_PACKER_PROPERTIES_FILE
```
static final java.lang.String INDEX_PACKER_PROPERTIES_FILE
```
    See Also:
    
    Constant Field Values
  - INDEX_PROPERTY_PREFIX
```
static final java.lang.String INDEX_PROPERTY_PREFIX
```
    A prefix used for all index property names
    
    See Also:
    
    Constant Field Values
  - INDEX_ID
```
static final java.lang.String INDEX_ID
```
    A property name used to specify index id
    
    See Also:
    
    Constant Field Values
  - INDEX_LEGACY_TIMESTAMP
```
static final java.lang.String INDEX_LEGACY_TIMESTAMP
```
    A property name used to specify legacy index timestamp (the last update time)
    
    See Also:
    
    Constant Field Values
  - INDEX_TIMESTAMP
```
static final java.lang.String INDEX_TIMESTAMP
```
    A property name used to specify index timtestamp
    
    See Also:
    
    Constant Field Values
  - INDEX_CHUNK_PREFIX
```
static final java.lang.String INDEX_CHUNK_PREFIX
```
    A prefix used to specify an incremental update chunk name
    
    See Also:
    
    Constant Field Values
  - INDEX_TIME_FORMAT
```
static final java.lang.String INDEX_TIME_FORMAT
```
    A date format used for index timestamp
    
    See Also:
    
    Constant Field Values
  - INDEX_TIME_DAY_FORMAT
```
static final java.lang.String INDEX_TIME_DAY_FORMAT
```
    A date format used for incremental update chunk names
    
    See Also:
    
    Constant Field Values
  - INDEX_CHUNK_COUNTER
```
static final java.lang.String INDEX_CHUNK_COUNTER
```
    A counter used to id the chunks
    
    See Also:
    
    Constant Field Values
  - INDEX_CHAIN_ID
```
static final java.lang.String INDEX_CHAIN_ID
```
    An id that defines the current incremental chain. If when checking remote repo, the index chain doesn't match you'll know that you need to download the full index
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getId
```
java.lang.String getId()
```
    Returns this indexing context id.
  - getRepositoryId
```
java.lang.String getRepositoryId()
```
    Returns repository id.
  - getRepository
```
java.io.File getRepository()
```
    Returns location for the local repository.
  - getRepositoryUrl
```
java.lang.String getRepositoryUrl()
```
    Returns public repository url.
  - getIndexUpdateUrl
```
java.lang.String getIndexUpdateUrl()
```
    Returns url for the index update
  - isSearchable
```
boolean isSearchable()
```
    Is the context searchable when doing "non-targeted" searches? Ie. Should it take a part when searching without specifying context?
    
    Returns:
  - setSearchable
```
void setSearchable(boolean searchable)
```
    Sets is the context searchable when doing "non-targeted" searches.
    
    Parameters:
    
    searchable -
  - getTimestamp
```
java.util.Date getTimestamp()
```
    Returns index update time
  - updateTimestamp
```
void updateTimestamp()
              throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - updateTimestamp
```
void updateTimestamp(boolean save)
              throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - updateTimestamp
```
void updateTimestamp(boolean save,
                     java.util.Date date)
              throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - getSize
```
int getSize()
     throws java.io.IOException
```
    Returns a number that represents the "size" useful for doing comparisons between contexts (which one has more data indexed?). The number return does not represent the count of ArtifactInfos, neither other "meaningful" info, it is purely to be used for inter-context comparisons only!
    
    Returns:
    
    Throws:
    
    java.io.IOException
  - acquireIndexSearcher
```
org.apache.lucene.search.IndexSearcher acquireIndexSearcher()
                                                     throws java.io.IOException
```
    Acquires a fresh instance of IndexSearcher. You have to release the received instance with releaseIndexSearcher(IndexSearcher) otherwise you are about to introduce leak.
    
    Returns:
    
    Throws:
    
    java.io.IOException
  - releaseIndexSearcher
```
void releaseIndexSearcher(org.apache.lucene.search.IndexSearcher s)
                   throws java.io.IOException
```
    Releases the IndexSearcher instance.
    
    Parameters:
    
    s -
    
    Throws:
    
    java.io.IOException
  - getIndexWriter
```
org.apache.lucene.index.IndexWriter getIndexWriter()
                                            throws java.io.IOException
```
    Returns the Lucene IndexWriter (thread safe, shared instance) of this context.
    
    Returns:
    
    indexWriter
    
    Throws:
    
    java.io.IOException
  - getIndexCreators
```
java.util.List<IndexCreator> getIndexCreators()
```
    List of IndexCreators used in this context.
    
    Returns:
    
    list of index creators.
  - getAnalyzer
```
org.apache.lucene.analysis.Analyzer getAnalyzer()
```
    Returns the Lucene Analyzer of this context used for by IndexWriter and IndexSearcher. Note: this method always creates a new instance of analyzer!
    
    Returns:
  - commit
```
void commit()
     throws java.io.IOException
```
    Commits changes to context, eventually refreshing readers/searchers too.
    
    Throws:
    
    java.io.IOException
  - rollback
```
void rollback()
       throws java.io.IOException
```
    Rolls back changes to context, eventually refreshing readers/searchers too.
    
    Throws:
    
    java.io.IOException
  - optimize
```
void optimize()
       throws java.io.IOException
```
    Optimizes index. According to Lucene 3.6+ Javadoc, there is no more sense to optimize, so this method might become "noop".
    
    Throws:
    
    java.io.IOException
  - close
```
void close(boolean deleteFiles)
    throws java.io.IOException
```
    Shuts down this context.
    
    Throws:
    
    java.io.IOException
  - purge
```
void purge()
    throws java.io.IOException
```
    Purge (cleans) the context, deletes/empties the index and restores the context to new/empty state.
    
    Throws:
    
    java.io.IOException
  - merge
```
void merge(org.apache.lucene.store.Directory directory)
    throws java.io.IOException
```
    Merges content of given Lucene directory with this context.
    
    Parameters:
    
    directory - - the directory to merge
    
    Throws:
    
    java.io.IOException
  - merge
```
void merge(org.apache.lucene.store.Directory directory,
           DocumentFilter filter)
    throws java.io.IOException
```
    Merges content of given Lucene directory with this context, but filters out the unwanted ones.
    
    Parameters:
    
    directory - - the directory to merge
    
    Throws:
    
    java.io.IOException
  - replace
```
void replace(org.apache.lucene.store.Directory directory)
      throws java.io.IOException
```
    Replaces the Lucene index with the one from supplied directory.
    
    Parameters:
    
    directory -
    
    Throws:
    
    java.io.IOException
  - replace
```
void replace(org.apache.lucene.store.Directory directory,
             java.util.Set<java.lang.String> allGroups,
             java.util.Set<java.lang.String> rootGroups)
      throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - getIndexDirectory
```
org.apache.lucene.store.Directory getIndexDirectory()
```
  - getIndexDirectoryFile
```
java.io.File getIndexDirectoryFile()
```
  - getGavCalculator
```
GavCalculator getGavCalculator()
```
    Returns the GavCalculator for this Context. Implies repository layout.
  - setAllGroups
```
void setAllGroups(java.util.Collection<java.lang.String> groups)
           throws java.io.IOException
```
    Sets all group names stored in the current indexing context
    
    Throws:
    
    java.io.IOException
  - getAllGroups
```
java.util.Set<java.lang.String> getAllGroups()
                                      throws java.io.IOException
```
    Gets all group names stored in the current indexing context
    
    Throws:
    
    java.io.IOException
  - setRootGroups
```
void setRootGroups(java.util.Collection<java.lang.String> groups)
            throws java.io.IOException
```
    Sets root group names stored in the current indexing context
    
    Throws:
    
    java.io.IOException
  - getRootGroups
```
java.util.Set<java.lang.String> getRootGroups()
                                       throws java.io.IOException
```
    Gets root group names stored in the current indexing context
    
    Throws:
    
    java.io.IOException
  - rebuildGroups
```
void rebuildGroups()
            throws java.io.IOException
```
    Rebuilds stored group names from the index
    
    Throws:
    
    java.io.IOException
  - isReceivingUpdates
```
boolean isReceivingUpdates()
```
    Returns true if this context is receiving updates from remote via IndexUpdater.
    
    Returns:

Interface IndexingContext

Field Summary

Method Summary

Field Detail

INDEX_FILE_PREFIX

INDEX_REMOTE_PROPERTIES_FILE

INDEX_UPDATER_PROPERTIES_FILE

INDEX_PACKER_PROPERTIES_FILE

INDEX_PROPERTY_PREFIX

INDEX_ID

INDEX_LEGACY_TIMESTAMP

INDEX_TIMESTAMP

INDEX_CHUNK_PREFIX

INDEX_TIME_FORMAT

INDEX_TIME_DAY_FORMAT

INDEX_CHUNK_COUNTER

INDEX_CHAIN_ID

Method Detail

getId

getRepositoryId

getRepository

getRepositoryUrl

getIndexUpdateUrl

isSearchable

setSearchable

getTimestamp

updateTimestamp

updateTimestamp

updateTimestamp

getSize

acquireIndexSearcher

releaseIndexSearcher

getIndexWriter

getIndexCreators

getAnalyzer

commit

rollback

optimize

close

purge

merge

merge

replace

replace

getIndexDirectory

getIndexDirectoryFile

getGavCalculator

setAllGroups

getAllGroups

setRootGroups

getRootGroups

rebuildGroups

isReceivingUpdates