votorola.a.register
Class Neighbourhood.CachedTable

java.lang.Object
  Neighbourhood.Table
      Neighbourhood.CachedTable

All Implemented Interfaces:

CacheControlledTable

Enclosing class:

Neighbourhood

@ThreadRestricted
static final class Neighbourhood.CachedTable
extends Neighbourhood.Table
implements CacheControlledTable

A cached neighbourhood table, with cache controls.

Field Summary

Fields inherited from class Neighbourhood.Table

isCachingAndCommitting

Constructor Summary

Neighbourhood.CachedTable(ReadyDirectory rD, Database d)

Method Summary

(package private) void	addVoter(ListNode node) Adds a voter to the table, updating the counts for the voter's neighbourhood, and its ancestors in the tree.
void	commitAll() Writes all rows that have uncommitted changes.
(package private) Neighbourhood	get(String path, boolean isLeaf) Retrieves a neighbourhood from this table.
(package private) Neighbourhood	getOrCreate(String path, boolean isLeaf) Retrieves a neighbourhood from this table; or, if none is stored, a default neighbourhood.
void	skimFlush() Commits and removes rows from the cache, reducing it to its skimmed (normal) size.

Methods inherited from class Neighbourhood.Table

create, database, drop, exists, getAncestorOfSingleChild, getChildren, put, readyDirectory

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Neighbourhood.CachedTable

Neighbourhood.CachedTable(ReadyDirectory rD,
                          Database d)
                    throws IOException

Throws:

IOException

Method Detail

addVoter

void addVoter(ListNode node)
        throws SQLException

Adds a voter to the table, updating the counts for the voter's neighbourhood, and its ancestors in the tree.

Throws:

SQLException

get

Neighbourhood get(String path,
                  boolean isLeaf)
            throws SQLException

Description copied from class: Neighbourhood.Table

Retrieves a neighbourhood from this table.

Overrides:

get in class Neighbourhood.Table

Returns:

neighbourhood as stored in the table; or null, if none is stored

Throws:

SQLException

getOrCreate

Neighbourhood getOrCreate(String path,
                          boolean isLeaf)
                    throws SQLException

Description copied from class: Neighbourhood.Table

Retrieves a neighbourhood from this table; or, if none is stored, a default neighbourhood.

Overrides:

getOrCreate in class Neighbourhood.Table

Returns:

Neighbourhood as stored in the table; or, if none is stored, a NeighbourhoodIC with default values

Throws:

SQLException

commitAll

public void commitAll()
               throws SQLException

Description copied from interface: CacheControlledTable

Writes all rows that have uncommitted changes. Does not remove any row from the cache.

Specified by:

commitAll in interface CacheControlledTable

Throws:

SQLException

skimFlush

public void skimFlush()
               throws SQLException

Description copied from interface: CacheControlledTable

Commits and removes rows from the cache, reducing it to its skimmed (normal) size. If you are holding any row references of your own, you should ideally drop them; their data is apt to become stale if subsequently changed.

Specified by:

skimFlush in interface CacheControlledTable

Throws:

SQLException