Package org.apache.derby.iapi.services.cache

Examples of org.apache.derby.iapi.services.cache.Cacheable


          {
           
            Object[] removeInfo = (Object[]) droppedTableStubInfo.get(logInstant);
            Object identity = removeInfo[1];
            //delete the entry in the container cache.
            Cacheable ccentry =  containerCache.findCached(identity);
            if(ccentry!=null)
              containerCache.remove(ccentry);
            //delete the stub we don't require it during recovery
                        synchronized( this)
                        {
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   */
  private void removePermEntryInCache(PermissionsDescriptor perm)
    throws StandardException
  {
    // Remove cached permissions entry if present
    Cacheable cacheEntry = getPermissionsCache().findCached( perm);
    if (cacheEntry != null)
      getPermissionsCache().remove(cacheEntry);
  }
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  }

    private Object getPermissions( PermissionsDescriptor key) throws StandardException
    {
        // RESOLVE get a READ COMMITTED (shared) lock on the permission row
        Cacheable entry = getPermissionsCache().find( key);
        if( entry == null)
            return null;
        Object perms = entry.getIdentity();
        getPermissionsCache().release( entry);
        return perms;
    }
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            Object[] removeInfo =
                            (Object[]) droppedTableStubInfo.get(logInstant);
            Object identity = removeInfo[1];
            //delete the entry in the container cache.
            Cacheable ccentry =  containerCache.findCached(identity);
            if(ccentry!=null)
              containerCache.remove(ccentry);

            //delete the stub we don't require it during recovery
                        synchronized( this)
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            getLanguageConnectionFactory().getStatementCache();

    if (statementCache == null)
      return;
        Cacheable cachedItem = statementCache.findCached(statement);
        // No need to do anything if the statement is already removed
        if (cachedItem != null) {
            CachedStatement cs = (CachedStatement) cachedItem;
            if (statement.getPreparedStatement() != cs.getPreparedStatement()) {
                // DERBY-3786: Someone else has removed the statement from
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    // statement caching disable when in DDL mode
    if (dataDictionaryInWriteMode()) {
      return null;
    }

    Cacheable cachedItem = statementCache.find(statement);

    CachedStatement cs = (CachedStatement) cachedItem;


    GenericPreparedStatement ps = cs.getPreparedStatement();
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   */
  private void removePermEntryInCache(PermissionsDescriptor perm)
    throws StandardException
  {
    // Remove cached permissions entry if present
    Cacheable cacheEntry = getPermissionsCache().findCached( perm);
    if (cacheEntry != null)
      getPermissionsCache().remove(cacheEntry);
  }
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  }

    private Object getPermissions( PermissionsDescriptor key) throws StandardException
    {
        // RESOLVE get a READ COMMITTED (shared) lock on the permission row
        Cacheable entry = getPermissionsCache().find( key);
        if( entry == null)
            return null;
        Object perms = entry.getIdentity();
        getPermissionsCache().release( entry);
        return perms;
    }
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  public Cacheable createIdentity(Object key, Object createParameter) throws StandardException {

    ContainerKey newIdentity = (ContainerKey) key;

    if (newIdentity.getSegmentId() != ContainerHandle.TEMPORARY_SEGMENT) {
      Cacheable realContainer = dataFactory.newContainerObject();
      return realContainer.createIdentity(newIdentity, createParameter);
    }

    return createIdent(newIdentity, createParameter);
  }
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  public Cacheable takeOnIdentity(CacheManager cm, CacheableFactory holderFactory,
    Object key, boolean forCreate, Object createParameter)
    throws StandardException {

    // tell the object it needs to create itself
    Cacheable oldEntry = entry;
    if (oldEntry == null)
      oldEntry = holderFactory.newCacheable(cm);

    if (forCreate) {
      entry = oldEntry.createIdentity(key, createParameter);
    } else {
      entry = oldEntry.setIdentity(key);
    }

    if (entry != null) {
      // item was found or created
      if (SanityManager.DEBUG) {
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