State.java revision a069e2643d6be5b34309179220b2777d42df13fc
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at legal-notices/CDDLv1_0.txt.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2006-2008 Sun Microsystems, Inc.
* Portions copyright 2011-2015 ForgeRock AS
*/
/**
* This class is responsible for storing the configuration state of
* the backend for a particular suffix.
*/
class State extends AbstractTree
{
/**
* Use COMPACTED serialization for new indexes.
* @see {@link EntryIDSet.EntryIDSetCompactCodec}
*/
private static final Collection<IndexFlag> DEFAULT_FLAGS = Collections.unmodifiableCollection(Arrays
/**
* Bit-field containing possible flags that an index can have
* When adding flags, ensure that its value fits on a single bit.
*/
static enum IndexFlag
{
TRUSTED(0x01),
/** Use compact encoding for indexes' ID storage. */
COMPACTED(0x02);
final byte mask;
}
}
/**
* Create a new State object.
*
* @param name The name of the entry tree.
*/
{
super(name);
}
{
}
/**
* Fetch index flags from the tree.
* @param txn The transaction or null if none.
* @param indexTreeName The tree's name of the index
* @return The flags of the index in the tree or an empty set if no index has no flags.
* @throws NullPointerException if tnx or index is null
* @throws StorageRuntimeException If an error occurs in the storage.
*/
EnumSet<IndexFlag> getIndexFlags(ReadableTransaction txn, TreeName indexTreeName) throws StorageRuntimeException {
return decodeFlagsOrGetDefault(value);
}
/**
* Ensure that the specified flags are set for the given index
* @param txn a non null transaction
* @param indexTreeName The index storing the trusted state info.
* @param flags The flags to add to the provided index
* @return true if the flags have been updated
* @throws NullPointerException if txn, index or flags is null
* @throws StorageRuntimeException If an error occurs in the storage.
*/
{
{
{
return encodeFlags(currentFlags);
}
});
}
}
{
{
}
}
return indexState;
}
byte value = 0;
}
}
/**
* Ensure that the specified flags are not set for the given index
* @param txn a non null transaction
* @param indexTreeName The index storing the trusted state info.
* @param flags The flags to remove from the provided index
* @throws NullPointerException if txn, index or flags is null
* @throws StorageRuntimeException If an error occurs in the storage.
*/
void removeFlagsFromIndex(WriteableTransaction txn, TreeName indexTreeName, final IndexFlag... flags) {
{
{
return encodeFlags(currentFlags);
}
});
}
/**
* Remove a record from the entry tree.
*
* @param txn a non null transaction
* @param indexTreeName The index storing the trusted state info.
* @return true if the entry was removed, false if it was not.
* @throws NullPointerException if txn, index is null
* @throws StorageRuntimeException If an error occurs in the storage.
*/
boolean deleteRecord(WriteableTransaction txn, TreeName indexTreeName) throws StorageRuntimeException
{
}
}