/*
* HA-JDBC: High-Availability JDBC
* Copyright (C) 2012 Paul Ferraro
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.hajdbc;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ThreadFactory;
import net.sf.hajdbc.balancer.Balancer;
import net.sf.hajdbc.cache.DatabaseMetaDataCache;
import net.sf.hajdbc.codec.Decoder;
import net.sf.hajdbc.dialect.Dialect;
import net.sf.hajdbc.durability.Durability;
import net.sf.hajdbc.io.InputSinkStrategy;
import net.sf.hajdbc.lock.LockManager;
import net.sf.hajdbc.state.StateManager;
import net.sf.hajdbc.tx.TransactionIdentifierFactory;
/**
* @author Paul Ferraro
* @param <Z> either java.sql.Driver or javax.sql.DataSource
* @param <D> database implementation
*/
public interface DatabaseCluster<Z, D extends Database<Z>> extends Lifecycle
{
/**
* Returns the identifier of this cluster.
* @return an identifier
*/
String getId();
/**
* Activates the specified database
* @param database a database descriptor
* @param manager a state manager
* @return true, if the database was activated, false it was already active
*/
boolean activate(D database, StateManager manager);
/**
* Deactivates the specified database
* @param database a database descriptor
* @param manager a state manager
* @return true, if the database was deactivated, false it was already inactive
*/
boolean deactivate(D database, StateManager manager);
/**
* Returns the database identified by the specified id
* @param id a database identifier
* @return a database descriptor
* @throws IllegalArgumentException if no database exists with the specified identifier
*/
D getDatabase(String id);
/**
* Returns the Balancer implementation used by this database cluster.
* @return an implementation of <code>Balancer</code>
*/
Balancer<Z, D> getBalancer();
TransactionMode getTransactionMode();
ExecutorService getExecutor();
/**
* Returns a dialect capable of returning database vendor specific values.
* @return an implementation of <code>Dialect</code>
*/
Dialect getDialect();
/**
* Returns a LockManager capable of acquiring named read/write locks on the specific objects in this database cluster.
* @return a LockManager implementation
*/
LockManager getLockManager();
/**
* Returns a StateManager for persisting database cluster state.
* @return a StateManager implementation
*/
StateManager getStateManager();
/**
* Returns a DatabaseMetaData cache.
* @return a <code>DatabaseMetaDataCache</code> implementation
*/
DatabaseMetaDataCache<Z, D> getDatabaseMetaDataCache();
/**
* Indicates whether or not sequence detection is enabled for this cluster.
* @return true, if sequence detection is enabled, false otherwise.
*/
boolean isSequenceDetectionEnabled();
/**
* Indicates whether or not identity column detection is enabled for this cluster.
* @return true, if identity column detection is enabled, false otherwise.
*/
boolean isIdentityColumnDetectionEnabled();
/**
* Indicates whether or not non-deterministic CURRENT_DATE SQL functions will be evaluated to deterministic static values.
* @return true, if temporal SQL replacement is enabled, false otherwise.
*/
boolean isCurrentDateEvaluationEnabled();
/**
* Indicates whether or not non-deterministic CURRENT_TIME functions will be evaluated to deterministic static values.
* @return true, if temporal SQL replacement is enabled, false otherwise.
*/
boolean isCurrentTimeEvaluationEnabled();
/**
* Indicates whether or not non-deterministic CURRENT_TIMESTAMP functions will be evaluated to deterministic static values.
* @return true, if temporal SQL replacement is enabled, false otherwise.
*/
boolean isCurrentTimestampEvaluationEnabled();
/**
* Indicates whether or not non-deterministic RAND() functions will be replaced by evaluated to static values.
* @return true, if temporal SQL replacement is enabled, false otherwise.
*/
boolean isRandEvaluationEnabled();
/**
* Indicates whether or not this cluster is active, i.e. started, but not yet stopped.
* @return true, if this cluster is active, false otherwise.
*/
boolean isActive();
void addListener(DatabaseClusterListener listener);
void removeListener(DatabaseClusterListener listener);
void addSynchronizationListener(SynchronizationListener listener);
void removeSynchronizationListener(SynchronizationListener listener);
void addConfigurationListener(DatabaseClusterConfigurationListener<Z, D> listener);
void removeConfigurationListener(DatabaseClusterConfigurationListener<Z, D> listener);
Durability<Z, D> getDurability();
ThreadFactory getThreadFactory();
Decoder getDecoder();
TransactionIdentifierFactory<? extends Object> getTransactionIdentifierFactory();
InputSinkStrategy<? extends Object> getInputSinkStrategy();
}