public class DB2Engine extends AbstractDatabaseEngine
conn, currentSchema, DEFAULT_QUERY_EXCEPTION_HANDLER, dev, dialect, eh, entities, injector, logger, notificationLogger, properties, socketTimeoutExecutor, stmts, translator| Constructor and Description |
|---|
DB2Engine(PdbProperties properties)
Creates a new DB2 connection.
|
| Modifier and Type | Method and Description |
|---|---|
protected void |
addColumn(DbEntity entity,
DbColumn... columns)
Adds the column to an existent table.
|
protected void |
addFks(DbEntity entity,
Set<DbFk> fks)
Adds foreign key constraints to the table in the database that the provided entity represents.
|
protected void |
addIndexes(DbEntity entity)
Add the desired indexes.
|
protected void |
addPrimaryKey(DbEntity entity)
Add a primary key to the entity.
|
protected void |
addSequences(DbEntity entity)
Adds the necessary sequences.
|
protected boolean |
checkConnection(Connection conn)
Checks if the connection is alive.
|
protected MappedEntity |
createPreparedStatementForInserts(DbEntity entity)
Creates and gets the prepared statement that will be used for insertions.
|
protected ResultIterator |
createResultIterator(PreparedStatement ps)
Creates a specific
ResultIterator for the engine in place given a prepared statement. |
protected ResultIterator |
createResultIterator(Statement statement,
String sql)
Creates a specific
ResultIterator given the engine implementation. |
protected void |
createTable(DbEntity entity)
Creates the table.
|
protected long |
doPersist(PreparedStatement ps,
MappedEntity me,
boolean useAutoInc,
int lastBindPosition)
DB engine specific auxiliary method for
AbstractDatabaseEngine.persist(String, EntityEntry, boolean) to effectively perform
the persist action. |
protected void |
dropColumn(DbEntity entity,
String... columns)
Drops the column.
|
protected void |
dropSequences(DbEntity entity)
Drops the sequences of the entity.
|
protected void |
dropTable(DbEntity entity)
Drops the table.
|
int |
executeUpdate(String query)
Executes a native query.
|
Map<String,DbColumnType> |
getMetadata(String schemaPattern,
String tableNamePattern)
Gets the table metadata (table must be in the current schema).
|
String |
getSchema()
Gets the schema being used in the current
connection. |
Class<? extends AbstractTranslator> |
getTranslatorClass()
Gets the class that translates SQL bound to this engine.
|
boolean |
isStringAggDistinctCapable()
Checks if the engine supports using DISTINCT inside a string aggregation.
|
void |
setParameter(String name,
int index,
Object param)
Sets the parameter on the specified index.
|
void |
setParameters(String name,
Object... params)
Sets the parameters on the specified prepared statement.
|
protected void |
setPreparedStatementValue(PreparedStatement ps,
int index,
DbColumn dbColumn,
Object value,
boolean fromBatch)
Sets a value in the prepared statement.
|
protected void |
setSchema(String schema)
Sets the schema for the current
connection. |
void |
updateEntity(DbEntity entity)
Updates an entity in the engine.
|
addBatch, addEntity, addFks, beginTransaction, checkConnection, checkConnection, clearParameters, close, commentCharacter, commit, connect, containsEntity, createBatch, createBatch, createBatch, createBatch, createBatch, createBatch, createPreparedStatement, createPreparedStatement, createPreparedStatement, createPreparedStatement, createSelectStatement, dropEntity, dropEntity, dropFkQuery, dropFks, dropFks, dropView, duplicate, entityToPreparedStatement, entityToPreparedStatementForBatch, entityToPreparedStatementInternal, escapeCharacter, executePS, executePSUpdate, executeUpdate, executeUpdateSilently, flush, getConnection, getDBProperties, getDialect, getEntities, getEntities, getFinalJdbcConnection, getImportedKeys, getMetadata, getPreparedStatementForPersist, getPrivateKey, getProperties, getPSIterator, getPSIterator, getPSResultSet, getQueryExceptionHandler, getQueryMetadata, getQueryMetadata, handleOperation, hasIdentityColumn, inject, isTransactionActive, iterator, iterator, iterator, iterator, iterator, iterator, loadEntity, objectToArray, onConnectionCreated, persist, persist, preparedStatementExists, processResultIterator, query, query, query, query, reconnectExceptionally, removeEntity, removePreparedStatement, rollback, setExceptionHandler, setParameter, setParameterValues, setTransactionIsolation, toPdbType, translate, translateTypepublic DB2Engine(PdbProperties properties) throws DatabaseEngineException
properties - The properties for the database connection.DatabaseEngineException - When the connection fails.public Class<? extends AbstractTranslator> getTranslatorClass()
AbstractDatabaseEnginegetTranslatorClass in class AbstractDatabaseEngineprotected void setPreparedStatementValue(PreparedStatement ps, int index, DbColumn dbColumn, Object value, boolean fromBatch) throws Exception
AbstractDatabaseEnginesetPreparedStatementValue in class AbstractDatabaseEngineps - The prepared statement.index - The index of the value to set in the prepared statement.dbColumn - The DbColumn for which to set the value in the prepared statement.value - The value to set.fromBatch - Whether this translation is to be done in the context of a batch update.Exception - If something wrong occurs setting the value.protected void createTable(DbEntity entity) throws DatabaseEngineException
AbstractDatabaseEnginecreateTable in class AbstractDatabaseEngineentity - The entity.DatabaseEngineException - If something goes wrong while creating the table.protected void addPrimaryKey(DbEntity entity) throws DatabaseEngineException
AbstractDatabaseEngineaddPrimaryKey in class AbstractDatabaseEngineentity - The entity.DatabaseEngineException - If something goes wrong while creating the table.protected void addIndexes(DbEntity entity) throws DatabaseEngineException
AbstractDatabaseEngineaddIndexes in class AbstractDatabaseEngineentity - The entity.DatabaseEngineException - If something goes wrong while creating the table.protected void addSequences(DbEntity entity) throws DatabaseEngineException
AbstractDatabaseEngineaddSequences in class AbstractDatabaseEngineentity - The entity.DatabaseEngineException - If something goes wrong while creating the table.public int executeUpdate(String query) throws DatabaseEngineException
AbstractDatabaseEngineexecuteUpdate in interface DatabaseEngineexecuteUpdate in class AbstractDatabaseEnginequery - The query to execute.DatabaseEngineException - If something goes wrong executing the native query.protected MappedEntity createPreparedStatementForInserts(DbEntity entity) throws DatabaseEngineException
AbstractDatabaseEnginecreatePreparedStatementForInserts in class AbstractDatabaseEngineentity - The entity.DatabaseEngineException - If something goes wrong while creating the table.protected void dropSequences(DbEntity entity) throws DatabaseEngineException
AbstractDatabaseEnginedropSequences in class AbstractDatabaseEngineentity - The entity.DatabaseEngineException - If something goes wrong dropping the sequences.protected void dropTable(DbEntity entity) throws DatabaseEngineException
AbstractDatabaseEnginedropTable in class AbstractDatabaseEngineentity - The entity.DatabaseEngineException - If something goes wrong dropping the sequences.protected void dropColumn(DbEntity entity, String... columns) throws DatabaseEngineException
AbstractDatabaseEnginedropColumn in class AbstractDatabaseEngineentity - The entity.columns - The column name to drop.DatabaseEngineException - If something goes wrong dropping the sequences.public void updateEntity(DbEntity entity) throws DatabaseEngineException
AbstractDatabaseEngine
If the entity does not exist in the instance, the method AbstractDatabaseEngine.addEntity(DbEntity) will be invoked.
The engine will compare the entity with the AbstractDatabaseEngine.getMetadata(String) information and update the schema of the table.
ATTENTION: This method will only add new columns or drop removed columns in the database table. It will also drop and create foreign keys. Primary Keys, Indexes and column types changes will not be updated.
updateEntity in interface DatabaseEngineupdateEntity in class AbstractDatabaseEngineentity - The entity to update.DatabaseEngineException - If something goes wrong while updating the entity.protected void addColumn(DbEntity entity, DbColumn... columns) throws DatabaseEngineException
AbstractDatabaseEngineaddColumn in class AbstractDatabaseEngineentity - The entity that represents the table.columns - The db column to add.DatabaseEngineException - If something goes wrong adding columns.protected long doPersist(PreparedStatement ps, MappedEntity me, boolean useAutoInc, int lastBindPosition) throws Exception
AbstractDatabaseEngineAbstractDatabaseEngine.persist(String, EntityEntry, boolean) to effectively perform
the persist action.doPersist in class AbstractDatabaseEngineps - The PreparedStatement to use in the persist operationme - The mapped entity on which to persist.useAutoInc - Whether to use autoInc.lastBindPosition - The position (1-based) of the last bind parameter that was filled in the prepared statement.0 if there's no auto generated value). If the table has more
than 1 column with auto generated values, then it will return the first column found.Exception - if any problem occurs while persisting.protected void addFks(DbEntity entity, Set<DbFk> fks) throws DatabaseEngineException
AbstractDatabaseEngineaddFks in class AbstractDatabaseEngineentity - The entity.fks - The foreign keys to be added.DatabaseEngineException - If something goes wrong creating the FKs.protected boolean checkConnection(Connection conn)
AbstractDatabaseEnginecheckConnection in class AbstractDatabaseEngineconn - The connection to test.protected ResultIterator createResultIterator(Statement statement, String sql) throws DatabaseEngineException
AbstractDatabaseEngineResultIterator given the engine implementation.createResultIterator in class AbstractDatabaseEnginestatement - The statement.sql - The SQL sentence.DatabaseEngineException - If a database access error occurs.public String getSchema() throws DatabaseEngineException
AbstractDatabaseEngineconnection.getSchema in class AbstractDatabaseEnginenull if there is none.DatabaseEngineException - If a database access error occurs or this method is called on a closed connection.protected void setSchema(String schema) throws DatabaseEngineException
AbstractDatabaseEngineconnection.setSchema in class AbstractDatabaseEngineDatabaseEngineException - If schema doesn't exist, a database access error occurs or this method
is called on a closed connection.public Map<String,DbColumnType> getMetadata(String schemaPattern, String tableNamePattern) throws DatabaseEngineException
DatabaseEnginegetMetadata in interface DatabaseEnginegetMetadata in class AbstractDatabaseEngineschemaPattern - A schema name pattern; must match the schema name as it is stored in the database;
"" retrieves those without a schema; null means that the schema name
should not be used to narrow the search.tableNamePattern - A table name pattern; must match the table name as it is stored in the database.DatabaseEngineException - If something occurs getting the metadata.public void setParameters(String name, Object... params) throws DatabaseEngineException, ConnectionResetException
DatabaseEnginesetParameters in interface DatabaseEnginesetParameters in class AbstractDatabaseEnginename - The prepared statement name.params - The parameters to set.DatabaseEngineException - If something occurs setting the parameters.ConnectionResetException - If the connection was reset while trying to set parameters.public void setParameter(String name, int index, Object param) throws DatabaseEngineException, ConnectionResetException
DatabaseEnginesetParameter in interface DatabaseEnginesetParameter in class AbstractDatabaseEnginename - The prepared statement name.index - The index to set.param - The parameter to set.DatabaseEngineException - If something occurs setting the parameters.ConnectionResetException - If the connection was reset while trying to set the parameter.public boolean isStringAggDistinctCapable()
DatabaseEngineprotected ResultIterator createResultIterator(PreparedStatement ps) throws DatabaseEngineException
AbstractDatabaseEngineResultIterator for the engine in place given a prepared statement.createResultIterator in class AbstractDatabaseEngineps - The prepared statement.DatabaseEngineException - If a database access error occurs.Copyright © 2023 Feedzai. All rights reserved.