程序包 org.apache.seatunnel.connectors.seatunnel.jdbc.source

类 ChunkSplitter

java.lang.Object

org.apache.seatunnel.connectors.seatunnel.jdbc.source.ChunkSplitter

所有已实现的接口:

Serializable, AutoCloseable

直接已知子类:

DynamicChunkSplitter, FixedChunkSplitter

public abstract class ChunkSplitter
extends Object
implements AutoCloseable, Serializable

另请参阅:

序列化表格

字段概要

字段

修饰符和类型	字段	说明
protected JdbcSourceConfig	config
protected JdbcConnectionProvider	connectionProvider
protected JdbcDialect	jdbcDialect

构造器概要

构造器

构造器	说明
ChunkSplitter(JdbcSourceConfig config)

方法概要

修饰符和类型	方法	说明
void	close()
static ChunkSplitter	create(JdbcSourceConfig config)
protected PreparedStatement	createPreparedStatement(String sql)
protected JdbcSourceSplit	createSingleSplit(JdbcSourceTable table)
protected PreparedStatement	createSingleSplitStatement(JdbcSourceSplit split)
protected String	createSplitId(org.apache.seatunnel.api.table.catalog.TablePath tablePath, int index)
protected abstract Collection<JdbcSourceSplit>	createSplits(JdbcSourceTable table, org.apache.seatunnel.api.table.type.SeaTunnelRowType splitKeyType)
protected abstract PreparedStatement	createSplitStatement(JdbcSourceSplit split, org.apache.seatunnel.api.table.catalog.TableSchema schema)
protected Optional<org.apache.seatunnel.api.table.type.SeaTunnelRowType>	findSplitKey(JdbcSourceTable table)
Collection<JdbcSourceSplit>	generateSplits(JdbcSourceTable table)
PreparedStatement	generateSplitStatement(JdbcSourceSplit split, org.apache.seatunnel.api.table.catalog.TableSchema schema)
protected Connection	getOrEstablishConnection()
protected boolean	isSupportSplitColumn(org.apache.seatunnel.api.table.catalog.Column splitColumn)
protected Object	queryMin(JdbcSourceTable table, String columnName, Object excludedLowerBound)
protected org.apache.commons.lang3.tuple.Pair<Object,Object>	queryMinMax(JdbcSourceTable table, String columnName)

从类继承的方法 java.lang.Object

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

字段详细资料

config

protected JdbcSourceConfig config

connectionProvider

protected final JdbcConnectionProvider connectionProvider

jdbcDialect

protected final JdbcDialect jdbcDialect

构造器详细资料

ChunkSplitter

public ChunkSplitter(JdbcSourceConfig config)

方法详细资料

create

public static ChunkSplitter create(JdbcSourceConfig config)

close

public void close()

指定者:

close 在接口中 AutoCloseable

generateSplits

public Collection<JdbcSourceSplit> generateSplits(JdbcSourceTable table)
                                           throws Exception

抛出:

Exception

createSplits

protected abstract Collection<JdbcSourceSplit> createSplits(JdbcSourceTable table,
                                                            org.apache.seatunnel.api.table.type.SeaTunnelRowType splitKeyType)
                                                     throws SQLException,
                                                            Exception

抛出:

SQLException

Exception

generateSplitStatement

public PreparedStatement generateSplitStatement(JdbcSourceSplit split,
                                                org.apache.seatunnel.api.table.catalog.TableSchema schema)
                                         throws SQLException

抛出:

SQLException

createSplitStatement

protected abstract PreparedStatement createSplitStatement(JdbcSourceSplit split,
                                                          org.apache.seatunnel.api.table.catalog.TableSchema schema)
                                                   throws SQLException

抛出:

SQLException

createPreparedStatement

protected PreparedStatement createPreparedStatement(String sql)
                                             throws SQLException

抛出:

SQLException

getOrEstablishConnection

protected Connection getOrEstablishConnection()
                                       throws SQLException

抛出:

SQLException

createSingleSplit

protected JdbcSourceSplit createSingleSplit(JdbcSourceTable table)

createSingleSplitStatement

protected PreparedStatement createSingleSplitStatement(JdbcSourceSplit split)
                                                throws SQLException

抛出:

SQLException

queryMin

protected Object queryMin(JdbcSourceTable table,
                          String columnName,
                          Object excludedLowerBound)
                   throws SQLException

抛出:

SQLException

queryMinMax

protected org.apache.commons.lang3.tuple.Pair<Object,Object> queryMinMax(JdbcSourceTable table,
                                                                               String columnName)
                                                                        throws SQLException

抛出:

SQLException

findSplitKey

protected Optional<org.apache.seatunnel.api.table.type.SeaTunnelRowType> findSplitKey(JdbcSourceTable table)

isSupportSplitColumn

protected boolean isSupportSplitColumn(org.apache.seatunnel.api.table.catalog.Column splitColumn)

createSplitId

protected String createSplitId(org.apache.seatunnel.api.table.catalog.TablePath tablePath,
                               int index)