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

类 DynamicChunkSplitter

java.lang.Object

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

org.apache.seatunnel.connectors.seatunnel.jdbc.source.DynamicChunkSplitter

所有已实现的接口:

Serializable, AutoCloseable

public class DynamicChunkSplitter
extends ChunkSplitter

另请参阅:

序列化表格

嵌套类概要

嵌套类

修饰符和类型	类	说明
static class	DynamicChunkSplitter.ChunkRange

字段概要

从类继承的字段 org.apache.seatunnel.connectors.seatunnel.jdbc.source.ChunkSplitter

config, connectionProvider, jdbcDialect

构造器概要

构造器

构造器	说明
DynamicChunkSplitter(JdbcSourceConfig config)

方法概要

修饰符和类型	方法	说明
protected Collection<JdbcSourceSplit>	createSplits(JdbcSourceTable table, org.apache.seatunnel.api.table.type.SeaTunnelRowType splitKey)
protected PreparedStatement	createSplitStatement(JdbcSourceSplit split, org.apache.seatunnel.api.table.catalog.TableSchema schema)
static List<DynamicChunkSplitter.ChunkRange>	efficientShardingThroughSampling(org.apache.seatunnel.api.table.catalog.TablePath tablePath, Object[] sampleData, long approximateRowCnt, int shardCount)

从类继承的方法 org.apache.seatunnel.connectors.seatunnel.jdbc.source.ChunkSplitter

close, create, createPreparedStatement, createSingleSplit, createSingleSplitStatement, createSplitId, findSplitKey, generateSplits, generateSplitStatement, getOrEstablishConnection, isSupportSplitColumn, queryMin, queryMinMax

从类继承的方法 java.lang.Object

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

构造器详细资料

DynamicChunkSplitter

public DynamicChunkSplitter(JdbcSourceConfig config)

方法详细资料

createSplits

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

指定者:

createSplits 在类中 ChunkSplitter

抛出:

Exception

createSplitStatement

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

指定者:

createSplitStatement 在类中 ChunkSplitter

抛出:

SQLException

efficientShardingThroughSampling

public static List<DynamicChunkSplitter.ChunkRange> efficientShardingThroughSampling(org.apache.seatunnel.api.table.catalog.TablePath tablePath,
                                                                                     Object[] sampleData,
                                                                                     long approximateRowCnt,
                                                                                     int shardCount)