org.apache.seatunnel.connectors.seatunnel.cdc.mysql.source.eumerator

类 MySqlChunkSplitter

java.lang.Object

org.apache.seatunnel.connectors.cdc.base.source.enumerator.splitter.AbstractJdbcSourceChunkSplitter

org.apache.seatunnel.connectors.seatunnel.cdc.mysql.source.eumerator.MySqlChunkSplitter

所有已实现的接口:

ChunkSplitter, JdbcSourceChunkSplitter

public class MySqlChunkSplitter
extends AbstractJdbcSourceChunkSplitter

The ChunkSplitter used to split table into a set of chunks for JDBC data source.

构造器概要

构造器

构造器和说明
MySqlChunkSplitter(JdbcSourceConfig sourceConfig, JdbcDataSourceDialect dialect)

方法概要

限定符和类型	方法和说明
String	buildSplitScanQuery(TableId tableId, SeaTunnelRowType splitKeyType, boolean isFirstSplit, boolean isLastSplit)
SeaTunnelDataType<?>	fromDbzColumn(Column splitColumn)
Long	queryApproximateRowCnt(io.debezium.jdbc.JdbcConnection jdbc, TableId tableId)
Object	queryMin(io.debezium.jdbc.JdbcConnection jdbc, TableId tableId, String columnName, Object excludedLowerBound)
Object[]	queryMinMax(io.debezium.jdbc.JdbcConnection jdbc, TableId tableId, String columnName)
Object	queryNextChunkMax(io.debezium.jdbc.JdbcConnection jdbc, TableId tableId, String columnName, int chunkSize, Object includedLowerBound)
Object[]	sampleDataFromColumn(io.debezium.jdbc.JdbcConnection jdbc, TableId tableId, String columnName, int inverseSamplingRate)

从类继承的方法 org.apache.seatunnel.connectors.cdc.base.source.enumerator.splitter.AbstractJdbcSourceChunkSplitter

calculateDistributionFactor, createSnapshotSplit, efficientShardingThroughSampling, generateSplits, getSplitColumn, nextChunkEnd, ObjectCompare, splitEvenlySizedChunks, splitId, splitUnevenlySizedChunks

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.seatunnel.connectors.cdc.base.source.enumerator.splitter.JdbcSourceChunkSplitter

getSplitType, isEvenlySplitColumn

构造器详细资料

MySqlChunkSplitter

public MySqlChunkSplitter(JdbcSourceConfig sourceConfig,
                          JdbcDataSourceDialect dialect)

方法详细资料

queryMinMax

public Object[] queryMinMax(io.debezium.jdbc.JdbcConnection jdbc,
                            TableId tableId,
                            String columnName)
                     throws SQLException

抛出:

SQLException

queryMin

public Object queryMin(io.debezium.jdbc.JdbcConnection jdbc,
                       TableId tableId,
                       String columnName,
                       Object excludedLowerBound)
                throws SQLException

抛出:

SQLException

sampleDataFromColumn

public Object[] sampleDataFromColumn(io.debezium.jdbc.JdbcConnection jdbc,
                                     TableId tableId,
                                     String columnName,
                                     int inverseSamplingRate)
                              throws SQLException

抛出:

SQLException

queryNextChunkMax

public Object queryNextChunkMax(io.debezium.jdbc.JdbcConnection jdbc,
                                TableId tableId,
                                String columnName,
                                int chunkSize,
                                Object includedLowerBound)
                         throws SQLException

抛出:

SQLException

queryApproximateRowCnt

public Long queryApproximateRowCnt(io.debezium.jdbc.JdbcConnection jdbc,
                                   TableId tableId)
                            throws SQLException

抛出:

SQLException

buildSplitScanQuery

public String buildSplitScanQuery(TableId tableId,
                                  SeaTunnelRowType splitKeyType,
                                  boolean isFirstSplit,
                                  boolean isLastSplit)

fromDbzColumn

public SeaTunnelDataType<?> fromDbzColumn(Column splitColumn)