org.apache.shardingsphere.data.pipeline.spi.sqlbuilder

Interface PipelineSQLBuilder

All Superinterfaces:

org.apache.shardingsphere.spi.singleton.SingletonSPI, org.apache.shardingsphere.spi.typed.TypedSPI

public interface PipelineSQLBuilder
extends org.apache.shardingsphere.spi.typed.TypedSPI, org.apache.shardingsphere.spi.singleton.SingletonSPI

Pipeline SQL builder. It's singleton when it's used as SPI, else not.

Method Summary

Modifier and Type	Method and Description
String	buildCheckEmptySQL(String tableName) Build check empty SQL.
String	buildChunkedQuerySQL(String tableName, String uniqueKey, Number startUniqueValue) Build query SQL.
String	buildCountSQL(String tableName) Build count SQL.
String	buildDeleteSQL(DataRecord dataRecord, Collection<Column> conditionColumns) Build delete SQL.
String	buildInsertSQL(DataRecord dataRecord) Build insert SQL.
String	buildSplitByPrimaryKeyRangeSQL(String tableName, String primaryKey) Build split by primary key range SQL.
String	buildTruncateSQL(String tableName) Build truncate SQL.
String	buildUpdateSQL(DataRecord dataRecord, Collection<Column> conditionColumns) Build update SQL.
List<Column>	extractUpdatedColumns(Collection<Column> columns, DataRecord record) Extract updated columns.

Methods inherited from interface org.apache.shardingsphere.spi.typed.TypedSPI

getProps, getType, getTypeAliases, setProps

Method Detail

buildInsertSQL

String buildInsertSQL(DataRecord dataRecord)

Build insert SQL. Used in Importer.

Parameters:

dataRecord - data record

Returns:

insert SQL

buildUpdateSQL

String buildUpdateSQL(DataRecord dataRecord,
                      Collection<Column> conditionColumns)

Build update SQL.

Parameters:

dataRecord - data record

conditionColumns - condition columns

Returns:

update SQL

extractUpdatedColumns

List<Column> extractUpdatedColumns(Collection<Column> columns,
                                   DataRecord record)

Extract updated columns. Used in Importer.

Parameters:

columns - columns

record - data record

Returns:

filtered columns

buildDeleteSQL

String buildDeleteSQL(DataRecord dataRecord,
                      Collection<Column> conditionColumns)

Build delete SQL.

Parameters:

dataRecord - data record

conditionColumns - condition columns

Returns:

delete SQL

buildTruncateSQL

String buildTruncateSQL(String tableName)

Build truncate SQL.

Parameters:

tableName - table name

Returns:

truncate SQL

buildCountSQL

String buildCountSQL(String tableName)

Build count SQL.

Parameters:

tableName - table name

Returns:

count SQL

buildChunkedQuerySQL

String buildChunkedQuerySQL(String tableName,
                            String uniqueKey,
                            Number startUniqueValue)

Build query SQL.

Parameters:

tableName - table name

uniqueKey - unique key, it may be primary key, not null

startUniqueValue - start unique value, not null

Returns:

query SQL

buildCheckEmptySQL

String buildCheckEmptySQL(String tableName)

Build check empty SQL.

Parameters:

tableName - table name

Returns:

check SQL

buildSplitByPrimaryKeyRangeSQL

String buildSplitByPrimaryKeyRangeSQL(String tableName,
                                      String primaryKey)

Build split by primary key range SQL.

Parameters:

tableName - table name

primaryKey - primary key

Returns:

split SQL