程序包 org.apache.seatunnel.connectors.seatunnel.jdbc.internal.dialect.xugu

类 XuguDialect

java.lang.Object

org.apache.seatunnel.connectors.seatunnel.jdbc.internal.dialect.xugu.XuguDialect

所有已实现的接口:

Serializable, JdbcDialect

public class XuguDialect
extends Object
implements JdbcDialect

另请参阅:

序列化表格

嵌套类概要

从接口继承的嵌套类/接口 org.apache.seatunnel.connectors.seatunnel.jdbc.internal.dialect.JdbcDialect

JdbcDialect.AlterType

字段概要

字段

修饰符和类型	字段	说明
String	fieldIde

从接口继承的字段 org.apache.seatunnel.connectors.seatunnel.jdbc.internal.dialect.JdbcDialect

log

构造器概要

构造器

构造器	说明
XuguDialect()
XuguDialect(String fieldIde)

方法概要

修饰符和类型	方法	说明
PreparedStatement	creatPreparedStatement(Connection connection, String queryTemplate, int fetchSize)	Different dialects optimize their PreparedStatement
String	dialectName()	Get the name of jdbc dialect.
String	extractTableName(org.apache.seatunnel.api.table.catalog.TablePath tablePath)
JdbcDialectTypeMapper	getJdbcDialectTypeMapper()	get jdbc meta-information type to seatunnel data type mapper.
ResultSetMetaData	getResultSetMetaData(Connection conn, String query)
JdbcRowConverter	getRowConverter()	Get converter that convert jdbc object to seatunnel internal object.
Optional<String>	getUpsertStatement(String database, String tableName, String[] fieldNames, String[] uniqueKeyFields)	Constructs the dialects upsert statement if supported; such as MySQL's DUPLICATE KEY UPDATE, or PostgreSQL's ON CONFLICT... DO UPDATE SET...
org.apache.seatunnel.api.table.catalog.TablePath	parse(String tablePath)
Object	queryNextChunkMax(Connection connection, JdbcSourceTable table, String columnName, int chunkSize, Object includedLowerBound)	Query the maximum value of the next chunk, and the next chunk must be greater than or equal to includedLowerBound value [min_1, max_1), [min_2, max_2),...
String	quoteIdentifier(String identifier)	Quotes the identifier for table name or field name
String	tableIdentifier(String database, String tableName)
String	tableIdentifier(org.apache.seatunnel.api.table.catalog.TablePath tablePath)

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.seatunnel.jdbc.internal.dialect.JdbcDialect

approximateRowCntStatement, buildAlterTableBasicSql, buildAlterTableSql, connectionUrlParse, convertType, decorateWithColumnNameAndType, decorateWithComment, decorateWithDefaultValue, decorateWithNullable, defaultParameter, generateAlterTableSql, getDeleteStatement, getFieldIde, getInsertIntoStatement, getJdbcConnectionProvider, getRowExistsStatement, getUpdateStatement, hashModForField, hashModForField, isSpecialDefaultValue, needsQuotesWithDefaultValue, quoteDatabaseIdentifier, quotesDefaultValue, refreshTableSchemaBySchemaChangeEvent, sampleDataFromColumn

字段详细资料

fieldIde

public String fieldIde

构造器详细资料

XuguDialect

public XuguDialect(String fieldIde)

XuguDialect

public XuguDialect()

方法详细资料

dialectName

public String dialectName()

从接口复制的说明: JdbcDialect

Get the name of jdbc dialect.

指定者:

dialectName 在接口中 JdbcDialect

返回:

the dialect name.

getRowConverter

public JdbcRowConverter getRowConverter()

从接口复制的说明: JdbcDialect

Get converter that convert jdbc object to seatunnel internal object.

指定者:

getRowConverter 在接口中 JdbcDialect

返回:

a row converter for the database

getJdbcDialectTypeMapper

public JdbcDialectTypeMapper getJdbcDialectTypeMapper()

从接口复制的说明: JdbcDialect

get jdbc meta-information type to seatunnel data type mapper.

指定者:

getJdbcDialectTypeMapper 在接口中 JdbcDialect

返回:

a type mapper for the database

quoteIdentifier

public String quoteIdentifier(String identifier)

从接口复制的说明: JdbcDialect

Quotes the identifier for table name or field name

指定者:

quoteIdentifier 在接口中 JdbcDialect

tableIdentifier

public String tableIdentifier(String database,
                              String tableName)

指定者:

tableIdentifier 在接口中 JdbcDialect

extractTableName

public String extractTableName(org.apache.seatunnel.api.table.catalog.TablePath tablePath)

指定者:

extractTableName 在接口中 JdbcDialect

parse

public org.apache.seatunnel.api.table.catalog.TablePath parse(String tablePath)

指定者:

parse 在接口中 JdbcDialect

tableIdentifier

public String tableIdentifier(org.apache.seatunnel.api.table.catalog.TablePath tablePath)

指定者:

tableIdentifier 在接口中 JdbcDialect

getUpsertStatement

public Optional<String> getUpsertStatement(String database,
                                           String tableName,
                                           String[] fieldNames,
                                           String[] uniqueKeyFields)

从接口复制的说明: JdbcDialect

Constructs the dialects upsert statement if supported; such as MySQL's DUPLICATE KEY UPDATE, or PostgreSQL's ON CONFLICT... DO UPDATE SET...

If supported, the returned string will be used as a PreparedStatement. Fields in the statement must be in the same order as the fieldNames parameter.

If the dialect does not support native upsert statements, the writer will fallback to SELECT ROW Exists + UPDATE/INSERT which may have poor performance.

指定者:

getUpsertStatement 在接口中 JdbcDialect

返回:

the dialects UPSERT statement or Optional.empty().

creatPreparedStatement

public PreparedStatement creatPreparedStatement(Connection connection,
                                                String queryTemplate,
                                                int fetchSize)
                                         throws SQLException

从接口复制的说明: JdbcDialect

Different dialects optimize their PreparedStatement

指定者:

creatPreparedStatement 在接口中 JdbcDialect

返回:

The logic about optimize PreparedStatement

抛出:

SQLException

queryNextChunkMax

public Object queryNextChunkMax(Connection connection,
                                JdbcSourceTable table,
                                String columnName,
                                int chunkSize,
                                Object includedLowerBound)
                         throws SQLException

从接口复制的说明: JdbcDialect

Query the maximum value of the next chunk, and the next chunk must be greater than or equal to includedLowerBound value [min_1, max_1), [min_2, max_2),... [min_n, null). Each time this method is called it will return max1, max2...

指定者:

queryNextChunkMax 在接口中 JdbcDialect

参数:

connection - JDBC connection.

table - table info.

columnName - column name.

chunkSize - chunk size.

includedLowerBound - the previous chunk end value.

返回:

next chunk end value.

抛出:

SQLException

getResultSetMetaData

public ResultSetMetaData getResultSetMetaData(Connection conn,
                                              String query)
                                       throws SQLException

指定者:

getResultSetMetaData 在接口中 JdbcDialect

抛出:

SQLException