com.taosdata.jdbc

Class TSDBJNIConnector

java.lang.Object

com.taosdata.jdbc.TSDBJNIConnector

public class TSDBJNIConnector
extends Object

JNI connector

Constructor Summary

Constructors

Constructor and Description
TSDBJNIConnector()

Method Summary

Modifier and Type	Method and Description
void	bindColumnDataArray(long stmt, ByteBuffer colDataList, ByteBuffer lengthList, ByteBuffer isNullList, int type, int bytes, int numOfRows, int columnIndex)
void	closeBatch(long stmt)
void	closeConnection() Execute close operation from C to release connection pointer by JNI
boolean	connect(String host, int port, String dbName, String user, String password)
void	executeBatch(long stmt)
long	executeQuery(String sql) Execute DML/DDL operation
int	fetchBlock(long resultSet, TSDBResultSetBlockData blockData)
int	fetchRow(long resultSet, TSDBResultSetRowData rowData) Get one row data
int	freeResultSet(long pSql) Free result set operation from C to release result set pointer by JNI
int	getAffectedRows(long pSql) Get affected rows count
int	getErrCode(long pSql) Get recent error code by connection
String	getErrMsg(long pSql) Get recent error message by connection
int	getResultTimePrecision(long sqlObj) Get Result Time Precision.
int	getSchemaMetaData(long resultSet, List<ColumnMetaData> columnMetaData) Get schema metadata
static void	init(Properties props)
void	insertLines(String[] lines, SchemalessProtocolType protocolType, SchemalessTimestampType timestampType)
boolean	isClosed()
boolean	isResultsetClosed()
boolean	isUpdateQuery(long pSql)
long	prepareStmt(String sql)
void	setBindTableName(long stmt, String tableName)
void	setBindTableNameAndTags(long stmt, String tableName, int numOfTags, ByteBuffer tags, ByteBuffer typeList, ByteBuffer lengthList, ByteBuffer nullList)

Methods inherited from class java.lang.Object

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

Constructor Detail

TSDBJNIConnector

public TSDBJNIConnector()

Method Detail

init

public static void init(Properties props)
                 throws SQLWarning

Throws:

SQLWarning

connect

public boolean connect(String host,
                       int port,
                       String dbName,
                       String user,
                       String password)
                throws SQLException

Throws:

SQLException

executeQuery

public long executeQuery(String sql)
                  throws SQLException

Execute DML/DDL operation

Throws:

SQLException

getErrCode

public int getErrCode(long pSql)

Get recent error code by connection

getErrMsg

public String getErrMsg(long pSql)

Get recent error message by connection

isUpdateQuery

public boolean isUpdateQuery(long pSql)

isClosed

public boolean isClosed()

isResultsetClosed

public boolean isResultsetClosed()

freeResultSet

public int freeResultSet(long pSql)

Free result set operation from C to release result set pointer by JNI

getAffectedRows

public int getAffectedRows(long pSql)

Get affected rows count

getSchemaMetaData

public int getSchemaMetaData(long resultSet,
                             List<ColumnMetaData> columnMetaData)

Get schema metadata

fetchRow

public int fetchRow(long resultSet,
                    TSDBResultSetRowData rowData)

Get one row data

fetchBlock

public int fetchBlock(long resultSet,
                      TSDBResultSetBlockData blockData)

getResultTimePrecision

public int getResultTimePrecision(long sqlObj)

Get Result Time Precision.

Returns:

0: ms, 1: us, 2: ns

closeConnection

public void closeConnection()
                     throws SQLException

Execute close operation from C to release connection pointer by JNI

Throws:

SQLException

prepareStmt

public long prepareStmt(String sql)
                 throws SQLException

Throws:

SQLException

setBindTableName

public void setBindTableName(long stmt,
                             String tableName)
                      throws SQLException

Throws:

SQLException

setBindTableNameAndTags

public void setBindTableNameAndTags(long stmt,
                                    String tableName,
                                    int numOfTags,
                                    ByteBuffer tags,
                                    ByteBuffer typeList,
                                    ByteBuffer lengthList,
                                    ByteBuffer nullList)
                             throws SQLException

Throws:

SQLException

bindColumnDataArray

public void bindColumnDataArray(long stmt,
                                ByteBuffer colDataList,
                                ByteBuffer lengthList,
                                ByteBuffer isNullList,
                                int type,
                                int bytes,
                                int numOfRows,
                                int columnIndex)
                         throws SQLException

Throws:

SQLException

executeBatch

public void executeBatch(long stmt)
                  throws SQLException

Throws:

SQLException

closeBatch

public void closeBatch(long stmt)
                throws SQLException

Throws:

SQLException

insertLines

public void insertLines(String[] lines,
                        SchemalessProtocolType protocolType,
                        SchemalessTimestampType timestampType)
                 throws SQLException

Throws:

SQLException