com.taosdata.jdbc

类 TSDBJNIConnector

java.lang.Object

com.taosdata.jdbc.TSDBJNIConnector

public class TSDBJNIConnector
extends Object

JNI connector

构造器概要

构造器

构造器和说明
TSDBJNIConnector()

方法概要

限定符和类型	方法和说明
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 String	getTsCharset()
static void	init(String configDir, String locale, String charset, String timezone)
static void	initImp(String configDir)
void	insertLines(String[] lines)
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)
static int	setOptions(int optionIndex, String optionValue)
boolean	validateCreateTableSql(String sql) Validate if a create table SQL statement is correct without actually creating that table

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

TSDBJNIConnector

public TSDBJNIConnector()

方法详细资料

isClosed

public boolean isClosed()

isResultsetClosed

public boolean isResultsetClosed()

init

public static void init(String configDir,
                        String locale,
                        String charset,
                        String timezone)
                 throws SQLWarning

抛出:

SQLWarning

initImp

public static void initImp(String configDir)

setOptions

public static int setOptions(int optionIndex,
                             String optionValue)

getTsCharset

public static String getTsCharset()

connect

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

抛出:

SQLException

executeQuery

public long executeQuery(String sql)
                  throws SQLException

Execute DML/DDL operation

抛出:

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)

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.

返回:

0: ms, 1: us, 2: ns

closeConnection

public void closeConnection()
                     throws SQLException

Execute close operation from C to release connection pointer by JNI

抛出:

SQLException

validateCreateTableSql

public boolean validateCreateTableSql(String sql)

Validate if a create table SQL statement is correct without actually creating that table

prepareStmt

public long prepareStmt(String sql)
                 throws SQLException

抛出:

SQLException

setBindTableName

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

抛出:

SQLException

setBindTableNameAndTags

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

抛出:

SQLException

bindColumnDataArray

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

抛出:

SQLException

executeBatch

public void executeBatch(long stmt)
                  throws SQLException

抛出:

SQLException

closeBatch

public void closeBatch(long stmt)
                throws SQLException

抛出:

SQLException

insertLines

public void insertLines(String[] lines)
                 throws SQLException

抛出:

SQLException