com.sequoiadb.base

接口 DBLob

public interface DBLob

字段概要

字段

限定符和类型	字段和说明
static int	SDB_LOB_SEEK_CUR
static int	SDB_LOB_SEEK_END
static int	SDB_LOB_SEEK_SET

方法概要

方法

限定符和类型	方法和说明
void	close()
long	getCreateTime()
ObjectId	getID()
long	getSize()
int	read(byte[] b)
void	seek(long size, int seekType)
void	write(byte[] b)

字段详细资料

SDB_LOB_SEEK_SET

static final int SDB_LOB_SEEK_SET

另请参阅:

常量字段值

SDB_LOB_SEEK_CUR

static final int SDB_LOB_SEEK_CUR

另请参阅:

常量字段值

SDB_LOB_SEEK_END

static final int SDB_LOB_SEEK_END

另请参阅:

常量字段值

方法详细资料

getID

ObjectId getID()

返回:

the lob's id

getSize

long getSize()

返回:

the lob's size

getCreateTime

long getCreateTime()

返回:

the lob's create time

write

void write(byte[] b)
           throws BaseException

参数:

b - the data.

抛出:

BaseException

read

int read(byte[] b)
         throws BaseException

参数:

b - the buffer into which the data is read.

返回:

the total number of bytes read into the buffer, or-1 if there is no more data because the end of the file has been reached, or 0 if b.length is Zero.

抛出:

BaseException

seek

void seek(long size,
        int seekType)
          throws BaseException

参数:

size - the adding size.

seekType - SDB_LOB_SEEK_SET/SDB_LOB_SEEK_CUR/SDB_LOB_SEEK_END

抛出:

com.sequoiadb.exception.BaseException.

BaseException

close

void close()
           throws BaseException

抛出:

BaseException