org.h2.jdbc

类 JdbcClob

java.lang.Object

org.h2.message.TraceObject

org.h2.jdbc.JdbcLob

org.h2.jdbc.JdbcClob

所有已实现的接口:

Clob, NClob

public final class JdbcClob
extends JdbcLob
implements NClob

Represents a CLOB value.

嵌套类概要

从类继承的嵌套类/接口 org.h2.jdbc.JdbcLob

JdbcLob.State

字段概要

从类继承的字段 org.h2.message.TraceObject

ARRAY, BLOB, CALLABLE_STATEMENT, CLOB, CONNECTION, DATA_SOURCE, DATABASE_META_DATA, PARAMETER_META_DATA, PREPARED_STATEMENT, RESULT_SET, RESULT_SET_META_DATA, SAVEPOINT, SQLXML, STATEMENT, trace, XA_DATA_SOURCE, XID

构造器概要

构造器

构造器和说明
JdbcClob(JdbcConnection conn, Value value, JdbcLob.State state, int id) INTERNAL

方法概要

限定符和类型	方法和说明
InputStream	getAsciiStream() Returns the input stream.
Reader	getCharacterStream() Returns the reader.
Reader	getCharacterStream(long pos, long length) Returns the reader, starting from an offset.
String	getSubString(long pos, int length) Returns a substring.
long	length() Returns the length.
long	position(Clob clobPattern, long start) [Not supported] Searches a pattern and return the position.
long	position(String pattern, long start) [Not supported] Searches a pattern and return the position.
OutputStream	setAsciiStream(long pos) [Not supported] Returns an output stream.
Writer	setCharacterStream(long pos) Get a writer to update the Clob.
int	setString(long pos, String str) Fills the Clob.
int	setString(long pos, String str, int offset, int len) Fills the Clob.
void	truncate(long len) [Not supported] Truncates the object.

从类继承的方法 org.h2.jdbc.JdbcLob

free, toString

从类继承的方法 org.h2.message.TraceObject

debugCode, debugCodeAssign, debugCodeCall, debugCodeCall, debugCodeCall, getNextId, getTraceId, getTraceObjectName, isDebugEnabled, isInfoEnabled, logAndConvert, quote, quoteArray, quoteBigDecimal, quoteBytes, quoteDate, quoteIntArray, quoteMap, quoteTime, quoteTimestamp, setTrace, unsupported

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.sql.Clob

free

构造器详细资料

JdbcClob

public JdbcClob(JdbcConnection conn,
                Value value,
                JdbcLob.State state,
                int id)

INTERNAL

参数:

conn - it belongs to

value - of

state - of the LOB

id - of the trace object

方法详细资料

length

public long length()
            throws SQLException

Returns the length.

指定者:

length 在接口中 Clob

返回:

the length

抛出:

SQLException

truncate

public void truncate(long len)
              throws SQLException

[Not supported] Truncates the object.

指定者:

truncate 在接口中 Clob

抛出:

SQLException

getAsciiStream

public InputStream getAsciiStream()
                           throws SQLException

Returns the input stream.

指定者:

getAsciiStream 在接口中 Clob

返回:

the input stream

抛出:

SQLException

setAsciiStream

public OutputStream setAsciiStream(long pos)
                            throws SQLException

[Not supported] Returns an output stream.

指定者:

setAsciiStream 在接口中 Clob

抛出:

SQLException

getCharacterStream

public Reader getCharacterStream()
                          throws SQLException

从类复制的说明: JdbcLob

Returns the reader.

指定者:

getCharacterStream 在接口中 Clob

返回:

the reader

抛出:

SQLException - on failure

setCharacterStream

public Writer setCharacterStream(long pos)
                          throws SQLException

Get a writer to update the Clob. This is only supported for new, empty Clob objects that were created with Connection.createClob() or createNClob(). The Clob is created in a separate thread, and the object is only updated when Writer.close() is called. The position must be 1, meaning the whole Clob data is set.

指定者:

setCharacterStream 在接口中 Clob

参数:

pos - where to start writing (the first character is at position 1)

返回:

a writer

抛出:

SQLException

getSubString

public String getSubString(long pos,
                           int length)
                    throws SQLException

Returns a substring.

指定者:

getSubString 在接口中 Clob

参数:

pos - the position (the first character is at position 1)

length - the number of characters

返回:

the string

抛出:

SQLException

setString

public int setString(long pos,
                     String str)
              throws SQLException

Fills the Clob. This is only supported for new, empty Clob objects that were created with Connection.createClob() or createNClob(). The position must be 1, meaning the whole Clob data is set.

指定者:

setString 在接口中 Clob

参数:

pos - where to start writing (the first character is at position 1)

str - the string to add

返回:

the length of the added text

抛出:

SQLException - on failure

setString

public int setString(long pos,
                     String str,
                     int offset,
                     int len)
              throws SQLException

Fills the Clob. This is only supported for new, empty Clob objects that were created with Connection.createClob() or createNClob(). The position must be 1, meaning the whole Clob data is set.

指定者:

setString 在接口中 Clob

参数:

pos - where to start writing (the first character is at position 1)

str - the string to add

offset - the string offset

len - the number of characters to read

返回:

the length of the added text

抛出:

SQLException

position

public long position(String pattern,
                     long start)
              throws SQLException

[Not supported] Searches a pattern and return the position.

指定者:

position 在接口中 Clob

抛出:

SQLException

position

public long position(Clob clobPattern,
                     long start)
              throws SQLException

[Not supported] Searches a pattern and return the position.

指定者:

position 在接口中 Clob

抛出:

SQLException

getCharacterStream

public Reader getCharacterStream(long pos,
                                 long length)
                          throws SQLException

Returns the reader, starting from an offset.

指定者:

getCharacterStream 在接口中 Clob

参数:

pos - 1-based offset

length - length of requested area

返回:

the reader

抛出:

SQLException