Package org.h2.jdbc
Class JdbcClob
- java.lang.Object
-
- org.h2.message.TraceObject
-
- org.h2.jdbc.JdbcLob
-
- org.h2.jdbc.JdbcClob
-
- All Implemented Interfaces:
java.sql.Clob
,java.sql.NClob
public final class JdbcClob extends JdbcLob implements java.sql.NClob
Represents a CLOB value.
-
-
Nested Class Summary
-
Nested classes/interfaces inherited from class org.h2.jdbc.JdbcLob
JdbcLob.LobPipedOutputStream, JdbcLob.State
-
-
Field Summary
-
Fields inherited from class 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
-
-
Constructor Summary
Constructors Constructor Description JdbcClob(JdbcConnection conn, Value value, JdbcLob.State state, int id)
INTERNAL
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.io.InputStream
getAsciiStream()
Returns the input stream.java.io.Reader
getCharacterStream()
Returns the reader.java.io.Reader
getCharacterStream(long pos, long length)
Returns the reader, starting from an offset.java.lang.String
getSubString(long pos, int length)
Returns a substring.long
length()
Returns the length.long
position(java.lang.String pattern, long start)
[Not supported] Searches a pattern and return the position.long
position(java.sql.Clob clobPattern, long start)
[Not supported] Searches a pattern and return the position.java.io.OutputStream
setAsciiStream(long pos)
[Not supported] Returns an output stream.java.io.Writer
setCharacterStream(long pos)
Get a writer to update the Clob.int
setString(long pos, java.lang.String str)
Fills the Clob.int
setString(long pos, java.lang.String str, int offset, int len)
Fills the Clob.void
truncate(long len)
[Not supported] Truncates the object.-
Methods inherited from class org.h2.jdbc.JdbcLob
checkClosed, checkEditable, checkReadable, completeWrite, free, getBinaryStream, setCharacterStreamImpl, setClobOutputStreamImpl, toString
-
Methods inherited from class 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
-
-
-
-
Constructor Detail
-
JdbcClob
public JdbcClob(JdbcConnection conn, Value value, JdbcLob.State state, int id)
INTERNAL- Parameters:
conn
- it belongs tovalue
- ofstate
- of the LOBid
- of the trace object
-
-
Method Detail
-
length
public long length() throws java.sql.SQLException
Returns the length.- Specified by:
length
in interfacejava.sql.Clob
- Returns:
- the length
- Throws:
java.sql.SQLException
-
truncate
public void truncate(long len) throws java.sql.SQLException
[Not supported] Truncates the object.- Specified by:
truncate
in interfacejava.sql.Clob
- Throws:
java.sql.SQLException
-
getAsciiStream
public java.io.InputStream getAsciiStream() throws java.sql.SQLException
Returns the input stream.- Specified by:
getAsciiStream
in interfacejava.sql.Clob
- Returns:
- the input stream
- Throws:
java.sql.SQLException
-
setAsciiStream
public java.io.OutputStream setAsciiStream(long pos) throws java.sql.SQLException
[Not supported] Returns an output stream.- Specified by:
setAsciiStream
in interfacejava.sql.Clob
- Throws:
java.sql.SQLException
-
getCharacterStream
public java.io.Reader getCharacterStream() throws java.sql.SQLException
Description copied from class:JdbcLob
Returns the reader.- Specified by:
getCharacterStream
in interfacejava.sql.Clob
- Overrides:
getCharacterStream
in classJdbcLob
- Returns:
- the reader
- Throws:
java.sql.SQLException
- on failure
-
setCharacterStream
public java.io.Writer setCharacterStream(long pos) throws java.sql.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.- Specified by:
setCharacterStream
in interfacejava.sql.Clob
- Parameters:
pos
- where to start writing (the first character is at position 1)- Returns:
- a writer
- Throws:
java.sql.SQLException
-
getSubString
public java.lang.String getSubString(long pos, int length) throws java.sql.SQLException
Returns a substring.- Specified by:
getSubString
in interfacejava.sql.Clob
- Parameters:
pos
- the position (the first character is at position 1)length
- the number of characters- Returns:
- the string
- Throws:
java.sql.SQLException
-
setString
public int setString(long pos, java.lang.String str) throws java.sql.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.- Specified by:
setString
in interfacejava.sql.Clob
- Parameters:
pos
- where to start writing (the first character is at position 1)str
- the string to add- Returns:
- the length of the added text
- Throws:
java.sql.SQLException
- on failure
-
setString
public int setString(long pos, java.lang.String str, int offset, int len) throws java.sql.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.- Specified by:
setString
in interfacejava.sql.Clob
- Parameters:
pos
- where to start writing (the first character is at position 1)str
- the string to addoffset
- the string offsetlen
- the number of characters to read- Returns:
- the length of the added text
- Throws:
java.sql.SQLException
-
position
public long position(java.lang.String pattern, long start) throws java.sql.SQLException
[Not supported] Searches a pattern and return the position.- Specified by:
position
in interfacejava.sql.Clob
- Throws:
java.sql.SQLException
-
position
public long position(java.sql.Clob clobPattern, long start) throws java.sql.SQLException
[Not supported] Searches a pattern and return the position.- Specified by:
position
in interfacejava.sql.Clob
- Throws:
java.sql.SQLException
-
getCharacterStream
public java.io.Reader getCharacterStream(long pos, long length) throws java.sql.SQLException
Returns the reader, starting from an offset.- Specified by:
getCharacterStream
in interfacejava.sql.Clob
- Parameters:
pos
- 1-based offsetlength
- length of requested area- Returns:
- the reader
- Throws:
java.sql.SQLException
-
-