src.com.ibm.as400.access.SQLClobLocator Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jt400 Show documentation
Show all versions of jt400 Show documentation
The Open Source version of the IBM Toolbox for Java
///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename: SQLClobLocator.java
//
// The source code contained herein is licensed under the IBM Public License
// Version 1.0, which has been approved by the Open Source Initiative.
// Copyright (C) 1997-2006 International Business Machines Corporation and
// others. All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////
package com.ibm.as400.access;
import java.io.*;
import java.math.BigDecimal;
import java.sql.Array;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Date;
/* ifdef JDBC40
import java.sql.NClob;
import java.sql.RowId;
endif */
import java.sql.SQLException;
/* ifdef JDBC40
import java.sql.SQLXML;
endif */
import java.sql.Time;
import java.sql.Timestamp;
import java.util.Calendar;
final class SQLClobLocator implements SQLLocator
{
static final String copyright = "Copyright (C) 1997-2006 International Business Machines Corporation and others.";
private AS400JDBCConnection connection_;
private SQLConversionSettings settings_;
private ConvTable converter_;
private int id_;
private JDLobLocator locator_;
private int maxLength_;
private int truncated_;
private boolean outOfBounds_;
private int columnIndex_;
private String value_; //@loch //Note that value_ is not used as the output for a ResultSet.getX() call. We Get the value from a call to the JDLocator (not from value_) and not from the savedObject_, unless resultSet.updateX(obj1) is called followed by a obj2 = resultSet.getX()
private Object savedObject_; // This is the AS400JDBCBlobLocator or InputStream or whatever got set into us.
private int scale_; // This is actually the length that got set into us.
SQLClobLocator(AS400JDBCConnection connection,
int id,
int maxLength,
SQLConversionSettings settings,
ConvTable converter,
int columnIndex)
{
connection_ = connection;
id_ = id;
locator_ = new JDLobLocator(connection, id, maxLength, false);
maxLength_ = maxLength;
truncated_ = 0; outOfBounds_ = false;
settings_ = settings;
converter_ = converter;
columnIndex_ = columnIndex;
}
public Object clone()
{
return new SQLClobLocator(connection_, id_, maxLength_, settings_, converter_, columnIndex_);
}
public void setHandle(int handle)
{
locator_.setHandle(handle);
// @J5A reset savedObject after setting handle
savedObject_ = null;
}
//@loch
public int getHandle()
{
return locator_.getHandle();
}
//---------------------------------------------------------//
// //
// CONVERSION TO AND FROM RAW BYTES //
// //
//---------------------------------------------------------//
public void convertFromRawBytes(byte[] rawBytes, int offset, ConvTable ccsidConverter)
throws SQLException
{
int locatorHandle = BinaryConverter.byteArrayToInt(rawBytes, offset);
locator_.setHandle(locatorHandle);
locator_.setColumnIndex(columnIndex_);
// @J5A reset saved handle after setting new value
savedObject_ = null;
}
//@CRS - This is only called from AS400JDBCPreparedStatement in one place.
public void convertToRawBytes(byte[] rawBytes, int offset, ConvTable ccsidConverter)
throws SQLException
{
BinaryConverter.intToByteArray(locator_.getHandle(), rawBytes, offset);
// Now we write our saved data to the system, because the prepared statement is being executed.
// We used to write the data to the system on the call to set(), but this messed up
// batch executes, since the host server only reserves temporary space for locator handles one row at a time.
// See the toObject() method in this class for more details.
if(savedObject_ != null) writeToServer();
}
//---------------------------------------------------------//
// //
// SET METHODS //
// //
//---------------------------------------------------------//
public void set(Object object, Calendar calendar, int scale)
throws SQLException
{
//@selins1 make same as SQLClob
// If it's a String we check for data truncation.
if(object instanceof String)
{
String s = (String)object;
int length = s.length();
truncated_ = (length > maxLength_ ? length-maxLength_ : 0);
outOfBounds_ = false;
}
else if( !(object instanceof Reader) &&
!(object instanceof InputStream) &&
(JDUtilities.JDBCLevel_ >= 20 && !(object instanceof Clob))
/*ifdef JDBC40
&& !(object instanceof SQLXML)
endif*/
)
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
savedObject_ = object;
if(scale != -1) scale_ = scale; // Skip resetting it if we don't know the real length
}
//@loch method to temporary convert from object input to output before even going to host (writeToServer() does the conversion needed before writing to host)
//This will only be used when resultSet.updateX(obj1) is called followed by a obj2 = resultSet.getX()
//Purpose is to do a local type conversion from obj1 to obj2 like other non-locator lob types
private void doConversion()
throws SQLException
{
int length_ = scale_;
if( length_ == -1)
{
try{
//try to get length from locator
length_ = (int)locator_.getLength();
}catch(Exception e){ }
}
try
{
Object object = savedObject_;
if(savedObject_ instanceof String)
{
value_ = (String)object;
}
else if(object instanceof Reader)
{
if(length_ >= 0)
{
try
{
int blockSize = length_ < AS400JDBCPreparedStatement.LOB_BLOCK_SIZE ? length_ : AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
Reader stream = (Reader)object;
StringBuffer buf = new StringBuffer();
char[] charBuffer = new char[blockSize];
int totalCharsRead = 0;
int charsRead = stream.read(charBuffer, 0, blockSize);
while(charsRead > -1 && totalCharsRead < length_)
{
buf.append(charBuffer, 0, charsRead);
totalCharsRead += charsRead;
int charsRemaining = length_ - totalCharsRead;
if(charsRemaining < blockSize)
{
blockSize = charsRemaining;
}
charsRead = stream.read(charBuffer, 0, blockSize);
}
value_ = buf.toString();
if(value_.length() < length_)
{
// a length longer than the stream was specified
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
}
else if(length_ == -2)//@readerlen new else-if block (read all data)
{
try
{
int blockSize = AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
Reader stream = (Reader)object;
StringBuffer buf = new StringBuffer();
char[] charBuffer = new char[blockSize];
int totalCharsRead = 0;
int charsRead = stream.read(charBuffer, 0, blockSize);
while(charsRead > -1)
{
buf.append(charBuffer, 0, charsRead);
totalCharsRead += charsRead;
charsRead = stream.read(charBuffer, 0, blockSize);
}
value_ = buf.toString();
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
}
else
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
else if( object instanceof Clob)
{
Clob clob = (Clob)object;
value_ = clob.getSubString(1, (int)clob.length());
}
/* ifdef JDBC40
else if( object instanceof SQLXML )
{
SQLXML xml = (SQLXML)object;
value_ = xml.getString();
}
endif */
else
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
// Truncate if necessary.
int valueLength = value_.length();
if(valueLength > maxLength_)
{
value_ = value_.substring(0, maxLength_);
}
}
finally
{
//nothing
}
}
private void writeToServer()
throws SQLException
{
try
{
Object object = savedObject_;
if(object instanceof String)
{
String string = (String)object;
int bidiStringType = settings_.getBidiStringType();
if(bidiStringType == -1) bidiStringType = converter_.bidiStringType_;
BidiConversionProperties bidiConversionProperties = new BidiConversionProperties(bidiStringType); //@KBA
bidiConversionProperties.setBidiImplicitReordering(settings_.getBidiImplicitReordering()); //@KBA
bidiConversionProperties.setBidiNumericOrderingRoundTrip(settings_.getBidiNumericOrdering()); //@KBA
byte[] bytes = converter_.stringToByteArray(string, bidiConversionProperties); //@KBC changed to use bidiConversionProperties instead of bidiStringType
locator_.writeData(0L, bytes, true); //@K1C
}
else if(object instanceof Reader)
{
int length = scale_; // hack to get the length into the set method
// Need to write even if there are 0 bytes in case we are batching and
// the host server reuses the same handle for the previous locator; otherwise,
// we'll have data in the current row from the previous row.
if (length == 0)
{
locator_.writeData(0, new byte[0], 0, 0, true); //@K1C
}
else if(length > 0)
{
try
{
int blockSize = length < AS400JDBCPreparedStatement.LOB_BLOCK_SIZE ? length : AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
int bidiStringType = settings_.getBidiStringType();
if(bidiStringType == -1) bidiStringType = converter_.bidiStringType_;
BidiConversionProperties bidiConversionProperties = new BidiConversionProperties(bidiStringType); //@KBA
bidiConversionProperties.setBidiImplicitReordering(settings_.getBidiImplicitReordering()); //@KBA
bidiConversionProperties.setBidiNumericOrderingRoundTrip(settings_.getBidiNumericOrdering()); //@KBA
ReaderInputStream stream = new ReaderInputStream((Reader)savedObject_, converter_.getCcsid(), bidiConversionProperties, blockSize); //@KBC changed to use bidiConversionProperties instead of bidiStringType
byte[] byteBuffer = new byte[blockSize];
int totalBytesRead = 0;
int bytesRead = stream.read(byteBuffer, 0, blockSize);
while(bytesRead > -1 && totalBytesRead < length)
{
locator_.writeData((long)totalBytesRead, byteBuffer, 0, bytesRead, true); // totalBytesRead is our offset. @K1C
totalBytesRead += bytesRead;
int bytesRemaining = length - totalBytesRead;
if(bytesRemaining < blockSize)
{
blockSize = bytesRemaining;
if(stream.available() == 0 && blockSize != 0)
{
stream.close(); //@scan1
stream = new ReaderInputStream((Reader)savedObject_, converter_.getCcsid(), bidiConversionProperties, blockSize); // do this so we don't read more chars out of the Reader than we have to. //@KBC changed to use bidiConversionProperties instead of bidiStringType
}
}
bytesRead = stream.read(byteBuffer, 0, blockSize);
}
stream.close(); //@scan1
if(totalBytesRead < length)
{
// a length longer than the stream was specified
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
}
else if(length == -2)//@readerlen new else-if block (read all data)
{
try
{
//String readerStr = JDUtilities.readerToString((Reader)savedObject_);
int blockSize = AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
int bidiStringType = settings_.getBidiStringType();
if(bidiStringType == -1) bidiStringType = converter_.bidiStringType_;
BidiConversionProperties bidiConversionProperties = new BidiConversionProperties(bidiStringType); //@KBA
bidiConversionProperties.setBidiImplicitReordering(settings_.getBidiImplicitReordering()); //@KBA
bidiConversionProperties.setBidiNumericOrderingRoundTrip(settings_.getBidiNumericOrdering()); //@KBA
ReaderInputStream stream = new ReaderInputStream((Reader)savedObject_, converter_.getCcsid(), bidiConversionProperties, blockSize); //@KBC changed to use bidiConversionProperties instead of bidiStringType
byte[] byteBuffer = new byte[blockSize];
int totalBytesRead = 0;
int bytesRead = stream.read(byteBuffer, 0, blockSize);
while(bytesRead > -1 )
{
locator_.writeData((long)totalBytesRead, byteBuffer, 0, bytesRead, true); // totalBytesRead is our offset. @K1C
totalBytesRead += bytesRead;
bytesRead = stream.read(byteBuffer, 0, blockSize);
}
stream.close(); //@scan1
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
}
else
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
else if(object instanceof InputStream)
{
int length = scale_; // hack to get the length into the set method
// Need to write even if there are 0 bytes in case we are batching and
// the host server reuses the same handle for the previous locator; otherwise,
// we'll have data in the current row from the previous row.
if (length == 0)
{
locator_.writeData(0, new byte[0], 0, 0, true); //@K1C
}
else if(length > 0)
{
InputStream stream = (InputStream)savedObject_;
int blockSize = length < AS400JDBCPreparedStatement.LOB_BLOCK_SIZE ? length : AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
byte[] byteBuffer = new byte[blockSize];
try
{
int totalBytesRead = 0;
int bytesRead = stream.read(byteBuffer, 0, blockSize);
while(bytesRead > -1 && totalBytesRead < length)
{
locator_.writeData((long)totalBytesRead, byteBuffer, 0, bytesRead, true); // totalBytesRead is our offset. @K1C
totalBytesRead += bytesRead;
int bytesRemaining = length - totalBytesRead;
if(bytesRemaining < blockSize)
{
blockSize = bytesRemaining;
}
bytesRead = stream.read(byteBuffer, 0, blockSize);
}
if(totalBytesRead < length)
{
// a length longer than the stream was specified
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
}
else if(length == -2)//@readerlen new else-if block (read all data)
{
InputStream stream = (InputStream)savedObject_;
int blockSize = AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
byte[] byteBuffer = new byte[blockSize];
try
{
int totalBytesRead = 0;
int bytesRead = stream.read(byteBuffer, 0, blockSize);
while(bytesRead > -1)
{
locator_.writeData((long)totalBytesRead, byteBuffer, 0, bytesRead, true); // totalBytesRead is our offset. @K1C
totalBytesRead += bytesRead;
bytesRead = stream.read(byteBuffer, 0, blockSize);
}
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
}
else
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
else if(JDUtilities.JDBCLevel_ >= 20 && object instanceof Clob) //@H0A check for jdbc level to know if lobs exist
{
//@G5A Start new code for updateable locator case
boolean set = false;
if(object instanceof AS400JDBCClobLocator)
{
AS400JDBCClobLocator clob = (AS400JDBCClobLocator)object;
//Synchronize on a lock so that the user can't keep making updates
//to the clob while we are taking updates off the vectors.
synchronized(clob)
{
// See if we saved off our real object from earlier.
if(clob.savedObject_ != null)
{
savedObject_ = clob.savedObject_;
scale_ = clob.savedScale_;
clob.savedObject_ = null;
writeToServer();
return;
}
}
}
//@G5A If the code for updateable lob locators did not run, then run old code.
if(!set)
{
Clob clob = (Clob)object;
int length = (int)clob.length();
String substring = clob.getSubString(1, length);
// This code used to assume that the input length was the same as the output length
// locator_.writeData(0L, converter_.stringToByteArray(substring), 0, length, true); //@K1C
// @J5C
byte[] writeByteArray = converter_.stringToByteArray(substring);
locator_.writeData(0L, writeByteArray, 0, writeByteArray.length, true);
set = true;
}
else
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
/*ifdef JDBC40
else if( object instanceof SQLXML ) //@PDA jdbc40
{
SQLXML xml = (SQLXML)object;
String stringVal = xml.getString();
// @J5C
byte[] outByteArray = converter_.stringToByteArray(stringVal);
locator_.writeData(0L, outByteArray, 0, outByteArray.length, true);
}
endif */
else
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
finally
{
savedObject_ = null;
}
scale_ = (int)locator_.getLength();
}
//---------------------------------------------------------//
// //
// DESCRIPTION OF SQL TYPE //
// //
//---------------------------------------------------------//
public int getSQLType()
{
return SQLData.CLOB_LOCATOR;
}
public String getCreateParameters()
{
return AS400JDBCDriver.getResource("MAXLENGTH");
}
public int getDisplaySize()
{
return maxLength_;
}
public String getJavaClassName()
{
return "com.ibm.as400.access.AS400JDBCClobLocator";
}
public String getLiteralPrefix()
{
return null;
}
public String getLiteralSuffix()
{
return null;
}
public String getLocalName()
{
return "CLOB";
}
public int getMaximumPrecision()
{
return AS400JDBCDatabaseMetaData.MAX_LOB_LENGTH; //@xml3 // the DB2 SQL reference says this should be 2147483647 but we return 1 less to allow for NOT NULL columns
}
public int getMaximumScale()
{
return 0;
}
public int getMinimumScale()
{
return 0;
}
public int getNativeType()
{
return 964;
}
public int getPrecision()
{
return maxLength_;
}
public int getRadix()
{
return 0;
}
public int getScale()
{
return 0;
}
public int getType()
{
return java.sql.Types.CLOB;
}
public String getTypeName()
{
return "CLOB";
}
public boolean isSigned()
{
return false;
}
public boolean isText()
{
return true;
}
public int getActualSize()
{
return maxLength_;
}
public int getTruncated()
{
return truncated_;
}
public boolean getOutOfBounds() {
return outOfBounds_;
}
//---------------------------------------------------------//
// //
// CONVERSIONS TO JAVA TYPES //
// //
//---------------------------------------------------------//
public InputStream getAsciiStream()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
try
{
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return new ByteArrayInputStream(ConvTable.getTable(819, null).stringToByteArray(value_));//@loch
} //@loch
return new ReaderInputStream(new ConvTableReader(new AS400JDBCInputStream(new JDLobLocator(locator_)), converter_.getCcsid()), 819); // ISO-8859-1.
}
catch(UnsupportedEncodingException e)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, e);
return null;
}
}
public BigDecimal getBigDecimal(int scale)
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
public InputStream getBinaryStream()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
try
{
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return new HexReaderInputStream(new StringReader(value_)); //@loch
} //@loch
return new HexReaderInputStream(new ConvTableReader(new AS400JDBCInputStream(new JDLobLocator(locator_)), converter_.getCcsid()));
}
catch(UnsupportedEncodingException e)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, e);
return null;
}
}
public Blob getBlob()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
try
{
byte[] bytes = BinaryConverter.stringToBytes(getString());
return new AS400JDBCBlob(bytes, bytes.length);
}
catch(NumberFormatException nfe)
{
// this Clob contains non-hex characters
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, nfe);
return null;
}
}
public boolean getBoolean()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return false;
}
public byte getByte()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return 0;
}
public byte[] getBytes()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
try
{
return BinaryConverter.stringToBytes(getString());
}
catch(NumberFormatException nfe)
{
// this Clob contains non-hex characters
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, nfe);
return null;
}
}
public Reader getCharacterStream()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
try
{
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return new StringReader(value_); //@loch
} //@loch
return new ConvTableReader(new AS400JDBCInputStream(new JDLobLocator(locator_)), converter_.getCcsid());
}
catch(UnsupportedEncodingException e)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, e);
return null;
}
}
public Clob getClob()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return new AS400JDBCClob(value_, maxLength_); //@loch
} //@loch
AS400JDBCClobLocator locatorReturn = new AS400JDBCClobLocator(new JDLobLocator(locator_), converter_, savedObject_, scale_);
if (ConvTable.isMixedCCSID(converter_.ccsid_)) {
// Since this is a mixed CCSID, the locator APIs with length, etc.. do not work correctly
// @J5A We read the whole thing and convert to a local clob.
savedObject_ = locatorReturn.getSubString((long)1, (int) locatorReturn.length());
return new AS400JDBCClob((String) savedObject_, maxLength_); //@loch
}
return locatorReturn;
}
public Date getDate(Calendar calendar)
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
public double getDouble()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return 0;
}
public float getFloat()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return 0;
}
public int getInt()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return 0;
}
public long getLong()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return 0;
}
public Object getObject()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
// getObject is used by AS400JDBCPreparedStatement for batching, so we save off our InputStream
// inside the AS400JDBCClobLocator. Then, when convertToRawBytes() is called, the writeToServer()
// code checks the AS400JDBCClobLocator's saved InputStream... if it exists, then it writes the
// data out of the InputStream to the system by calling writeToServer() again.
return new AS400JDBCClobLocator(new JDLobLocator(locator_), converter_, savedObject_, scale_);
}
public short getShort()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return 0;
}
public String getString()
throws SQLException
{
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return value_; //@loch
} //@loch
DBLobData data = locator_.retrieveData(0, locator_.getMaxLength());
String value = converter_.byteArrayToString(data.getRawBytes(),
data.getOffset(),
data.getLength());
truncated_ = 0; outOfBounds_ = false; //@pda make consistent with other SQLData Clob classes
return value;
}
public Time getTime(Calendar calendar)
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
public Timestamp getTimestamp(Calendar calendar)
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
public InputStream getUnicodeStream()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
try
{
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return new ReaderInputStream(new StringReader(value_), 13488); //@loch
} //@loch
return new ReaderInputStream(new ConvTableReader(new AS400JDBCInputStream(new JDLobLocator(locator_)), converter_.getCcsid()), 13488);
}
catch(UnsupportedEncodingException e)
{
JDError.throwSQLException(JDError.EXC_INTERNAL, e);
return null;
}
}
//@pda jdbc40
public Reader getNCharacterStream() throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return new StringReader(value_); //@loch
} //@loch
try
{
return new ConvTableReader(new AS400JDBCInputStream(new JDLobLocator(locator_)), converter_.getCcsid());
}
catch(UnsupportedEncodingException e)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, e);
return null;
}
}
//@pda jdbc40
/* ifdef JDBC40
public NClob getNClob() throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return new AS400JDBCNClob(value_, maxLength_); //@loch
} //@loch
AS400JDBCNClobLocator locatorReturn = new AS400JDBCNClobLocator(new JDLobLocator(locator_), converter_, savedObject_, scale_);
if (ConvTable.isMixedCCSID(converter_.ccsid_)) {
// Since this is a mixed CCSID, the locator APIs with length, etc.. do not work correctly
// @J5A We read the whole thing and convert to a local clob.
savedObject_ = locatorReturn.getSubString((long)1, (int) locatorReturn.length());
return new AS400JDBCNClob((String) savedObject_, maxLength_); //@loch
}
return locatorReturn;
}
endif */
//@pda jdbc40
public String getNString() throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return value_; //@loch
} //@loch
DBLobData data = locator_.retrieveData(0, locator_.getMaxLength());
String value = converter_.byteArrayToString(data.getRawBytes(),
data.getOffset(),
data.getLength());
return value;
}
//@pda jdbc40
/* ifdef JDBC40
public RowId getRowId() throws SQLException
{
//truncated_ = 0; outOfBounds_ = false;
//try
//{
// return new AS400JDBCRowId(BinaryConverter.stringToBytes(getString()));
//}
//catch(NumberFormatException nfe)
//{
// this Clob contains non-hex characters
// JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, nfe);
// return null;
//}
//decided this is of no use
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
endif */
//@pda jdbc40
/* ifdef JDBC40
public SQLXML getSQLXML() throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
if(savedObject_ != null)//@loch
{ //@loch
//get value from RS.updateX(value)
doConversion(); //@loch
truncated_ = 0; outOfBounds_ = false; //@loch
return new AS400JDBCSQLXML(value_, maxLength_); //@loch
} //@loch
//return new AS400JDBCSQLXML( getString().toCharArray() );
return new AS400JDBCSQLXMLLocator(new JDLobLocator(locator_), converter_, savedObject_, scale_, false); //@xml3 //@xml4
}
endif */
// @array
public Array getArray() throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
public void updateSettings(SQLConversionSettings settings) {
settings_ = settings;
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy