001: /*
002: * $Id: AbstractAxionClob.java,v 1.7 2003/07/10 16:34:34 rwald Exp $
003: * =======================================================================
004: * Copyright (c) 2002-2003 Axion Development Team. All rights reserved.
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * 1. Redistributions of source code must retain the above
011: * copyright notice, this list of conditions and the following
012: * disclaimer.
013: *
014: * 2. Redistributions in binary form must reproduce the above copyright
015: * notice, this list of conditions and the following disclaimer in
016: * the documentation and/or other materials provided with the
017: * distribution.
018: *
019: * 3. The names "Tigris", "Axion", nor the names of its contributors may
020: * not be used to endorse or promote products derived from this
021: * software without specific prior written permission.
022: *
023: * 4. Products derived from this software may not be called "Axion", nor
024: * may "Tigris" or "Axion" appear in their names without specific prior
025: * written permission.
026: *
027: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
028: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
029: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
030: * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
031: * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
032: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
033: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
034: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
035: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
036: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
037: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
038: * =======================================================================
039: */
040:
041: package org.axiondb.jdbc;
042:
043: import java.io.InputStream;
044: import java.io.OutputStream;
045: import java.io.OutputStreamWriter;
046: import java.io.Reader;
047: import java.io.UnsupportedEncodingException;
048: import java.io.Writer;
049: import java.sql.Clob;
050: import java.sql.SQLException;
051:
052: import org.axiondb.util.ExceptionConverter;
053:
054: /**
055: * Abstract base implementation of {@link AxionClob}.
056: *
057: * @version $Revision: 1.7 $ $Date: 2003/07/10 16:34:34 $
058: * @author Rodney Waldhoff
059: * @author Morgan Delegrange
060: */
061: public abstract class AbstractAxionClob implements AxionClob {
062:
063: public InputStream getAsciiStream() throws SQLException {
064: throw new SQLException("Unsupported");
065: }
066:
067: public Reader getCharacterStream() throws SQLException {
068: throw new SQLException("Unsupported");
069: }
070:
071: public String getSubString(long pos, int len) throws SQLException {
072: throw new SQLException("Unsupported");
073: }
074:
075: public long length() throws SQLException {
076: throw new SQLException("Unsupported");
077: }
078:
079: public long position(Clob searchstr, long start)
080: throws SQLException {
081: throw new SQLException("Unsupported");
082: }
083:
084: public long position(String searchstr, long start)
085: throws SQLException {
086: throw new SQLException("Unsupported");
087: }
088:
089: public OutputStream setAsciiStream(long pos) throws SQLException {
090: throw new SQLException("Unsupported");
091: }
092:
093: /** @see #setCharacterStream */
094: public abstract OutputStream setUtf8Stream(long pos)
095: throws SQLException;
096:
097: //TODO: since there is byte to character conversion,
098: //the pos argument will not work correctly for non-zero
099: //values - fix me
100: public Writer setCharacterStream(long pos) throws SQLException {
101: try {
102: return new OutputStreamWriter(setUtf8Stream(pos), "UTF8");
103: } catch (UnsupportedEncodingException e) {
104: throw ExceptionConverter.convert(e);
105: }
106: }
107:
108: /** Invokes {@link #setString(long,String,int,int) setString(pos,str,0,str.length())} */
109: public int setString(long pos, String str) throws SQLException {
110: return setString(pos, str, 0, str.length());
111: }
112:
113: public int setString(long pos, String str, int offset, int length)
114: throws SQLException {
115: throw new SQLException("Unsupported");
116: }
117:
118: public void truncate(long length) throws SQLException {
119: throw new SQLException("Unsupported");
120: }
121: }
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