com.landawn.abacus.type.ClobReaderType Maven / Gradle / Ivy
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A general programming library in Java/Android. It's easy to learn and simple to use with concise and powerful APIs.
/*
* Copyright (C) 2015 HaiYang Li
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package com.landawn.abacus.type;
import java.io.Reader;
import java.sql.CallableStatement;
import java.sql.Clob;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
*
* @author Haiyang Li
* @since 0.8
*/
public class ClobReaderType extends ReaderType {
public static final String CLOB_READER = "ClobReader";
ClobReaderType() {
super(CLOB_READER);
}
/**
*
* @param rs
* @param columnIndex
* @return
* @throws SQLException the SQL exception
*/
@Override
public Reader get(ResultSet rs, int columnIndex) throws SQLException {
final Clob clob = rs.getClob(columnIndex);
return clob2Reader(clob);
}
/**
*
* @param rs
* @param columnLabel
* @return
* @throws SQLException the SQL exception
*/
@Override
public Reader get(ResultSet rs, String columnLabel) throws SQLException {
return clob2Reader(rs.getClob(columnLabel));
}
/**
*
* @param stmt
* @param columnIndex
* @param x
* @throws SQLException the SQL exception
*/
@Override
public void set(PreparedStatement stmt, int columnIndex, Reader x) throws SQLException {
stmt.setClob(columnIndex, x);
}
/**
*
* @param stmt
* @param parameterName
* @param x
* @throws SQLException the SQL exception
*/
@Override
public void set(CallableStatement stmt, String parameterName, Reader x) throws SQLException {
stmt.setClob(parameterName, x);
}
/**
*
* @param stmt
* @param columnIndex
* @param x
* @param sqlTypeOrLength
* @throws SQLException the SQL exception
*/
@Override
public void set(PreparedStatement stmt, int columnIndex, Reader x, int sqlTypeOrLength) throws SQLException {
stmt.setClob(columnIndex, x, sqlTypeOrLength);
}
/**
*
* @param stmt
* @param parameterName
* @param x
* @param sqlTypeOrLength
* @throws SQLException the SQL exception
*/
@Override
public void set(CallableStatement stmt, String parameterName, Reader x, int sqlTypeOrLength) throws SQLException {
stmt.setClob(parameterName, x, sqlTypeOrLength);
}
/**
* Clob 2 reader.
*
* @param clob
* @return
* @throws SQLException the SQL exception
*/
static Reader clob2Reader(Clob clob) throws SQLException {
if (clob != null) {
return clob.getCharacterStream();
}
return null;
}
}