com.alibaba.druid.support.spring.DruidLobHandler Maven / Gradle / Ivy
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An JDBC datasource implementation.
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
*
* 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.alibaba.druid.support.spring;
import java.io.InputStream;
import java.io.Reader;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.springframework.jdbc.support.lob.AbstractLobHandler;
import org.springframework.jdbc.support.lob.LobCreator;
public class DruidLobHandler extends AbstractLobHandler {
public byte[] getBlobAsBytes(ResultSet rs, int columnIndex) throws SQLException {
Blob blob = rs.getBlob(columnIndex);
if (blob == null) {
return null;
}
return blob.getBytes(1, (int) blob.length());
}
public InputStream getBlobAsBinaryStream(ResultSet rs, int columnIndex) throws SQLException {
Blob blob = rs.getBlob(columnIndex);
if (blob == null) {
return null;
}
return blob.getBinaryStream();
}
public String getClobAsString(ResultSet rs, int columnIndex) throws SQLException {
Clob clob = rs.getClob(columnIndex);
if (clob == null) {
return null;
}
return clob.getSubString(1, (int) clob.length());
}
public InputStream getClobAsAsciiStream(ResultSet rs, int columnIndex) throws SQLException {
Clob clob = rs.getClob(columnIndex);
if (clob == null) {
return null;
}
return clob.getAsciiStream();
}
public Reader getClobAsCharacterStream(ResultSet rs, int columnIndex) throws SQLException {
Clob clob = rs.getClob(columnIndex);
if (clob == null) {
return null;
}
return clob.getCharacterStream();
}
@Override
public LobCreator getLobCreator() {
return new DruidLobCreator();
}
}