BlobByteArrayMapping.java

package jef.database.dialect.type;

import java.io.IOException;
import java.io.InputStream;
import java.sql.Blob;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;

import jef.database.dialect.DatabaseDialect;
import jef.database.jdbc.result.IResultSet;
import jef.tools.IOUtils;

public class BlobByteArrayMapping extends AColumnMapping{
	
	public Object jdbcSet(PreparedStatement st, Object value, int index, DatabaseDialect dialect) throws SQLException {
		if(value==null){
			st.setNull(index, dialect.getImplementationSqlType(Types.BLOB));
		}else{
			byte[] bb=(byte[])value;
			st.setBytes(index, bb);
//			st.setBinaryStream(index, new ByteArrayInputStream(bb),(long)bb.length);
		}
		return value;
	}
	
	public void jdbcUpdate(ResultSet rs,String column, Object value, DatabaseDialect dialect) throws SQLException {
		byte[] bb=(byte[])value;
		rs.updateBytes(column, bb);
	}

	public int getSqlType() {
		return java.sql.Types.BLOB;
	}

	@Override
	protected String getSqlExpression(Object value, DatabaseDialect profile) {
		throw new UnsupportedOperationException();
	}

	public boolean isLob() {
		return true;
	}

	public Object jdbcGet(IResultSet rs, int n) throws SQLException {
		Object obj=rs.getObject(n);
		if(obj==null)return null;
		if(obj.getClass().isArray()){
			return obj;
		}
		Blob blob=(Blob) obj;
		InputStream in = blob.getBinaryStream();
		try {
			return IOUtils.toByteArray(in);
		} catch (IOException e) {
			throw new IllegalStateException(e);
		}
	}

	@Override
	protected Class<?> getDefaultJavaType() {
		return byte[].class;
	}
}