//$Id: TextType.java 4582 2004-09-25 11:22:20Z oneovthafew $
package org.hibernate.type;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import org.hibernate.HibernateException;
/**
* <tt>text</tt>: A type that maps an SQL CLOB to a Java String.
* @author Gavin King, Bertrand Renuart
*/
public class TextType extends ImmutableType {
public void set(PreparedStatement st, Object value, int index) throws HibernateException, SQLException {
String str = (String) value;
st.setCharacterStream( index, new StringReader(str), str.length() );
}
public Object get(ResultSet rs, String name) throws HibernateException, SQLException {
// Retrieve the value of the designated column in the current row of this
// ResultSet object as a java.io.Reader object
Reader charReader = rs.getCharacterStream(name);
// if the corresponding SQL value is NULL, the reader we got is NULL as well
if (charReader==null) return null;
// Fetch Reader content up to the end - and put characters in a StringBuffer
StringBuffer sb = new StringBuffer();
try {
char[] buffer = new char[2048];
while (true) {
int amountRead = charReader.read(buffer, 0, buffer.length);
if ( amountRead == -1 ) break;
sb.append(buffer, 0, amountRead);
}
}
catch (IOException ioe) {
throw new HibernateException( "IOException occurred reading text", ioe );
}
finally {
try {
charReader.close();
}
catch (IOException e) {
throw new HibernateException( "IOException occurred closing stream", e );
}
}
// Return StringBuffer content as a large String
return sb.toString();
}
public int sqlType() {
return Types.CLOB; //or Types.LONGVARCHAR?
}
public Class getReturnedClass() {
return String.class;
}
public String getName() { return "text"; }
public String toString(Object val) {
return (String) val;
}
public Object fromStringValue(String xml) {
return xml;
}
}
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