Add a type mapper callback for java.net.URL
-------------------------------------------
Key: IBATIS-299
URL: http://issues.apache.org/jira/browse/IBATIS-299
Project: iBatis for Java
Type: Wish
Versions: 2.1.7
Reporter: Ken Weiner
It would be nice if iBATIS came with a TypeHandlerCallback implementation for
mapping URL object properties to their String representation stored in a
database field. Here is some code that could be used to implement this:
package com.ibatis.sqlmap.client.extensions;
import java.net.MalformedURLException;
import java.net.URL;
import java.sql.SQLException;
import java.sql.Types;
/**
* An iBATIS type handler callback for java.net.URLs that are mapped to
* Strings in the database. If a URL cannot be constructed based on the
* String, then the URL will be set to <code>null</code>.
* <p>
* @author Ken Weiner
*/
public class UrlTypeHandlerCallback implements TypeHandlerCallback {
public Object getResult(ResultGetter getter) throws SQLException {
String value = getter.getString();
if (getter.wasNull()) {
return null;
}
return this.valueOf(value);
}
public void setParameter(ParameterSetter setter, Object parameter) throws
SQLException {
if (parameter == null) {
setter.setNull(Types.VARCHAR);
} else {
URL url = (URL) parameter;
setter.setString(url.toExternalForm());
}
}
public Object valueOf(String s) {
URL url;
try {
url = new URL(s);
} catch (MalformedURLException e) {
url = null;
}
return url;
}
}
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