Package com.ibatis.sqlmap.engine.type

Class BlobTypeHandlerCallback

java.lang.Object

com.ibatis.sqlmap.engine.type.BlobTypeHandlerCallback

All Implemented Interfaces:

TypeHandlerCallback

public class BlobTypeHandlerCallback
extends Object
implements TypeHandlerCallback

The Class BlobTypeHandlerCallback.

Constructor Summary

Constructors

Constructor	Description
BlobTypeHandlerCallback()

Method Summary

Modifier and Type	Method	Description
Object	getResult(ResultGetter getter)	Performs processing on a value before after it has been retrieved from a ResultSet.
void	setParameter(ParameterSetter setter, Object parameter)	Performs processing on a value before it is used to set the parameter of a PreparedStatement.
Object	valueOf(String s)	Casts the string representation of a value into a type recognized by this type handler.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

BlobTypeHandlerCallback

public BlobTypeHandlerCallback()

Method Details

getResult

public Object getResult(ResultGetter getter)
                 throws SQLException

Description copied from interface: TypeHandlerCallback

Performs processing on a value before after it has been retrieved from a ResultSet.

Specified by:

getResult in interface TypeHandlerCallback

Parameters:

getter - The interface for getting the value from the ResultSet.

Returns:

The processed value.

Throws:

SQLException - If any error occurs.

setParameter

public void setParameter(ParameterSetter setter,
 Object parameter)
                  throws SQLException

Description copied from interface: TypeHandlerCallback

Performs processing on a value before it is used to set the parameter of a PreparedStatement.

Specified by:

setParameter in interface TypeHandlerCallback

Parameters:

setter - The interface for setting the value on the PreparedStatement.

parameter - The value to be set.

Throws:

SQLException - If any error occurs.

valueOf

public Object valueOf(String s)

Description copied from interface: TypeHandlerCallback

Casts the string representation of a value into a type recognized by this type handler. This method is used to translate nullValue values into types that can be appropriately compared. If your custom type handler cannot support nullValues, or if there is no reasonable string representation for this type (e.g. File type), you can simply return the String representation as it was passed in. It is not recommended to return null, unless null was passed in.

Specified by:

valueOf in interface TypeHandlerCallback

Parameters:

s - A string representation of a valid value for this type.

Returns:

One of the following:

1. the casted repersentation of the String value,
2. the string as is,
3. null, only if null was passed in.