net.sf.layoutParser.processor

Class EntryProcessor<T extends EntryTO<?>>

java.lang.Object

net.sf.layoutParser.processor.EntryProcessor<T>

Type Parameters:

T - The type of EntryTO extension that the processor will work with.

Direct Known Subclasses:

ItemProcessor, ListProcessor

public abstract class EntryProcessor<T extends EntryTO<?>>
extends Object

Abstract delegation pattern to process any bean that extends EntryTO.
Thus far, only ItemTO and ListTO extends EntryTO so
only ItemProcessor and ListProcessor are concrete implementations of this class.

Since:

1.0

Author:

Mário Valentim Junior

Field Summary

Fields

Modifier and Type	Field and Description
protected T	entry EntryTO that the subclass will work with. This object is initialised when the getInstance(EntryTO) is called.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EntryProcessor(T entry) Initialises the entry object.

Method Summary

Methods

Modifier and Type	Method and Description
abstract String	format(Object field) Format's the object into positional data following the processor entry properties.
static EntryProcessor<?>	getInstance(EntryTO<?> entry) Instantiation method that resolves which type of concrete processor should be retrieved. If the entry passed to the method is a instanceof ItemTO then a ItemProcessor should be retrieved, otherwise a ListProcessor is returned.
abstract Object	parse(String data) Parse's the positional data into a java.lang.Object following the processor entry properties.

Methods inherited from class java.lang.Object

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

Field Detail

entry

protected final T extends EntryTO<?> entry

EntryTO that the subclass will work with.
This object is initialised when the getInstance(EntryTO) is called.

Constructor Detail

EntryProcessor

protected EntryProcessor(T entry)

Initialises the entry object.

Parameters:

entry - Object that the processor will use to parse or format data.

Method Detail

getInstance

public static EntryProcessor<?> getInstance(EntryTO<?> entry)
                                     throws LayoutException

Instantiation method that resolves which type of concrete processor should be retrieved.
If the entry passed to the method is a instanceof ItemTO then a ItemProcessor
should be retrieved, otherwise a ListProcessor is returned.

Parameters:

entry - The entry that the concrete processor will work with.

Returns:

A new instance of the concrete processor.

Throws:

LayoutException - Please refer to ListProcessor.ListProcessor(ListTO)

parse

public abstract Object parse(String data)
                      throws MalformedInputException

Parse's the positional data into a java.lang.Object following the processor entry properties.

Parameters:

data - Textual raw data to be parsed.

Returns:

A object that represents the EntryTO.getType().

Throws:

MalformedInputException - In case there's a problem parsing the data.

format

public abstract String format(Object field)
                       throws MalformedOutputException

Format's the object into positional data following the processor entry properties.

Parameters:

field - The object that should be parsed

Returns:

The block of positional data representing the field

Throws:

MalformedOutputException - In case there's a problem formating the field into a positional data string