Package eu.ill.preql.parser

Class ValueParsers

java.lang.Object

eu.ill.preql.parser.ValueParsers

public class ValueParsers
extends Object

Value parsers to coerce expression parameters into their respective attribute type

Author:

Jamie Hall

Field Summary

Fields

Modifier and Type	Field	Description
protected static Map<Object,ValueParser<?>>	parsers

Constructor Summary

Constructors

Constructor	Description
ValueParsers()

Method Summary

Modifier and Type	Method	Description
ValueParser<?>	getParser(Class<?> typeKey, Object value)	Get a value parser for a given object type
Map<Object,ValueParser<?>>	getParsers()	Get all registered parses
static void	registerParser(ValueParser<?> parser)	Add a new value parser
static void	registerParser(Object key, ValueParser<?> parser)	Add a new value parser
static void	unregisterParser(Object key)	Remove a value parser

Methods inherited from class java.lang.Object

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

Field Detail

parsers

protected static final Map<Object,ValueParser<?>> parsers

Constructor Detail

ValueParsers

public ValueParsers()

Method Detail

registerParser

public static void registerParser(Object key,
                                  ValueParser<?> parser)

Add a new value parser

Parameters:

key - The object type

parser - The parser to be added

registerParser

public static void registerParser(ValueParser<?> parser)

Add a new value parser

Parameters:

parser - The parser to be added

unregisterParser

public static void unregisterParser(Object key)

Remove a value parser

Parameters:

key - The value parser to be removed

getParsers

public Map<Object,ValueParser<?>> getParsers()

Get all registered parses

Returns:

all of the registered parsers

getParser

public ValueParser<?> getParser(Class<?> typeKey,
                                Object value)

Get a value parser for a given object type

Parameters:

typeKey - The type of object

value - The parameter value

Returns:

the parser