Package top.focess.qq.api.command

Class DataConverter<T>

java.lang.Object

top.focess.qq.api.command.DataConverter<T>

Type Parameters:

T - target type

Direct Known Subclasses:

ExceptionDataConverter, NullDataConverter

public abstract class DataConverter<T>
extends Object

This class used to convert String data to target T type data.

Field Summary

Fields

Modifier and Type	Field	Description
static DataConverter<Boolean>	BOOLEAN_DATA_CONVERTER	Convert the String argument to Boolean argument
static DataConverter<String>	DEFAULT_DATA_CONVERTER	Never convert it! Put them into DataCollection with their original values.
static DataConverter<Double>	DOUBLE_DATA_CONVERTER	Convert the String argument to Double argument
static java.util.function.Predicate<String>	DOUBLE_PREDICATE	It is a Predicate used to predicate a String is a Double
static DataConverter<Integer>	INTEGER_DATA_CONVERTER	Convert the String argument to Integer argument
static java.util.function.Predicate<String>	INTEGER_PREDICATE	It is a Predicate used to predicate a String is an Integer
static DataConverter<Long>	LONG_DATA_CONVERTER	Convert the String argument to Long argument
static java.util.function.Predicate<String>	LONG_PREDICATE	It is a Predicate used to predicate a String is a Long

Constructor Summary

Constructors

Constructor	Description
DataConverter()

Method Summary

Modifier and Type	Method	Description
protected abstract boolean	accept(String arg)	Indicate whether this String argument is this target type or not
protected abstract void	connect(DataCollection dataCollection, T arg)	Used to put data into the dataCollection
abstract T	convert(String arg)	Convert String argument to target argument
protected abstract Class<T>	getTargetClass()

Methods inherited from class java.lang.Object

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

Field Detail

INTEGER_PREDICATE

public static final java.util.function.Predicate<String> INTEGER_PREDICATE

It is a Predicate used to predicate a String is an Integer

DOUBLE_PREDICATE

public static final java.util.function.Predicate<String> DOUBLE_PREDICATE

It is a Predicate used to predicate a String is a Double

LONG_PREDICATE

public static final java.util.function.Predicate<String> LONG_PREDICATE

It is a Predicate used to predicate a String is a Long

DEFAULT_DATA_CONVERTER

public static final DataConverter<String> DEFAULT_DATA_CONVERTER

Never convert it! Put them into DataCollection with their original values.

INTEGER_DATA_CONVERTER

public static final DataConverter<Integer> INTEGER_DATA_CONVERTER

Convert the String argument to Integer argument

LONG_DATA_CONVERTER

public static final DataConverter<Long> LONG_DATA_CONVERTER

Convert the String argument to Long argument

DOUBLE_DATA_CONVERTER

public static final DataConverter<Double> DOUBLE_DATA_CONVERTER

Convert the String argument to Double argument

BOOLEAN_DATA_CONVERTER

public static final DataConverter<Boolean> BOOLEAN_DATA_CONVERTER

Convert the String argument to Boolean argument

Constructor Detail

DataConverter

public DataConverter()

Method Detail

accept

protected abstract boolean accept(String arg)

Indicate whether this String argument is this target type or not

Parameters:

arg - the target argument in String

Returns:

true if this String argument can convert to this target type, false otherwise

convert

public abstract T convert(String arg)

Convert String argument to target argument

Parameters:

arg - the target argument in String

Returns:

the target argument

connect

protected abstract void connect(DataCollection dataCollection,
                                T arg)

Used to put data into the dataCollection

Parameters:

dataCollection - where stores the data

arg - the target argument

See Also:

DataCollection.write(Class, Object)

getTargetClass

protected abstract Class<T> getTargetClass()