org.yarnandtail.andhow.valuetype

Class DblType

java.lang.Object

org.yarnandtail.andhow.valuetype.BaseValueType<Double>

org.yarnandtail.andhow.valuetype.DblType

All Implemented Interfaces:

ValueType<Double>

public class DblType
extends BaseValueType<Double>

Metadata and parsing for configuration Properties of the Double type.

This class is threadsafe and uses a singleton pattern to prevent multiple instances, since all users can safely share the same instance.

Field Summary

Fields inherited from class org.yarnandtail.andhow.valuetype.BaseValueType

clazzType

Method Summary

Modifier and Type	Method and Description
Double	cast(Object o) Attempt to cast the passed object to the generic type T.
static DblType	get() Deprecated. since 0.4.1. Use instance() instead
static DblType	instance()
Double	parse(String sourceValue) Parses a String to a Double.

Methods inherited from class org.yarnandtail.andhow.valuetype.BaseValueType

getDestinationType, isParsable, toString

Methods inherited from class java.lang.Object

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

Method Detail

get

@Deprecated
public static DblType get()

Deprecated. since 0.4.1. Use instance() instead

Returns:

An instance of the DblType()

instance

public static DblType instance()

Returns:

An instance of the Double

parse

public Double parse(String sourceValue)
             throws ParsingException

Parses a String to a Double. The String should already be trimmed.

Parsing is done via Double.parseDouble(String).

Parameters:

sourceValue - The source string, which should already be trimmed and may be null

Returns:

The parsed value, or null if null is passed.

Throws:

ParsingException - if unparsable.

cast

public Double cast(Object o)
            throws RuntimeException

Description copied from interface: ValueType

Attempt to cast the passed object to the generic type T. AndHow uses this internally to cast values known to already be of type T, but were stored in a generic way. If used for unknown types that are not castable to T, it will throw a RuntimeException, though this should never happen unless used by application code.

Returns:

Throws:

RuntimeException