ch.jalu.configme.beanmapper.leafvaluehandler

Class BigNumberLeafValueHandler

java.lang.Object

ch.jalu.configme.beanmapper.leafvaluehandler.AbstractLeafValueHandler

ch.jalu.configme.beanmapper.leafvaluehandler.BigNumberLeafValueHandler

All Implemented Interfaces:

LeafValueHandler

public class BigNumberLeafValueHandler
extends AbstractLeafValueHandler

Number handler for 'Big' types that have arbitrary precision (BigInteger, BigDecimal) and should be represented as strings in the config. See also NumberLeafValueHandler.

Constructor Summary

Constructors

Constructor and Description
BigNumberLeafValueHandler()

Method Summary

Modifier and Type	Method and Description
protected Object	convert(Class<?> clazz, Object value)
protected Object	fromNumber(Class<?> targetClass, Number value) Creates a BigInteger or BigDecimal value from the given number value, if possible.
protected Object	fromString(Class<?> targetClass, String value) Creates a BigInteger or BigDecimal value from the given string value, if possible.
Object	toExportValue(Object value) Converts the given value to a type more suitable for exporting.

Methods inherited from class ch.jalu.configme.beanmapper.leafvaluehandler.AbstractLeafValueHandler

convert

Methods inherited from class java.lang.Object

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

Constructor Detail

BigNumberLeafValueHandler

public BigNumberLeafValueHandler()

Method Detail

convert

protected Object convert(Class<?> clazz,
                         Object value)

Specified by:

convert in class AbstractLeafValueHandler

toExportValue

public Object toExportValue(Object value)

Description copied from interface: LeafValueHandler

Converts the given value to a type more suitable for exporting. Used by the mapper in when Property.toExportValue(T) is called on a bean property. Returns null if the leaf value handler cannot handle the value.

Return MapperImpl.RETURN_NULL to signal that null should be used as the export value (returning null itself means this leaf value handler cannot handle it).

Parameters:

value - the value to convert to an export value, if possible

Returns:

value to use in the export, or null if not applicable

fromString

@Nullable
protected Object fromString(Class<?> targetClass,
                                      String value)

Creates a BigInteger or BigDecimal value from the given string value, if possible.

Parameters:

targetClass - the target class to convert to (can only be BigInteger or BigDecimal)

value - the value to convert

Returns:

BigInteger or BigDecimal as defined by the target class, or null if no conversion was possible

fromNumber

protected Object fromNumber(Class<?> targetClass,
                            Number value)

Creates a BigInteger or BigDecimal value from the given number value, if possible.

Parameters:

targetClass - the target class to convert to (can only be BigInteger or BigDecimal)

value - the value to convert

Returns:

BigInteger or BigDecimal as defined by the target class