Package de.gebit.integrity.parameter.conversion

Class Conversion<FROM,TO>

java.lang.Object

de.gebit.integrity.parameter.conversion.Conversion<FROM,TO>

Type Parameters:

FROM - the source type

TO - the target type

Direct Known Subclasses:

AbstractBooleanToString, AbstractBooleanValueToString, AbstractCalendarToString, AbstractCharacterToString, AbstractDateAndTimeValueToString, AbstractDateToString, AbstractDateValueToString, AbstractDecimalValueToString, AbstractEnumToString, AbstractEnumValueToString, AbstractFormattedStringToString, AbstractIntegerValueToString, AbstractJavaConstantConversion, AbstractMapToString, AbstractNestedObjectToString, AbstractNumberToString, AbstractObjectToString, AbstractRegexValueToString, AbstractStringToString, AbstractStringValueToString, AbstractTimeValueToString, BigDecimalToBigDecimal, BigIntegerToBigDecimal, BigIntegerToBigInteger, BooleanToBoolean, BooleanValueToBoolean, ByteToBigDecimal, ByteToByte, CalendarToDate, CalendarToInstant, CalendarToLocalDate, CalendarToLocalDateTime, CalendarToLocalTime, CalendarToSQLDate, CalendarToSQLTime, CalendarToTimestamp, CalendarToZonedDateTime, CharacterToBigDecimal, CharacterToBigInteger, CharacterToCharacter, DateAndTimeValueToCalendar, DateAndTimeValueToDate, DateAndTimeValueToInstant, DateAndTimeValueToLocalDate, DateAndTimeValueToLocalDateTime, DateAndTimeValueToLocalTime, DateAndTimeValueToSQLDate, DateAndTimeValueToSQLTime, DateAndTimeValueToTimestamp, DateAndTimeValueToZonedDateTime, DateToCalendar, DateToSQLDate, DateToSQLTime, DateToTimestamp, DateValueToCalendar, DateValueToDate, DateValueToInstant, DateValueToLocalDate, DateValueToLocalDateTime, DateValueToSQLDate, DateValueToSQLTime, DateValueToTimestamp, DateValueToZonedDateTime, DecimalValueToBigDecimal, DecimalValueToCharacter, DecimalValueToDouble, DecimalValueToFloat, DecimalValueToNumber, DoubleToBigDecimal, DoubleToDouble, EmptyValueToEmptyString, EmptyValueToFormattedString, EnumValueToEnumConstant, FloatToBigDecimal, FloatToFloat, InexistentValueToFormattedString, InexistentValueToInexistentString, IntegerToBigDecimal, IntegerToInteger, IntegerValueToBigDecimal, IntegerValueToBigInteger, IntegerValueToByte, IntegerValueToCharacter, IntegerValueToDouble, IntegerValueToFloat, IntegerValueToInteger, IntegerValueToLong, IntegerValueToNumber, IntegerValueToShort, LongToBigDecimal, LongToLong, MapToBean, MapToMap, NestedObjectToBean, NestedObjectToMap, NullValueToNull, NumberToBigInteger, NumberToByte, NumberToCharacter, NumberToDouble, NumberToFloat, NumberToInteger, NumberToLong, NumberToShort, ObjectToMap, ObjectToObject, OptionalToContainedObject, OptionalToFormattedString, PatternToPattern, RegexValueToPattern, ShortToBigDecimal, ShortToShort, SQLDateToCalendar, SQLDateToTimestamp, SQLTimeToCalendar, SQLTimeToTimestamp, StringToBigDecimal, StringToBigInteger, StringToByte, StringToCharacter, StringToDouble, StringToEnumConstant, StringToFloat, StringToInteger, StringToLong, StringToNumber, StringToPattern, StringToShort, StringValueToBigDecimal, StringValueToBigInteger, StringValueToBoolean, StringValueToByte, StringValueToCharacter, StringValueToDouble, StringValueToEnumConstant, StringValueToFloat, StringValueToInteger, StringValueToLong, StringValueToNumber, StringValueToPattern, StringValueToShort, TimestampToCalendar, TimeValueToCalendar, TimeValueToDate, TimeValueToInstant, TimeValueToLocalDateTime, TimeValueToLocalTime, TimeValueToSQLDate, TimeValueToSQLTime, TimeValueToTimestamp, TimeValueToZonedDateTime, TypedNestedObjectToBean, TypedNestedObjectToFormattedString, TypedNestedObjectToMap, TypedNestedObjectToString

public abstract class Conversion<FROM,TO>
extends java.lang.Object

A Conversion defines a transformation from one type into another.

Author:

Rene Schneider - initial API and implementation

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Conversion.Priority	Add this annotation to a Conversion implementation to set the priority of this conversion.

Constructor Summary

Constructors

Constructor	Description
Conversion()

Method Summary

Modifier and Type	Method	Description
abstract TO	convert(FROM aSource, java.lang.Class<? extends TO> aTargetType, ConversionContext aConversionContext)	Performs the conversion.
protected java.lang.Object	convertValueRecursive(java.lang.Class<?> aTargetType, java.lang.Class<?> aParameterizedType, java.lang.Object aValue, ConversionContext aConversionContext)	Recursively converts the given value to the defined target type.
protected FormattedString[]	convertValueToFormattedStringArrayRecursive(java.lang.Object aValue, ConversionContext aConversionContext)	Recursively converts the given value to a string array.
void	setVisitedObjects(java.util.Set<java.lang.Object> someVisitedObjects)

Methods inherited from class java.lang.Object

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

Constructor Detail

Conversion

public Conversion()

Method Detail

convert

public abstract TO convert(FROM aSource,
                           java.lang.Class<? extends TO> aTargetType,
                           ConversionContext aConversionContext)
                    throws ConversionFailedException

Performs the conversion.

Parameters:

aSource - the source object to convert

aTargetType - TODO

aConversionContext - controls some conversion parameters and rules; may be null if the default ConversionContext values shall be used

Returns:

the converted object

Throws:

ConversionFailedException - in case of conversion errors

setVisitedObjects

public void setVisitedObjects(java.util.Set<java.lang.Object> someVisitedObjects)

convertValueRecursive

protected java.lang.Object convertValueRecursive(java.lang.Class<?> aTargetType,
                                                 java.lang.Class<?> aParameterizedType,
                                                 java.lang.Object aValue,
                                                 ConversionContext aConversionContext)
                                          throws ParameterUtil.UnresolvableVariableException,
                                                 java.lang.ClassNotFoundException,
                                                 UnexecutableException,
                                                 java.lang.InstantiationException

Recursively converts the given value to the defined target type. This method provides implicit protection against endless recursion loops.

Parameters:

aTargetType - the target type

aParameterizedType - the parameterized type in case of generics

aValue - the value to convert

aConversionContext - some parameters controlling the conversion (if null, a default context is used)

Returns:

the converted value

Throws:

ParameterUtil.UnresolvableVariableException

java.lang.ClassNotFoundException

UnexecutableException

java.lang.InstantiationException

convertValueToFormattedStringArrayRecursive

protected FormattedString[] convertValueToFormattedStringArrayRecursive(java.lang.Object aValue,
                                                                        ConversionContext aConversionContext)

Recursively converts the given value to a string array. This method provides implicit protection against endless recursion loops.

Parameters:

aValue - the value to convert

aConversionContext - some parameters controlling the conversion (if null, a default context is used)

Returns:

the converted string array