org.apache.brooklyn.util.javalang.coerce

Class EnumTypeCoercions

java.lang.Object

org.apache.brooklyn.util.javalang.coerce.EnumTypeCoercions

public class EnumTypeCoercions
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
EnumTypeCoercions()

Method Summary

Modifier and Type	Method and Description
static <E extends java.lang.Enum<E>> com.google.common.base.Function<java.lang.String,E>	stringToEnum(java.lang.Class<E> type, E defaultValue) Type coercion function for enums.
static <T> com.google.common.base.Function<java.lang.String,T>	stringToEnumUntyped(java.lang.Class<? super T> type, T defaultValue)
static <E extends java.lang.Enum<E>> Maybe<E>	tryCoerce(java.lang.String input, java.lang.Class<E> targetType)
static <T> Maybe<T>	tryCoerceUntyped(java.lang.String input, java.lang.Class<T> targetType)

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumTypeCoercions

public EnumTypeCoercions()

Method Detail

stringToEnum

public static <E extends java.lang.Enum<E>> com.google.common.base.Function<java.lang.String,E> stringToEnum(java.lang.Class<E> type,
                                                                                                             @Nullable
                                                                                                             E defaultValue)

Type coercion function for enums.

Tries to convert the string to CaseFormat.UPPER_UNDERSCORE first, handling all of the different format possibilites. Failing that, it tries a case-insensitive comparison with the valid enum values.

Returns defaultValue if the string cannot be converted.

See Also:

TypeCoercions#coerce(Object, Class), Enum.valueOf(Class, String)

stringToEnumUntyped

public static <T> com.google.common.base.Function<java.lang.String,T> stringToEnumUntyped(java.lang.Class<? super T> type,
                                                                                          @Nullable
                                                                                          T defaultValue)

tryCoerceUntyped

public static <T> Maybe<T> tryCoerceUntyped(java.lang.String input,
                                            java.lang.Class<T> targetType)

tryCoerce

public static <E extends java.lang.Enum<E>> Maybe<E> tryCoerce(java.lang.String input,
                                                               java.lang.Class<E> targetType)