com.edorasware.commons.core.util.generics

Class GenericsUtils

java.lang.Object

com.edorasware.commons.core.util.generics.GenericsUtils

public final class GenericsUtils
extends Object

Provides utility methods related to Generics.

Method Summary

Modifier and Type	Method and Description
static <T> T	getTypeSafeValue(String entity, Object entityKey, Object value, Class<T> expectedValueType) Returns the given value cast to the the given type.
static <S> S	getTypeSafeValue(String entity, Object entityKey, Object value, com.google.common.reflect.TypeToken<S> expectedValueType) Returns the given value cast to the the given type.

Methods inherited from class java.lang.Object

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

Method Detail

getTypeSafeValue

public static <T> T getTypeSafeValue(String entity,
                                     Object entityKey,
                                     Object value,
                                     Class<T> expectedValueType)

Returns the given value cast to the the given type. An IllegalArgumentException is thrown in case the type case is not possible.

Type Parameters:

T - the type of the expected value

Parameters:

entity - the name of the type of entity to which the value belongs

entityKey - the entity key to which the value belongs

value - the value to convert

expectedValueType - the expected type of the value

Returns:

the value cast to the expected type

Throws:

IllegalArgumentException - thrown if the cast is not possible

getTypeSafeValue

public static <S> S getTypeSafeValue(String entity,
                                     Object entityKey,
                                     Object value,
                                     com.google.common.reflect.TypeToken<S> expectedValueType)

Returns the given value cast to the the given type. An IllegalArgumentException is thrown in case the type case is not possible.

Type Parameters:

S - the type of the expected value

Parameters:

entity - the name of the type of entity to which the value belongs

entityKey - the entity key to which the value belongs

value - the value to convert

expectedValueType - the expected type of the value

Returns:

the value cast to the expected type

Throws:

IllegalArgumentException - thrown if the cast is not possible