Class ReflectionHelper
- java.lang.Object
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- org.eclipse.collections.impl.utility.internal.ReflectionHelper
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public final class ReflectionHelper extends java.lang.Object
A utility/helper class for working with Classes and Reflection.
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Field Summary
Fields Modifier and Type Field Description static java.lang.Class[]
EMPTY_CLASS_ARRAY
Deprecated.in 2.0.private static ImmutableMap<java.lang.Class<?>,java.lang.Class<?>>
PRIMATIVES_TO_WRAPPERS
private static ImmutableMap<java.lang.Class<?>,java.lang.Class<?>>
WRAPPER_TO_PRIMATIVES
Mapping of iterator wrapper classes to iterator types
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Constructor Summary
Constructors Modifier Constructor Description private
ReflectionHelper()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static <T> java.lang.reflect.Constructor<T>
getConstructor(java.lang.Class<T> instantiable, java.lang.Class<?>... constructorParameterTypes)
static boolean
hasDefaultConstructor(java.lang.Class<?> aClass)
static <T> T
newInstance(java.lang.Class<T> aClass)
This method may return null if the call to create a newInstance() fails.static <T> T
newInstance(java.lang.reflect.Constructor<T> constructor, java.lang.Object... constructorArguments)
static boolean
parameterTypesMatch(java.lang.Class<?>[] candidateParamTypes, java.lang.Class<?>... desiredParameterTypes)
private static <T> java.lang.reflect.Constructor<T>
searchForConstructor(java.lang.Class<T> instantiable, java.lang.Class<?>... constructorParameterTypes)
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Field Detail
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EMPTY_CLASS_ARRAY
@Deprecated public static final java.lang.Class[] EMPTY_CLASS_ARRAY
Deprecated.in 2.0. Will become private in a future version.
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WRAPPER_TO_PRIMATIVES
private static final ImmutableMap<java.lang.Class<?>,java.lang.Class<?>> WRAPPER_TO_PRIMATIVES
Mapping of iterator wrapper classes to iterator types
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PRIMATIVES_TO_WRAPPERS
private static final ImmutableMap<java.lang.Class<?>,java.lang.Class<?>> PRIMATIVES_TO_WRAPPERS
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Method Detail
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getConstructor
public static <T> java.lang.reflect.Constructor<T> getConstructor(java.lang.Class<T> instantiable, java.lang.Class<?>... constructorParameterTypes)
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searchForConstructor
private static <T> java.lang.reflect.Constructor<T> searchForConstructor(java.lang.Class<T> instantiable, java.lang.Class<?>... constructorParameterTypes)
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parameterTypesMatch
public static boolean parameterTypesMatch(java.lang.Class<?>[] candidateParamTypes, java.lang.Class<?>... desiredParameterTypes)
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newInstance
public static <T> T newInstance(java.lang.reflect.Constructor<T> constructor, java.lang.Object... constructorArguments)
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newInstance
public static <T> T newInstance(java.lang.Class<T> aClass)
This method may return null if the call to create a newInstance() fails.
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hasDefaultConstructor
public static boolean hasDefaultConstructor(java.lang.Class<?> aClass)
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