Package org.elasticsearch.common.inject.util

Class Types

java.lang.Object
org.elasticsearch.common.inject.util.Types
public final class Types
extends java.lang.Object
Static methods for working with types.
Since:
2.0

  • Method Summary

    Modifier and Type Method Description
    static java.lang.reflect.GenericArrayType arrayOf​(java.lang.reflect.Type componentType)
    Returns an array type whose elements are all instances of componentType.
    static java.lang.reflect.ParameterizedType listOf​(java.lang.reflect.Type elementType)
    Returns a type modelling a List whose elements are of type elementType.
    static java.lang.reflect.ParameterizedType mapOf​(java.lang.reflect.Type keyType, java.lang.reflect.Type valueType)
    Returns a type modelling a Map whose keys are of type keyType and whose values are of type valueType.
    static java.lang.reflect.ParameterizedType newParameterizedType​(java.lang.reflect.Type rawType, java.lang.reflect.Type... typeArguments)
    Returns a new parameterized type, applying typeArguments to rawType.
    static java.lang.reflect.ParameterizedType newParameterizedTypeWithOwner​(java.lang.reflect.Type ownerType, java.lang.reflect.Type rawType, java.lang.reflect.Type... typeArguments)
    Returns a new parameterized type, applying typeArguments to rawType and enclosed by ownerType.
    static java.lang.reflect.ParameterizedType providerOf​(java.lang.reflect.Type providedType)
    Returns a type modelling a Provider that provides elements of type elementType.
    static java.lang.reflect.ParameterizedType setOf​(java.lang.reflect.Type elementType)
    Returns a type modelling a Set whose elements are of type elementType.
    static java.lang.reflect.WildcardType subtypeOf​(java.lang.reflect.Type bound)
    Returns a type that represents an unknown type that extends bound.
    static java.lang.reflect.WildcardType supertypeOf​(java.lang.reflect.Type bound)
    Returns a type that represents an unknown supertype of bound.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • newParameterizedType

      public static java.lang.reflect.ParameterizedType newParameterizedType​(java.lang.reflect.Type rawType, java.lang.reflect.Type... typeArguments)
      Returns a new parameterized type, applying typeArguments to rawType. The returned type does not have an owner type.
      Returns:
      a parameterized type.

    • newParameterizedTypeWithOwner

      public static java.lang.reflect.ParameterizedType newParameterizedTypeWithOwner​(java.lang.reflect.Type ownerType, java.lang.reflect.Type rawType, java.lang.reflect.Type... typeArguments)
      Returns a new parameterized type, applying typeArguments to rawType and enclosed by ownerType.
      Returns:
      a parameterized type.

    • arrayOf

      public static java.lang.reflect.GenericArrayType arrayOf​(java.lang.reflect.Type componentType)
      Returns an array type whose elements are all instances of componentType.
      Returns:
      a generic array type.

    • subtypeOf

      public static java.lang.reflect.WildcardType subtypeOf​(java.lang.reflect.Type bound)
      Returns a type that represents an unknown type that extends bound. For example, if bound is CharSequence.class, this returns ? extends CharSequence. If bound is Object.class, this returns ?, which is shorthand for ? extends Object.

    • supertypeOf

      public static java.lang.reflect.WildcardType supertypeOf​(java.lang.reflect.Type bound)
      Returns a type that represents an unknown supertype of bound. For example, if bound is String.class, this returns ? super String.

    • listOf

      public static java.lang.reflect.ParameterizedType listOf​(java.lang.reflect.Type elementType)
      Returns a type modelling a List whose elements are of type elementType.
      Returns:
      a parameterized type.

    • setOf

      public static java.lang.reflect.ParameterizedType setOf​(java.lang.reflect.Type elementType)
      Returns a type modelling a Set whose elements are of type elementType.
      Returns:
      a parameterized type.

    • mapOf

      public static java.lang.reflect.ParameterizedType mapOf​(java.lang.reflect.Type keyType, java.lang.reflect.Type valueType)
      Returns a type modelling a Map whose keys are of type keyType and whose values are of type valueType.
      Returns:
      a parameterized type.

    • providerOf

      public static java.lang.reflect.ParameterizedType providerOf​(java.lang.reflect.Type providedType)
      Returns a type modelling a Provider that provides elements of type elementType.
      Returns:
      a parameterized type.