Package de.iip_ecosphere.platform.services.spring.descriptor

Class TypeResolver

java.lang.Object

de.iip_ecosphere.platform.services.spring.descriptor.TypeResolver

public class TypeResolver
extends Object

Resolves declared types to dynamic Java classes (just attributes).

Author:

Holger Eichelberger, SSE

Field Summary

Fields

Modifier and Type	Field	Description
private Map<String,Class<?>>	classes
private ClassLoader	loader
private static final Map<String,Class<?>>	PRIMITIVES

Constructor Summary

Constructors

Constructor	Description
TypeResolver(List<? extends Type> declarations)	Creates a type resolver and creates internal classes for declarations.

Method Summary

Modifier and Type	Method	Description
private boolean	createClasses(Type type)	Creates the classes for a given descriptor-defined type.
private List<Type>	createClasses(List<? extends Type> declarations)	Creates classes for all given type declarations.
static boolean	isPrimitive(String name)	Returns whether a given type name is considered to be pre-defined/primitive (including "String").
Class<?>	resolve(String name)	Resolve a type name to a type.

Methods inherited from class java.lang.Object

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

Field Details

PRIMITIVES

private static final Map<String,Class<?>> PRIMITIVES

classes

private Map<String,Class<?>> classes

loader

private ClassLoader loader

Constructor Details

TypeResolver

public TypeResolver(List<? extends Type> declarations)

Creates a type resolver and creates internal classes for declarations.

Parameters:

declarations - the type declarations to be used as descriptor-defined types

Method Details

createClasses

private List<Type> createClasses(List<? extends Type> declarations)

Creates classes for all given type declarations.

Parameters:

declarations - the declarations

Returns:

the left-over types that cannot be resolved, e.g., due to cyclic dependencies; empty if completely successful

isPrimitive

public static boolean isPrimitive(String name)

Returns whether a given type name is considered to be pre-defined/primitive (including "String").

Parameters:

name - the name to look for

Returns:

true for primitive/pre-defined, false else

createClasses

private boolean createClasses(Type type)

Creates the classes for a given descriptor-defined type.

Parameters:

type - the type

Returns:

true if the type is resolvable, the class was created and registered; false if the resolution failed, e.g., as required types are not (yet) defined.

resolve

public Class<?> resolve(String name)

Resolve a type name to a type. Considers pre-defined types (PRIMITIVES) as well as descriptor-defined types used as input to this instance.

Parameters:

name - the type name

Returns:

the type, may be null