Package org.evrete.api

Interface TypeResolver

All Superinterfaces:

Copyable<TypeResolver>

All Known Implementing Classes:

TypeResolverWrapper

public interface TypeResolver
extends Copyable<TypeResolver>

TypeResolver provides dynamic mapping of Java types to engine's internal Type. It is particularly useful when developers have to deal with XML or JSON objects.

Method Summary

Modifier and Type	Method	Description
default <T> Type<T>	declare(Class<T> type)	Declares and registers new Type with the given Java class name.
<T> Type<T>	declare(String typeName, Class<T> javaType)	Declares and registers new Type with the given type name and Java class
<T> Type<T>	declare(String typeName, String javaType)	Declares and registers new Type with the given type name and Java class name.
Collection<Type<?>>	getKnownTypes()
default <T> Type<T>	getOrDeclare(Class<T> cl)
default <T> Type<T>	getOrDeclare(String typeName)
default <T> Type<T>	getOrDeclare(String typeName, Class<T> javaType)
default <T> Type<T>	getOrDeclare(String typeName, String javaType)
<T> Type<T>	getType(int typeId)
<T> Type<T>	getType(String name)
<T> Type<T>	resolve(Object o)
void	wrapType(TypeWrapper<?> typeWrapper)

Methods inherited from interface org.evrete.api.Copyable

copyOf

Method Detail

getType

<T> Type<T> getType(String name)

Type Parameters:

T - type parameter

Parameters:

name - type's declared name

Returns:

existing Type or null if not found

getType

<T> Type<T> getType(int typeId)

Type Parameters:

T - type parameter

Parameters:

typeId - type id

Returns:

existing Type

Throws:

NoSuchElementException - if not found

getKnownTypes

Collection<Type<?>> getKnownTypes()

wrapType

void wrapType(TypeWrapper<?> typeWrapper)

declare

default <T> Type<T> declare(Class<T> type)

Declares and registers new Type with the given Java class name. The name of the resulting type will be Class.getName()

Type Parameters:

T - java class type parameter

Parameters:

type - Java class

Returns:

new internal type

Throws:

IllegalStateException - if such type name has been already declared

declare

<T> Type<T> declare(String typeName,
                    Class<T> javaType)

Declares and registers new Type with the given type name and Java class

Type Parameters:

T - java class type parameter

Parameters:

typeName - name of the type

javaType - Java class

Returns:

new internal type

Throws:

IllegalStateException - if such type name has been already declared

declare

<T> Type<T> declare(String typeName,
                    String javaType)

Declares and registers new Type with the given type name and Java class name. The existence of the corresponding Java class will be checked lazily, when the engine requires access to the class's properties.

Type Parameters:

T - java class type parameter

Parameters:

typeName - name of the type

javaType - Java class

Returns:

new internal type

Throws:

IllegalStateException - if such type name has been already declared

getOrDeclare

default <T> Type<T> getOrDeclare(String typeName,
                                 Class<T> javaType)

getOrDeclare

default <T> Type<T> getOrDeclare(String typeName,
                                 String javaType)

getOrDeclare

default <T> Type<T> getOrDeclare(String typeName)

getOrDeclare

default <T> Type<T> getOrDeclare(Class<T> cl)

resolve

<T> Type<T> resolve(Object o)

Type Parameters:

T - type parameter

Parameters:

o - object to resolve

Returns:

Type of the argument or null if object's type is unknown