com.haulmont.cuba.core.global

Class AppBeans

java.lang.Object

com.haulmont.cuba.core.global.AppBeans

public class AppBeans
extends java.lang.Object

Contains static methods for access to all managed beans of the application block.

See Also:

BeanLocator

Constructor Summary

Constructors

Constructor and Description
AppBeans()

Method Summary

Modifier and Type	Method and Description
static boolean	containsBean(java.lang.String name) Whether a bean with the given name is present.
static <T> T	get(java.lang.Class<T> beanType) Return the bean instance that matches the given object type.
static <T> T	get(java.lang.String name) Return an instance of the specified bean.
static <T> T	get(java.lang.String name, java.lang.Class<T> beanType) Return an instance of the specified bean.
static <T> java.util.Map<java.lang.String,T>	getAll(java.lang.Class<T> beanType) Return the bean instances that match the given object type (including subclasses).
static <T> T	getPrototype(java.lang.Class<T> beanType, java.lang.Object... args) Return an instance of prototype bean, specifying explicit constructor arguments.
static <T> T	getPrototype(java.lang.String name, java.lang.Object... args) Return an instance of prototype bean, specifying explicit constructor arguments.

Methods inherited from class java.lang.Object

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

Constructor Detail

AppBeans

public AppBeans()

Method Detail

get

public static <T> T get(java.lang.Class<T> beanType)

Return the bean instance that matches the given object type. If the provided bean class contains a public static field NAME, this name is used to look up the bean to improve performance.

Parameters:

beanType - type the bean must match; can be an interface or superclass. null is disallowed.

Returns:

an instance of the single bean matching the required type

get

public static <T> T get(java.lang.String name)

Return an instance of the specified bean.

Parameters:

name - the name of the bean to retrieve

Returns:

bean instance

See Also:

BeanFactory.getBean(java.lang.String)

get

public static <T> T get(java.lang.String name,
                        @Nullable
                        java.lang.Class<T> beanType)

Return an instance of the specified bean.

Parameters:

name - the name of the bean to retrieve

beanType - type the bean must match. Can be an interface or superclass of the actual class, or null for any match. For example, if the value is Object.class, this method will succeed whatever the class of the returned instance.

Returns:

bean instance

getPrototype

public static <T> T getPrototype(java.lang.String name,
                                 java.lang.Object... args)

Return an instance of prototype bean, specifying explicit constructor arguments.

Parameters:

name - the name of the bean to retrieve

args - constructor arguments

Returns:

bean instance

getPrototype

public static <T> T getPrototype(java.lang.Class<T> beanType,
                                 java.lang.Object... args)

Return an instance of prototype bean, specifying explicit constructor arguments.

Parameters:

beanType - type the bean must match; can be an interface or superclass. null is disallowed.

args - constructor arguments

Returns:

bean instance

getAll

public static <T> java.util.Map<java.lang.String,T> getAll(java.lang.Class<T> beanType)

Return the bean instances that match the given object type (including subclasses).

The Map returned by this method should always return bean names and corresponding bean instances in the order of definition in the backend configuration, as far as possible.

Parameters:

beanType - the class or interface to match, or null for all concrete beans

Returns:

a Map with the matching beans, containing the bean names as keys and the corresponding bean instances as values

containsBean

public static boolean containsBean(java.lang.String name)

Whether a bean with the given name is present.