AbstractBehavior (PicoContainer Core 2.15 API)

java.lang.Object
- org.picocontainer.behaviors.AbstractBehavior<T>

All Implemented Interfaces:

Serializable, Behavior<T>, ComponentAdapter<T>, ComponentLifecycle<T>, ComponentMonitorStrategy, LifecycleStrategy

Direct Known Subclasses:

Automated, Decorated, FieldDecorated, Guarded, HiddenImplementation, Locked, PropertyApplicator, Stored, Synchronized
```
public abstract class AbstractBehavior<T>
extends Object
implements Behavior<T>, ComponentMonitorStrategy, LifecycleStrategy, Serializable
```
Component adapter which decorates another adapter.

This adapter supports a component monitor strategy and will propagate change of monitor to the delegate if the delegate itself support the monitor strategy.

This adapter also supports a lifecycle manager and a lifecycle strategy if the delegate does.

Author:

Jon Tirsen, Aslak Hellesoy, Mauro Talevi

See Also:
Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from interface org.picocontainer.ComponentAdapter
  ComponentAdapter.NOTHING

Field Summary

Fields
Modifier and Type Field and Description

protected ComponentAdapter<T> delegate

Fields
Modifier and Type	Field and Description
`protected ComponentAdapter<T>`	`delegate`

Constructor Summary

Constructors
Constructor and Description

AbstractBehavior(ComponentAdapter<T> delegate)

Constructors
Constructor and Description
`AbstractBehavior(ComponentAdapter<T> delegate)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`accept(PicoVisitor visitor)` Accepts a visitor for this ComponentAdapter.
`void`	`changeMonitor(ComponentMonitor monitor)` Delegates change of monitor if the delegate supports a component monitor strategy.
`boolean`	`componentHasLifecycle()` Invokes delegate hasLifecycle method if the delegate is a Behavior Test if a component honors a lifecycle.
`ComponentMonitor`	`currentMonitor()` Returns delegate's current monitor if the delegate supports a component monitor strategy.
`void`	`dispose(Object component)` Invokes delegate dispose method if the delegate is a LifecycleStrategy Invoke the "dispose" method on the component instance if this is disposable.
`void`	`dispose(PicoContainer container)` Invokes delegate dispose method if the delegate is a Behavior Invoke the "dispose" method on the component.
`<U extends ComponentAdapter> U`	`findAdapterOfType(Class<U> adapterType)` Locates a component adapter of type componentAdapterType in the ComponentAdapter chain.
`Class<? extends T>`	`getComponentImplementation()` Retrieve the class of the component.
`T`	`getComponentInstance(PicoContainer container)` Retrieve the component instance.
`T`	`getComponentInstance(PicoContainer container, Type into)` Retrieve the component instance.
`Object`	`getComponentKey()` Retrieve the key associated with the component.
`ComponentAdapter<T>`	`getDelegate()` Component adapters may be nested in a chain, and this method is used to grab the next ComponentAdapter in the chain.
`boolean`	`hasLifecycle(Class<?> type)` Invokes delegate hasLifecycle(Class) method if the delegate is a LifecycleStrategy Test if a component instance has a lifecycle.
`boolean`	`isLazy(ComponentAdapter<?> adapter)` Is a component eager (not lazy) in that it should start when start() or equivalent is called, or lazy (it will only start on first getComponent() ).
`boolean`	`isStarted()`
`void`	`start(Object component)` Invokes delegate start method if the delegate is a LifecycleStrategy Invoke the "start" method on the component instance if this is startable.
`void`	`start(PicoContainer container)` Invokes delegate start method if the delegate is a Behavior Invoke the "start" method on the component.
`void`	`stop(Object component)` Invokes delegate stop method if the delegate is a LifecycleStrategy Invoke the "stop" method on the component instance if this is stoppable.
`void`	`stop(PicoContainer container)` Invokes delegate stop method if the delegate is a Behavior Invoke the "stop" method on the component.
`String`	`toString()`
`void`	`verify(PicoContainer container)` Verify that all dependencies for this adapter can be satisfied.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.picocontainer.ComponentAdapter
getDescriptor

- Field Detail
  - delegate
```
protected final ComponentAdapter<T> delegate
```
- Constructor Detail
  - AbstractBehavior
```
public AbstractBehavior(ComponentAdapter<T> delegate)
```
- Method Detail
  - getComponentKey
```
public Object getComponentKey()
```
    Description copied from interface: ComponentAdapter
    
    Retrieve the key associated with the component.
    
    Specified by:
    
    getComponentKey in interface ComponentAdapter<T>
    
    Returns:
    the component's key. Should either be a class type (normally an interface) or an identifier that is unique (within the scope of the current PicoContainer).
  - getComponentImplementation
```
public Class<? extends T> getComponentImplementation()
```
    Description copied from interface: ComponentAdapter
    
    Retrieve the class of the component.
    
    Specified by:
    
    getComponentImplementation in interface ComponentAdapter<T>
    
    Returns:
    the component's implementation class. Should normally be a concrete class (ie, a class that can be instantiated).
  - getComponentInstance
```
public T getComponentInstance(PicoContainer container)
                       throws PicoCompositionException
```
    Description copied from interface: ComponentAdapter
    
    Retrieve the component instance. This method will usually create a new instance each time it is called, but that is not required. For example, Cached will always return the same instance.
    
    Specified by:
    
    getComponentInstance in interface ComponentAdapter<T>
    
    Parameters:
    container - the PicoContainer, that is used to resolve any possible dependencies of the instance.
    
    Returns:
    the component instance.
    
    Throws:
    
    PicoCompositionException - if the component has dependencies which could not be resolved, or instantiation of the component lead to an ambigous situation within the container.
  - getComponentInstance
```
public T getComponentInstance(PicoContainer container,
                     Type into)
                       throws PicoCompositionException
```
    Description copied from interface: ComponentAdapter
    
    Retrieve the component instance. This method will usually create a new instance each time it is called, but that is not required. For example, Cached will always return the same instance.
    
    Specified by:
    
    getComponentInstance in interface ComponentAdapter<T>
    
    Parameters:
    container - the PicoContainer, that is used to resolve any possible dependencies of the instance.
    into - the class that is about to be injected into. Use ComponentAdapter.NOTHING.class if this is not important to you.
    
    Returns:
    the component instance.
    
    Throws:
    
    PicoCompositionException - if the component has dependencies which could not be resolved, or instantiation of the component lead to an ambiguous situation within the container.
  - verify
```
public void verify(PicoContainer container)
            throws PicoCompositionException
```
    Description copied from interface: ComponentAdapter
    
    Verify that all dependencies for this adapter can be satisfied. Normally, the adapter should verify this by checking that the associated PicoContainer contains all the needed dependencies.
    
    Specified by:
    
    verify in interface ComponentAdapter<T>
    
    Parameters:
    container - the PicoContainer, that is used to resolve any possible dependencies of the instance.
    
    Throws:
    
    PicoCompositionException - if one or more dependencies cannot be resolved.
  - getDelegate
```
public final ComponentAdapter<T> getDelegate()
```
    Description copied from interface: ComponentAdapter
    
    Component adapters may be nested in a chain, and this method is used to grab the next ComponentAdapter in the chain.
    
    Specified by:
    
    getDelegate in interface ComponentAdapter<T>
    
    Returns:
    the next component adapter in line or null if there is no delegate ComponentAdapter.
  - findAdapterOfType
```
public final <U extends ComponentAdapter> U findAdapterOfType(Class<U> adapterType)
```
    Description copied from interface: ComponentAdapter
    
    Locates a component adapter of type componentAdapterType in the ComponentAdapter chain. Will return null if there is no adapter of the given type.
    
    Specified by:
    
    findAdapterOfType in interface ComponentAdapter<T>
    
    Type Parameters:
    U - the type of ComponentAdapter being located.
    Parameters:
    adapterType - the class of the adapter type being located. Never null.
    
    Returns:
    the appropriate component adapter of type U. May return null if the component adapter type is not returned.
  - accept
```
public void accept(PicoVisitor visitor)
```
    Description copied from interface: ComponentAdapter
    
    Accepts a visitor for this ComponentAdapter. The method is normally called by visiting a PicoContainer, that cascades the visitor also down to all its ComponentAdapter instances.
    
    Specified by:
    
    accept in interface ComponentAdapter<T>
    
    Parameters:
    visitor - the visitor.
  - changeMonitor
```
public void changeMonitor(ComponentMonitor monitor)
```
    Delegates change of monitor if the delegate supports a component monitor strategy. Changes the component monitor used
    
    Specified by:
    
    changeMonitor in interface ComponentMonitorStrategy
    
    Parameters:
    monitor - the new ComponentMonitor to use
  - currentMonitor
```
public ComponentMonitor currentMonitor()
```
    Returns delegate's current monitor if the delegate supports a component monitor strategy. Returns the monitor currently used
    
    Specified by:
    
    currentMonitor in interface ComponentMonitorStrategy
    
    Returns:
    The ComponentMonitor currently used
    
    Throws:
    
    PicoCompositionException - if no component monitor is found in delegate
  - start
```
public void start(PicoContainer container)
```
    Invokes delegate start method if the delegate is a Behavior Invoke the "start" method on the component.
    
    Specified by:
    
    start in interface ComponentLifecycle<T>
    
    Parameters:
    container - the container to "start" the component
  - stop
```
public void stop(PicoContainer container)
```
    Invokes delegate stop method if the delegate is a Behavior Invoke the "stop" method on the component.
    
    Specified by:
    
    stop in interface ComponentLifecycle<T>
    
    Parameters:
    container - the container to "stop" the component
  - dispose
```
public void dispose(PicoContainer container)
```
    Invokes delegate dispose method if the delegate is a Behavior Invoke the "dispose" method on the component.
    
    Specified by:
    
    dispose in interface ComponentLifecycle<T>
    
    Parameters:
    container - the container to "dispose" the component
  - componentHasLifecycle
```
public boolean componentHasLifecycle()
```
    Invokes delegate hasLifecycle method if the delegate is a Behavior Test if a component honors a lifecycle.
    
    Specified by:
    
    componentHasLifecycle in interface ComponentLifecycle<T>
    
    Returns:
    true if the component has a lifecycle
  - isStarted
```
public boolean isStarted()
```
    Specified by:
    
    isStarted in interface ComponentLifecycle<T>
  - start
```
public void start(Object component)
```
    Invokes delegate start method if the delegate is a LifecycleStrategy Invoke the "start" method on the component instance if this is startable. It is up to the implementation of the strategy what "start" and "startable" means.
    
    Specified by:
    
    start in interface LifecycleStrategy
    
    Parameters:
    component - the instance of the component to start
  - stop
```
public void stop(Object component)
```
    Invokes delegate stop method if the delegate is a LifecycleStrategy Invoke the "stop" method on the component instance if this is stoppable. It is up to the implementation of the strategy what "stop" and "stoppable" means.
    
    Specified by:
    
    stop in interface LifecycleStrategy
    
    Parameters:
    component - the instance of the component to stop
  - dispose
```
public void dispose(Object component)
```
    Invokes delegate dispose method if the delegate is a LifecycleStrategy Invoke the "dispose" method on the component instance if this is disposable. It is up to the implementation of the strategy what "dispose" and "disposable" means.
    
    Specified by:
    
    dispose in interface LifecycleStrategy
    
    Parameters:
    component - the instance of the component to dispose
  - hasLifecycle
```
public boolean hasLifecycle(Class<?> type)
```
    Invokes delegate hasLifecycle(Class) method if the delegate is a LifecycleStrategy Test if a component instance has a lifecycle.
    
    Specified by:
    
    hasLifecycle in interface LifecycleStrategy
    
    Parameters:
    type - the component's type
    
    Returns:
    true if the component has a lifecycle
  - isLazy
```
public boolean isLazy(ComponentAdapter<?> adapter)
```
    Description copied from interface: LifecycleStrategy
    
    Is a component eager (not lazy) in that it should start when start() or equivalent is called, or lazy (it will only start on first getComponent() ). The default is the first of those two.
    
    Specified by:
    
    isLazy in interface LifecycleStrategy
    
    Returns:
    true if lazy, false if not lazy
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class AbstractBehavior<T>

Nested Class Summary

Nested classes/interfaces inherited from interface org.picocontainer.ComponentAdapter

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.picocontainer.ComponentAdapter

Field Detail

delegate

Constructor Detail

AbstractBehavior

Method Detail

getComponentKey

getComponentImplementation

getComponentInstance

getComponentInstance

verify

getDelegate

findAdapterOfType

accept

changeMonitor

currentMonitor

start

stop

dispose

componentHasLifecycle

isStarted

start

stop

dispose

hasLifecycle

isLazy

toString