org.codehaus.griffon.runtime.core

Class DefaultObservableContext

java.lang.Object

org.codehaus.griffon.runtime.core.AbstractContext

org.codehaus.griffon.runtime.core.DefaultContext

org.codehaus.griffon.runtime.core.DefaultObservableContext

All Implemented Interfaces:

Context, ObservableContext

public class DefaultObservableContext
extends DefaultContext
implements ObservableContext

Since:

2.5.0

Author:

Andres Almiray

Nested Class Summary

Nested classes/interfaces inherited from interface griffon.core.ObservableContext

ObservableContext.ContextEvent, ObservableContext.ContextEventListener

Field Summary

Fields inherited from class org.codehaus.griffon.runtime.core.DefaultContext

ERROR_KEY_BLANK

Fields inherited from class org.codehaus.griffon.runtime.core.AbstractContext

parentContext

Constructor Summary

Constructors

Constructor and Description
DefaultObservableContext()
DefaultObservableContext(Context parentContext)

Method Summary

Modifier and Type	Method and Description
void	addContextEventListener(ObservableContext.ContextEventListener listener)
void	destroy() Destroys this context.
protected void	fireContextEvent(ObservableContext.ContextEvent.Type type, java.lang.String key, java.lang.Object oldValue, java.lang.Object newValue)
protected void	fireContextEvent(ObservableContext.ContextEvent event)
ObservableContext.ContextEventListener[]	getContextEventListeners()
void	put(java.lang.String key, java.lang.Object value) Sets a key/value pair on this context.
java.lang.Object	remove(java.lang.String key) Removes a key from this context.
<T> T	removeAs(java.lang.String key) Removes a key from this context.
void	removeContextEventListener(ObservableContext.ContextEventListener listener)
<T> T	removeConverted(java.lang.String key, java.lang.Class<T> type) Removes a key from this context.

Methods inherited from class org.codehaus.griffon.runtime.core.DefaultContext

doGet, hasKey, keySet, putAt

Methods inherited from class org.codehaus.griffon.runtime.core.AbstractContext

containsKey, convertValue, get, get, getAs, getAs, getAsBoolean, getAsBoolean, getAsDouble, getAsDouble, getAsFloat, getAsFloat, getAsInt, getAsInt, getAsLong, getAsLong, getAsString, getAsString, getAt, getAt, getConverted, getConverted, getParentContext, injectMembers

Methods inherited from class java.lang.Object

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

Methods inherited from interface griffon.core.Context

containsKey, get, get, getAs, getAs, getAsBoolean, getAsBoolean, getAsDouble, getAsDouble, getAsFloat, getAsFloat, getAsInt, getAsInt, getAsLong, getAsLong, getAsString, getAsString, getAt, getAt, getConverted, getConverted, getParentContext, hasKey, injectMembers, keySet, putAt

Constructor Detail

DefaultObservableContext

public DefaultObservableContext()

DefaultObservableContext

public DefaultObservableContext(@Nullable
                                Context parentContext)

Method Detail

addContextEventListener

public void addContextEventListener(@Nonnull
                                    ObservableContext.ContextEventListener listener)

Specified by:

addContextEventListener in interface ObservableContext

removeContextEventListener

public void removeContextEventListener(@Nonnull
                                       ObservableContext.ContextEventListener listener)

Specified by:

removeContextEventListener in interface ObservableContext

getContextEventListeners

@Nonnull
public ObservableContext.ContextEventListener[] getContextEventListeners()

Specified by:

getContextEventListeners in interface ObservableContext

put

public void put(@Nonnull
                java.lang.String key,
                @Nullable
                java.lang.Object value)

Description copied from interface: Context

Sets a key/value pair on this context. If the context has a parent and if the key matches a parent key then the value will shadow the parent's, that is, the parent value will not be overwritten.

Specified by:

put in interface Context

Overrides:

put in class DefaultContext

Parameters:

key - the key to be registered

value - the value to save

remove

@Nullable
public java.lang.Object remove(@Nonnull
                                         java.lang.String key)

Description copied from interface: Context

Removes a key from this context. Does not affect the context's hierarchy.

Specified by:

remove in interface Context

Overrides:

remove in class DefaultContext

Parameters:

key - the key to be removed

Returns:

the value associated with the key or null if there wasn't any value.

removeAs

@Nullable
public <T> T removeAs(@Nonnull
                                java.lang.String key)

Description copied from interface: Context

Removes a key from this context. Does not affect the context's hierarchy. Blindly casts the returned value.

Specified by:

removeAs in interface Context

Overrides:

removeAs in class DefaultContext

Parameters:

key - the key to be removed

Returns:

the value associated with the key or null if there wasn't any value.

removeConverted

@Nullable
public <T> T removeConverted(@Nonnull
                                       java.lang.String key,
                                       @Nonnull
                                       java.lang.Class<T> type)

Description copied from interface: Context

Removes a key from this context. Does not affect the context's hierarchy. The value is converted to type T if found using a PropertyEditor.

Specified by:

removeConverted in interface Context

Overrides:

removeConverted in class DefaultContext

Parameters:

key - the key to be removed

type - the type to be returned

Returns:

the value associated with the key or null if there wasn't any value.

destroy

public void destroy()

Description copied from interface: Context

Destroys this context. Once destroyed a context should not be used anymore.

Specified by:

destroy in interface Context

Overrides:

destroy in class DefaultContext

fireContextEvent

protected void fireContextEvent(@Nonnull
                                ObservableContext.ContextEvent.Type type,
                                @Nonnull
                                java.lang.String key,
                                @Nullable
                                java.lang.Object oldValue,
                                @Nullable
                                java.lang.Object newValue)

fireContextEvent

protected void fireContextEvent(@Nonnull
                                ObservableContext.ContextEvent event)