public interface IoSessionAttributeMap
IoSession
.
All user-defined attribute accesses in IoSession
are forwarded to
the instance of IoSessionAttributeMap
.Modifier and Type | Method and Description |
---|---|
boolean |
containsAttribute(IoSession session,
Object key)
Returns true if this session contains the attribute with
the specified key.
|
void |
dispose(IoSession session)
Disposes any releases associated with the specified session.
|
Object |
getAttribute(IoSession session,
Object key,
Object defaultValue)
Returns the value of user defined attribute associated with the
specified key.
|
Set<Object> |
getAttributeKeys(IoSession session)
Returns the set of keys of all user-defined attributes.
|
Object |
removeAttribute(IoSession session,
Object key)
Removes a user-defined attribute with the specified key.
|
boolean |
removeAttribute(IoSession session,
Object key,
Object value)
Removes a user defined attribute with the specified key if the current
attribute value is equal to the specified value.
|
boolean |
replaceAttribute(IoSession session,
Object key,
Object oldValue,
Object newValue)
Replaces a user defined attribute with the specified key if the
value of the attribute is equals to the specified old value.
|
Object |
setAttribute(IoSession session,
Object key,
Object value)
Sets a user-defined attribute.
|
Object |
setAttributeIfAbsent(IoSession session,
Object key,
Object value)
Sets a user defined attribute if the attribute with the specified key
is not set yet.
|
Object getAttribute(IoSession session, Object key, Object defaultValue)
if (containsAttribute(key)) { return getAttribute(key); } else { setAttribute(key, defaultValue); return defaultValue; }
Object setAttribute(IoSession session, Object key, Object value)
key
- the key of the attributevalue
- the value of the attributeObject setAttributeIfAbsent(IoSession session, Object key, Object value)
if (containsAttribute(key)) { return getAttribute(key); } else { return setAttribute(key, value); }
Object removeAttribute(IoSession session, Object key)
boolean removeAttribute(IoSession session, Object key, Object value)
if (containsAttribute(key) && getAttribute(key).equals(value)) { removeAttribute(key); return true; } else { return false; }
boolean replaceAttribute(IoSession session, Object key, Object oldValue, Object newValue)
if (containsAttribute(key) && getAttribute(key).equals(oldValue)) { setAttribute(key, newValue); return true; } else { return false; }
boolean containsAttribute(IoSession session, Object key)
Set<Object> getAttributeKeys(IoSession session)
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