SessionContext

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org.mentawai.core
Class SessionContext

java.lang.Object
  org.mentawai.core.SessionContext

All Implemented Interfaces:: Context, java.util.Map

public class SessionContext
extends java.lang.Object
implements Context, java.util.Map

Encapsulates a HttpSession as a context for Mentawai actions.

Nested Class Summary

Nested classes inherited from class java.util.Map

java.util.Map.Entry

Field Summary

private javax.servlet.http.HttpServletRequest req


private javax.servlet.http.HttpSession session


Constructor Summary

SessionContext(javax.servlet.http.HttpServletRequest req)
          Calls getSession(true) to get the session from this request and creates a context for that session.

Method Summary

void clear()
          Remove all entries from this Map (optional operation).

boolean containsKey(java.lang.Object key)
          Returns true if this contains a mapping for the given key.

boolean containsValue(java.lang.Object value)
          Returns true if this contains at least one mapping with the given value.

java.util.Set entrySet()
          Returns a set view of the mappings in this Map.

java.lang.Object get(java.lang.Object key)
          Returns the value mapped by the given key.

java.lang.Object getAttribute(java.lang.String name)
          Gets an attribute value associated with the given name.

javax.servlet.http.HttpSession getSession()
          Returns the HttpSession associated with this context.

boolean hasAttribute(java.lang.String name)
          Returns true is an attribute exists with this name.

boolean isEmpty()
          Returns true if the map contains no mappings.

java.util.Set keySet()
          Returns a set view of the keys in this Map.

java.lang.Object put(java.lang.Object key, java.lang.Object value)
          Associates the given key to the given value (optional operation).

void putAll(java.util.Map map)
          Copies all entries of the given map to this one (optional operation).

java.lang.Object remove(java.lang.Object key)
          Removes the mapping for this key if present (optional operation).

void removeAttribute(java.lang.String name)
          Removes an attribute associated with the given name.

void reset()
          Resets this context.

void setAttribute(java.lang.String name, java.lang.Object value)
          Sets an attribute value associated with the given name.

int size()
          Returns the number of key-value mappings in the map.

java.util.Collection values()
          Returns a collection (or bag) view of the values in this Map.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Field Detail

session

private javax.servlet.http.HttpSession session

req

private javax.servlet.http.HttpServletRequest req

Constructor Detail

SessionContext

public SessionContext(javax.servlet.http.HttpServletRequest req)

Calls getSession(true) to get the session from this request and creates a context for that session.

Method Detail

getAttribute

public java.lang.Object getAttribute(java.lang.String name)

Description copied from interface: Context

Gets an attribute value associated with the given name.

Specified by:: getAttribute in interface Context

setAttribute

public void setAttribute(java.lang.String name,
                         java.lang.Object value)

Description copied from interface: Context

Sets an attribute value associated with the given name. If the attribute already exists, overwrite it.

Specified by:: setAttribute in interface Context

removeAttribute

public void removeAttribute(java.lang.String name)

Description copied from interface: Context

Removes an attribute associated with the given name.

Specified by:: removeAttribute in interface Context

reset

public void reset()

Description copied from interface: Context

Resets this context. All values are discarded and a new context is internally created.

Specified by:: reset in interface Context

getSession

public javax.servlet.http.HttpSession getSession()

Returns the HttpSession associated with this context.

hasAttribute

public boolean hasAttribute(java.lang.String name)

Description copied from interface: Context

Returns true is an attribute exists with this name.

Specified by:: hasAttribute in interface Context