Package org.silverpeas.bridge

Class SafeSessionManager

java.lang.Object

org.silverpeas.bridge.SafeSessionManager

public class SafeSessionManager
extends Object

This class allows handling a session safely against the different request calls.

Some synchronized access are performed around session creation and session attribute accesses.

Author:

silveryocha

Constructor Summary

Constructors

Constructor	Description
SafeSessionManager(jakarta.servlet.http.HttpServletRequest request)

Method Summary

Modifier and Type	Method	Description
<T> T	getAttribute(String attributeName, Class<T> aClass)	Gets the specified attribute value from the session.
<T> T	getAttribute(String attributeName, Class<T> aClass, T defaultValue)	Gets the specified attribute value from the session.
<T> T	removeAttribute(String attributeName, Class<T> aClass)	Removes from the session the specified attribute.
<T> void	setAttribute(String attributeName, T value)	Sets the specified attribute value into the session.

Methods inherited from class java.lang.Object

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

Constructor Details

SafeSessionManager

public SafeSessionManager(jakarta.servlet.http.HttpServletRequest request)

Method Details

getAttribute

public <T> T getAttribute(String attributeName,
 Class<T> aClass)

Gets the specified attribute value from the session.

If the session does not exists, it is not created.

If no value exists, null is returned.

Type Parameters:

T - the type of the value.

Parameters:

attributeName - the name of the attribute to fetch.

aClass - the class of the value fetched.

Returns:

the value if any, null otherwise.

getAttribute

public <T> T getAttribute(String attributeName,
 Class<T> aClass,
 T defaultValue)

Gets the specified attribute value from the session.

If the session does not exists, it is not created.

If no value exists, default one is returned.

Type Parameters:

T - the type of the value.

Parameters:

attributeName - the name of the attribute to fetch.

aClass - the class of the value fetched.

defaultValue - default value of no value fetched from session.

Returns:

the value if any, default value otherwise.

setAttribute

public <T> void setAttribute(String attributeName,
 T value)

Sets the specified attribute value into the session.

If the session does not exist, it is created.

Type Parameters:

T - the type of the value.

Parameters:

attributeName - the name of the attribute to fetch.

value - the value to put.

removeAttribute

public <T> T removeAttribute(String attributeName,
 Class<T> aClass)

Removes from the session the specified attribute.

If the session does not exist, nothing is performed.

Type Parameters:

T - the type of the value.

Parameters:

attributeName - the name of the attribute to fetch.

aClass - the class of the value fetched.

Returns:

the removed value if any, null otherwise.