dev.voidframework.web.http.Session Maven / Gradle / Ivy
package dev.voidframework.web.http;
import java.util.HashMap;
import java.util.Map;
/**
* An HTTP session.
*/
public class Session extends HashMap {
/**
* Indicate if the session has been modified.
*/
transient private boolean isModified;
/**
* Build a new instance.
*/
public Session() {
}
/**
* Build a new instance.
*
* @param sessionData Initial session data
*/
public Session(final Map sessionData) {
super(sessionData);
}
/**
* Removes a value from the session.
*
* @param key Key whose mapping value to remove
* @return The previous value associated with key, otherwise, {@code null}
*/
@Override
public String remove(final Object key) {
this.isModified = true;
return super.remove(key);
}
/**
* Adds the single value to the session.
*/
@Override
public String put(final String key, final String value) {
this.isModified = true;
return super.put(key, value);
}
/**
* Adds the multiple values to the session.
*/
@Override
public void putAll(final Map values) {
this.isModified = true;
super.putAll(values);
}
/**
* Clears all data from the session.
*/
@Override
public void clear() {
if (!this.isEmpty()) {
this.isModified = true;
super.clear();
}
}
/**
* Checks if the session has been modified.
*
* @return {@code true} if the session has been modified, otherwise, {@code false}
*/
public boolean isModified() {
return isModified;
}
}