modhelxs.state_management
Class State

java.lang.Object
  modhelxs.state_management.State

public class State
extends java.lang.Object

A State manages the state of a NamedEntity, which is composed of its field of type StateValue. A State can also be used to initialize the field of type Value of a NamedEntity.

Author:

boulange

Field Summary

private NamedEntity	owner_ The NamedEntity which owns the Attributes managed by this State.
private java.util.HashMap<java.lang.String,java.lang.reflect.Field>	snap_statevalues_
private java.util.HashMap<java.lang.String,java.lang.reflect.Field>	statevalues_ A name->attribute map of the state values of the owner.

Constructor Summary

State(NamedEntity e)
Create a State for handling the state values of e.

Method Summary

void	commit() Commit the changes to this State.
private void	commitValues(java.util.Collection<java.lang.reflect.Field> fields)
private static java.util.List<java.lang.reflect.Field>	getAllFields(java.lang.Class<?> c) Get all the fields of objects of a class, even inherited ones.
void	initFromProperties(java.lang.String... assignments) Initialize the fields of type Value of the NamedEntity owning this state from its properties.
void	revert() Revert the regular state values to their value after the last commit operation.
void	revertSnap() Revert the snapshot state values to their value after the last commit operation.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

owner_

private NamedEntity owner_

The NamedEntity which owns the Attributes managed by this State.

statevalues_

private java.util.HashMap<java.lang.String,java.lang.reflect.Field> statevalues_

A name->attribute map of the state values of the owner.

snap_statevalues_

private java.util.HashMap<java.lang.String,java.lang.reflect.Field> snap_statevalues_

Constructor Detail

State

public State(NamedEntity e)

Create a State for handling the state values of e.

Method Detail

getAllFields

private static java.util.List<java.lang.reflect.Field> getAllFields(java.lang.Class<?> c)

Get all the fields of objects of a class, even inherited ones.

revert

public void revert()

Revert the regular state values to their value after the last commit operation.

revertSnap

public void revertSnap()

Revert the snapshot state values to their value after the last commit operation.

commit

public void commit()

Commit the changes to this State.

commitValues

private void commitValues(java.util.Collection<java.lang.reflect.Field> fields)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

initFromProperties

public void initFromProperties(java.lang.String... assignments)

Initialize the fields of type Value of the NamedEntity owning this state from its properties. By default, each Value is initialized from the property by the same name. If some values should be initialized from properties with a different name, the mapping from value name to property name can be given using the assignments parameter. Each assignment String is in the form "=".

Parameters:

assignments - a list of strings in the form "=" to set from which property a value will be initialized. Values whose name does not appear in assignments will be initialized from properties which have the same name as the value, if such a property exists.