SimpleContext (Apache Commons SCXML 2.0-SNAPSHOT API)

java.lang.Object
- org.apache.commons.scxml2.env.SimpleContext

All Implemented Interfaces:

Serializable, Context

Direct Known Subclasses:

GroovyContext, JexlContext, JSContext, MinimalContext, XPathContext
```
public class SimpleContext
extends Object
implements Context, Serializable
```
Simple Context wrapping a map of variables.

See Also:
Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

protected SCXMLSystemContext systemContext
- Fields inherited from interface org.apache.commons.scxml2.Context
  NAMESPACES_KEY

Fields
Modifier and Type	Field and Description
`protected SCXMLSystemContext`	`systemContext`

Constructor Summary

Constructors
Constructor and Description
`SimpleContext()` Constructor.
`SimpleContext(Context parent)` Constructor.
`SimpleContext(Context parent, Map<String,Object> initialVars)` Constructor.

Method Summary

Methods
Modifier and Type	Method and Description
`Object`	`get(String name)` Get the value of this variable; delegating to parent.
`protected org.apache.commons.logging.Log`	`getLog()` Get the log used by this `Context` instance.
`Context`	`getParent()` Get the parent Context, may be null.
`SCXMLSystemContext`	`getSystemContext()` Get the SCXMLSystemContext for this Context, should not be null unless this is the root Context
`Map<String,Object>`	`getVars()` Get the Map of all local variables in this Context.
`boolean`	`has(String name)` Check if this variable exists, delegating to parent.
`boolean`	`hasLocal(String name)` Check if this variable exists, only checking this Context
`void`	`reset()` Clear this Context.
`void`	`set(String name, Object value)` Assigns a new value to an existing variable or creates a new one.
`void`	`setLocal(String name, Object value)` Assigns a new value to an existing variable or creates a new one.
`protected void`	`setLog(org.apache.commons.logging.Log log)` Set the log used by this `Context` instance.
`protected void`	`setVars(Map<String,Object> vars)` Set the variables map.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - systemContext
```
protected final SCXMLSystemContext systemContext
```
- Constructor Detail
  - SimpleContext
```
public SimpleContext()
```
    Constructor.
  - SimpleContext
```
public SimpleContext(Context parent)
```
    Constructor.
    
    Parameters:
    parent - A parent Context, can be null
  - SimpleContext
```
public SimpleContext(Context parent,
             Map<String,Object> initialVars)
```
    Constructor.
    
    Parameters:
    parent - A parent Context, can be null
    initialVars - A pre-populated initial variables map
- Method Detail
  - set
```
public void set(String name,
       Object value)
```
    Assigns a new value to an existing variable or creates a new one. The method searches the chain of parent Contexts for variable existence.
    
    Specified by:
    
    set in interface Context
    
    Parameters:
    name - The variable name
    value - The variable value
    See Also:
    Context.set(String, Object)
  - get
```
public Object get(String name)
```
    Get the value of this variable; delegating to parent.
    
    Specified by:
    
    get in interface Context
    
    Parameters:
    name - The variable name
    
    Returns:
    Object The variable value
    See Also:
    Context.get(java.lang.String)
  - has
```
public boolean has(String name)
```
    Check if this variable exists, delegating to parent.
    
    Specified by:
    
    has in interface Context
    
    Parameters:
    name - The variable name
    
    Returns:
    boolean true if this variable exists
    See Also:
    Context.has(java.lang.String)
  - hasLocal
```
public boolean hasLocal(String name)
```
    Check if this variable exists, only checking this Context
    
    Specified by:
    
    hasLocal in interface Context
    
    Parameters:
    name - The variable name
    
    Returns:
    boolean true if this variable exists
    See Also:
    Context.hasLocal(java.lang.String)
  - reset
```
public void reset()
```
    Clear this Context.
    
    Specified by:
    
    reset in interface Context
    
    See Also:
    Context.reset()
  - getParent
```
public Context getParent()
```
    Get the parent Context, may be null.
    
    Specified by:
    
    getParent in interface Context
    
    Returns:
    Context The parent Context
    See Also:
    Context.getParent()
  - getSystemContext
```
public final SCXMLSystemContext getSystemContext()
```
    Get the SCXMLSystemContext for this Context, should not be null unless this is the root Context
    
    Specified by:
    
    getSystemContext in interface Context
    
    Returns:
    The SCXMLSystemContext in a chained Context environment
  - setLocal
```
public void setLocal(String name,
            Object value)
```
    Assigns a new value to an existing variable or creates a new one. The method allows to shaddow a variable of the same name up the Context chain.
    
    Specified by:
    
    setLocal in interface Context
    
    Parameters:
    name - The variable name
    value - The variable value
    See Also:
    Context.setLocal(String, Object)
  - setVars
```
protected void setVars(Map<String,Object> vars)
```
    Set the variables map.
    
    Parameters:
    vars - The new Map of variables.
  - getVars
```
public Map<String,Object> getVars()
```
    Get the Map of all local variables in this Context.
    
    Specified by:
    
    getVars in interface Context
    
    Returns:
    Returns the vars.
    See Also:
    Context.getParent()
  - setLog
```
protected void setLog(org.apache.commons.logging.Log log)
```
    Set the log used by this Context instance.
    
    Parameters:
    log - The new log.
  - getLog
```
protected org.apache.commons.logging.Log getLog()
```
    Get the log used by this Context instance.
    
    Returns:
    Log The log being used.

Class SimpleContext

Field Summary

Fields inherited from interface org.apache.commons.scxml2.Context

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

systemContext

Constructor Detail

SimpleContext

SimpleContext

SimpleContext

Method Detail

set

get

has

hasLocal

reset

getParent

getSystemContext

setLocal

setVars

getVars

setLog

getLog