org.jbpm.pvm.impl
Class VariableMap

java.lang.Object
  org.jbpm.pvm.impl.VariableMap

All Implemented Interfaces:

java.io.Serializable, VariableScope

public class VariableMap
extends java.lang.Object
implements VariableScope, java.io.Serializable

maintains a map of named objects. Internally, the objects are wrapped and stored as Variable-objects so that this map can be persisted with hibernate in the database.

See Also:

Serialized Form

Field Summary

protected long	dbid
protected int	dbversion
protected ExecutionImpl	execution
protected ExecutionImpl	processInstance
protected java.util.Map<java.lang.String,Variable>	variables

Constructor Summary

VariableMap()

VariableMap(ExecutionImpl execution)

Method Summary

protected Variable	createVariable(java.lang.String key, java.lang.Object value)
java.lang.Object	get(java.lang.String key) retrieve an object from this scope
java.util.Map<java.lang.String,java.lang.Object>	getAll() all the variables.
Variable	getVariable(java.lang.String key)
boolean	has(java.lang.String key) check for presence of a key in this scope
boolean	isEmpty() checks if this scope is empty
java.util.Set<java.lang.String>	keys() all the keys that are present in this scope
boolean	remove(java.lang.String key) remove the entry for the given key from this scope
protected boolean	removeVariable(java.lang.String key)
void	set(java.lang.String key, java.lang.Object value) set an object in this scope
protected void	setVariable(Variable variable)

Methods inherited from class java.lang.Object

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

Field Detail

dbid

protected long dbid

dbversion

protected int dbversion

variables

protected java.util.Map<java.lang.String,Variable> variables

execution

protected ExecutionImpl execution

processInstance

protected ExecutionImpl processInstance

Constructor Detail

VariableMap

public VariableMap()

VariableMap

public VariableMap(ExecutionImpl execution)

Method Detail

isEmpty

public boolean isEmpty()

Description copied from interface: VariableScope

checks if this scope is empty

Specified by:

isEmpty in interface VariableScope

has

public boolean has(java.lang.String key)

Description copied from interface: VariableScope

check for presence of a key in this scope

Specified by:

has in interface VariableScope

keys

public java.util.Set<java.lang.String> keys()

Description copied from interface: VariableScope

all the keys that are present in this scope

Specified by:

keys in interface VariableScope

getAll

public java.util.Map<java.lang.String,java.lang.Object> getAll()

all the variables. A new HashMap is created for each invocation.

Specified by:

getAll in interface VariableScope

Returns:

a Map of variables or null if there are no variables.

get

public java.lang.Object get(java.lang.String key)

Description copied from interface: VariableScope

retrieve an object from this scope

Specified by:

get in interface VariableScope

remove

public boolean remove(java.lang.String key)

Description copied from interface: VariableScope

remove the entry for the given key from this scope

Specified by:

remove in interface VariableScope

set

public void set(java.lang.String key,
                java.lang.Object value)

Description copied from interface: VariableScope

set an object in this scope

Specified by:

set in interface VariableScope

createVariable

protected Variable createVariable(java.lang.String key,
                                  java.lang.Object value)

getVariable

public Variable getVariable(java.lang.String key)

removeVariable

protected boolean removeVariable(java.lang.String key)

Returns:

true if a variable was actually deleted.

setVariable

protected void setVariable(Variable variable)