com.espertech.esper.epl.variable
Interfaces 
VariableChangeCallback
VariableService
VariableStateHandler
Classes 
CreateVariableView
CurrentValue
OnSetVariableView
VariableReader
VariableServiceImpl
VariableVersionThreadEntry
VariableVersionThreadLocal
VersionedValue
VersionedValueList
Exceptions 
VariableDeclarationException
VariableExistsException
VariableNotFoundException
VariableTypeException