Package de.intarsys.tools.expression

Interface Summary

IStringEvaluator	Declares the ability to evaluate an expression or statement (for example "2+3" or "variable") defined in a string and return the result.
IStringEvaluatorSupport	An object that can render itself as an IStringEvaluator.

Class Summary

ArrayResolver	An IStringEvaluator that looks up a variable in an array.
ConstantResolver	Resolve an expression to a constant value.
ContainerResolver	A common superclass for implementing an IStringEvaluator that can navigate along a "." separated path in an expression.
DynamicArgsResolver	An IStringEvaluator accessing the current argument values for resolving expressions.
EchoResolver	Resolve an expression to the expression itself This is a practical tool if you want to adapt different string resolving components to provide the same expression set.
EntityResolver	An IStringEvaluator that allows indirect literals.
EnvironmentResolver	An IStringEvaluator implementation giving access to IFileEnvironment related information.
ExpressionEvaluator	A VM singleton for an expression evaluating IStringEvaluator instance.
ListResolver	An IStringEvaluator that looks up a variable in a List.
MapResolver	An IStringEvaluator that looks up a variable in a simple Map.
MessageBundleMessageResolver	An IStringEvaluator accessing messages in a bundle indirectly via Message object references.
MessageBundleStringResolver	An IStringEvaluator accessing messages in a bundle.
NLSMessageResolver	An IStringEvaluator accessing Message instances in a expression defined package
NLSStringResolver	An IStringEvaluator accessing message strings in a expression defined package
PreferencesResolver	An IStringEvaluator accessing preferences values.
ProcessingDecorator	A decorating IStringEvaluator to add result processing support to an other embedded IStringEvaluator.
PropertiesResolver	Resolve names against system properties.
PushScopeStringEvaluator
PushScopeStringEvaluator.Resolver
ReflectiveResolver	An IStringEvaluator that provides reflective access to an objects properties.
ScopedResolver	An IStringEvaluator that supports a list of other resolvers that are each asked in turn for evaluating the result.
StaticArgEntriesResolver	An IStringEvaluator accessing statically provided argument values.
StaticArgsResolver	An IStringEvaluator accessing statically provided argument values.
SystemResolver	An IStringEvaluator implementation giving access common system state.
TaggedStringEvaluator	An IStringEvaluator for string templates.
TagResolver	Resolve expressions against an object's tags
TemplateEvaluator	A VM singleton for a template evaluation engine.
VariableNamespaceResolver	Select variable values from a IVariableNamespace.
VariableNamespacesResolver	Select IVariableNamespace from IVariableNamespaces.

Exception Summary

EvaluationException

An Exception to indicate failure while parsing or evaluating an expression.