Package org.apache.commons.jexl3.internal

Provides utilities for introspection services.

This internal package is not intended for public usage and there is no guarantee that its public classes or methods will remain as is in subsequent versions.

This set of classes implement the various forms of setters and getters used by JEXL. These are specialized forms for 'pure' properties, discovering methods of the {s,g}etProperty form, for Maps, Lists and Ducks - attempting to discover a 'get' or 'set' method, making an object walk and quack.

Class Summary

Class	Description
ArrayBuilder	Helper class to create typed arrays.
AscIntegerIterator	An ascending iterator on an integer range.
AscLongIterator	An iterator on a long range.
CaptureReference	Captured variable reference.
Closure	A Script closure.
Debugger	Helps pinpoint the cause of problems in expressions that fail during evaluation.
DescIntegerIterator	A descending iterator on an integer range.
DescLongIterator	An iterator on a long range.
Engine	A JexlEngine implementation.
Engine.UberspectHolder	Gets the default instance of Uberspect.
Engine.VarCollector	Utility class to collect variables.
Engine32	Deprecated. 3.6.1, use Engine with JexlOptions instead.
FqcnResolver	Helper resolving a simple class name into a Fully Qualified Class Name (hence FqcnResolver) using package names and classes as roots of import.
Frame	A call frame, created from a scope, stores the arguments and local variables in a "stack frame" (sic).
IntegerRange	A range of integers.
IntegerRange.Ascending	Ascending integer range.
IntegerRange.Descending	Descending integer range.
Interpreter	An interpreter of JEXL syntax.
InterpreterBase	The helper base of an interpreter of JEXL syntax.
InterpreterBase.ArithmeticFuncall	Cached arithmetic function call.
InterpreterBase.ContextFuncall	Cached context function call.
InterpreterBase.ContextualCtor	A ctor that needs a context as 1st argument.
InterpreterBase.Funcall	Cached function call.
LexicalFrame	The set of valued symbols defined in a lexical frame.
LexicalScope	The set of symbols declared in a lexical scope.
LongRange	A range of longs.
LongRange.Ascending	Ascending long range.
LongRange.Descending	Descending long range.
MapBuilder	Helper class to create map literals.
MetaCache	A meta-cache that tracks multiple JexlCache instances via weak references.
Operator	Helper class to deal with operator overloading and specifics.
Operator.AntiCompareMethod	The reverse compare swaps left and right arguments and exploits the symmetry of compare as in: compare(a, b) <=> -compare(b, a)
Operator.CompareMethod	Delegates a comparison operator to a compare method.
ReferenceFrame	Pass-by-reference frame.
Scope	A script scope, stores the declaration of parameters and local variables as symbols.
Script	A JexlScript implementation.
ScriptVisitor	Concrete visitor base, used for feature and operator controllers.
SetBuilder	Helper class to create set literals.
SoftCache<K,V>	A soft referenced cache.
Source	Maintains the set of allowed features associated with a script/expression source.
TemplateDebugger	A visitor for templates.
TemplateEngine	A JxltEngine implementation.
TemplateEngine.Block	Abstract the source fragments, verbatim or immediate typed text blocks.
TemplateEngine.ExpressionBuilder	A helper class to build expressions.
TemplateInterpreter	The type of interpreter to use during evaluation of templates.
TemplateInterpreter.Arguments	Helper ctor.
TemplateScript	A Template instance.

Enum Summary

Enum	Description
TemplateEngine.BlockType	The enum capturing the difference between verbatim and code source fragments.
TemplateEngine.ExpressionType	Types of expressions.
TemplateEngine.ParseState	The different parsing states.