ognl

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Package ognl

Interface Summary
ClassResolver	This interface defines an object that will resolve a class from a string and a ognl context table.
ElementsAccessor	This interface defines a method for getting the "elements" of an object, which means any objects that naturally would be considered to be contained by the object.
MemberAccess	This interface provides a hook for preparing for accessing members of objects.
MethodAccessor	This interface defines methods for callinig methods in a target object.
Node	JJTree interface for AST nodes, as modified to handle the OGNL operations getValue and setValue.
NullHandler	Interface for handling null results from Chains.
NumericTypes	This interface defines some useful constants for describing the various possible numeric types of OGNL.
PropertyAccessor	This interface defines methods for setting and getting a property from a target object.
TypeConverter	Interface for accessing the type conversion facilities within a context.

Class Summary

ArrayElementsAccessor Implementation of ElementsAccessor that returns an iterator over a Java array.

ArrayPropertyAccessor Implementation of PropertyAccessor that uses numbers and dynamic subscripts as properties to index into Java arrays.

ASTAdd

ASTAnd

ASTAssign

ASTBitAnd

ASTBitNegate

ASTBitOr

ASTChain

ASTConst

ASTCtor

ASTDivide

ASTEq

ASTEval

ASTGreater

ASTGreaterEq

ASTIn

ASTInstanceof

ASTKeyValue

ASTLess

ASTLessEq

ASTList

ASTMap

ASTMethod

ASTMultiply

ASTNegate

ASTNot

ASTNotEq

ASTNotIn

ASTOr

ASTProject

ASTProperty

ASTRemainder

ASTRootVarRef

ASTSelect

ASTSelectFirst

ASTSelectLast

ASTSequence

ASTShiftLeft

ASTShiftRight

ASTStaticField

ASTStaticMethod

ASTSubtract

ASTTest

ASTThisVarRef

ASTUnsignedShiftRight

ASTVarRef

ASTXor

CollectionElementsAccessor Implementation of ElementsAccessor that returns a collection's iterator.

DefaultClassResolver Default class resolution.

DefaultMemberAccess This class provides methods for setting up and restoring access in a Field.

DefaultTypeConverter Default type conversion.

DynamicSubscript This class has predefined instances that stand for OGNL's special "dynamic subscripts" for getting at the first, middle, or last elements of a list.

EnumerationElementsAccessor Implementation of the ElementsAccessor interface for Enumerations, which returns an iterator that passes its calls through to the target Enumeration.

EnumerationIterator Object that implements Iterator from an Enumeration

EnumerationPropertyAccessor Implementation of PropertyAccessor that provides "property" reference to "nextElement" (aliases to "next" also) and "hasMoreElements" (also aliased to "hasNext").

Evaluation An Evaluation is and object that holds a node being evaluated and the source from which that node will take extract its value.

EvaluationPool

ExpressionNode

IntHashMap A Map that uses ints as the keys.

IntHashMap.Entry

IntHashMap.IntHashMapIterator

IteratorElementsAccessor Implementation of the ElementsAccessor interface for Iterators, which simply returns the target iterator itself.

IteratorEnumeration Maps an Iterator to an Enumeration

IteratorPropertyAccessor Implementation of PropertyAccessor that provides "property" reference to "next" and "hasNext".

ListPropertyAccessor Implementation of PropertyAccessor that uses numbers and dynamic subscripts as properties to index into Lists.

MapElementsAccessor Implementation of ElementsAccessor that returns an iterator over the map's values.

MapPropertyAccessor Implementation of PropertyAccessor that sets and gets properties by storing and looking up values in Maps.

NumberElementsAccessor Implementation of ElementsAccessor that returns an iterator over integers from 0 up to the given target.

ObjectArrayPool

ObjectArrayPool.SizePool

ObjectElementsAccessor Implementation of ElementsAccessor that returns a single-element iterator, containing the original target object.

ObjectIndexedPropertyDescriptor PropertyDescriptor subclass that describes an indexed set of read/write methods to get a property.

ObjectMethodAccessor Implementation of PropertyAccessor that uses reflection on the target object's class to find a field or a pair of set/get methods with the given property name.

ObjectNullHandler Implementation of NullHandler that returns null in all cases, so that NullPointerException will be thrown by the caller.

ObjectPropertyAccessor Implementation of PropertyAccessor that uses reflection on the target object's class to find a field or a pair of set/get methods with the given property name.

Ognl This class provides static methods for parsing and interpreting OGNL expressions.

OgnlContext This class defines the execution context for an OGNL expression

OgnlInvokePermission BasicPermission subclass that defines a permission token for invoking methods within OGNL.

OgnlOps This is an abstract class with static methods that define the operations of OGNL.

OgnlRuntime This is an abstract class with static methods that define runtime caching information in OGNL.

OgnlRuntime.ClassCache This is a highly specialized map for storing values keyed by Class objects.

OgnlRuntime.ClassCache.Entry

SetPropertyAccessor Implementation of PropertyAccessor that uses numbers and dynamic subscripts as properties to index into Lists.

SimpleNode

Exception Summary

ExpressionSyntaxException Exception thrown if a malformed OGNL expression is encountered.

InappropriateExpressionException Exception thrown if an OGNL expression is evaluated in the wrong context; the usual case is when an expression that does not end in a property reference is passed to setValue.

MethodFailedException Exception thrown if a method or constructor call fails.

NoSuchPropertyException Exception thrown if a property is attempted to be extracted from an object that does not have such a property.

OgnlException Superclass for OGNL exceptions, incorporating an optional encapsulated exception.