See: Description
Interface | Description |
---|---|
ClassCacheInspector |
Optional interface that may be registered with
OgnlRuntime.setClassCacheInspector(ClassCacheInspector) as
a means to disallow caching of specific class types. |
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.
|
JavaSource |
Defines an object that can return a representation of itself and any objects it contains
in the form of a
String embedded with literal java statements. |
MemberAccess |
This interface provides a hook for preparing for accessing members
of objects.
|
MethodAccessor |
This interface defines methods for calling methods in a target object.
|
Node |
JJTree interface for AST nodes, as modified to handle the OGNL operations getValue and
setValue.
|
NodeType |
Used by some of the
ognl.enhance.OgnlExpressionCompiler logic to determine the object
type of Node s during expression evaluation. |
NullHandler |
Interface for handling null results from Chains.
|
NumericTypes |
This interface defines some useful constants for describing the various possible
numeric types of OGNL.
|
OgnlParserConstants |
Token literal values and constants.
|
OgnlParserTreeConstants | |
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 | Description |
---|---|
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.
|
ASTAnd | |
ASTChain | |
ASTConst | |
ASTCtor | |
ASTInstanceof | |
ASTList | |
ASTMethod | |
ASTOr | |
ASTProperty | |
ASTRootVarRef | |
ASTSequence | |
ASTStaticField | |
ASTStaticMethod | |
ASTThisVarRef | |
ASTVarRef | |
BooleanExpression |
Base class for boolean expressions.
|
CollectionElementsAccessor |
Implementation of ElementsAccessor that returns a collection's iterator.
|
ComparisonExpression |
Base class for types that compare values.
|
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 | |
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".
|
JavaCharStream |
An implementation of interface CharStream, where the stream is assumed to
contain only ASCII characters (with java-like unicode escape processing).
|
JJTOgnlParserState | |
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.
|
NumericExpression |
Base class for numeric expressions.
|
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.
|
OgnlParser |
OgnlParser is a JavaCC parser class; it translates OGNL expressions into abstract
syntax trees (ASTs) that can then be interpreted by the getValue and setValue methods.
|
OgnlParserTokenManager |
Token Manager.
|
OgnlRuntime |
Utility class used by internal OGNL API to do various things like:
Handles majority of reflection logic / caching.
|
SetPropertyAccessor |
Implementation of PropertyAccessor that uses numbers and dynamic subscripts as
properties to index into Lists.
|
SimpleNode | |
Token |
Describes the input token stream.
|
Exception | Description |
---|---|
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.
|
ParseException |
This exception is thrown when parse errors are encountered.
|
Error | Description |
---|---|
TokenMgrError |
Token Manager Error.
|
OGNL stands for Object-Graph Navigation Language; it is an expression language for getting and setting properties of Java objects. You use the same expression for both getting and setting the value of a property.
OGNL started out as a way to set up associations between UI components and controllers using property names. As the desire for more complicated associations grew, Drew Davidson created what he called KVCL, for Key-Value Coding Language, egged on by Luke Blanshard. Luke then reimplemented the language using ANTLR, came up with the new name, and, egged on by Drew, filled it out to its current state.
We pronounce OGNL as a word, like the last syllables of a drunken pronunciation of "orthogonal" or like "ogg-null".
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