| Interface | Description |
|---|---|
| Expression |
An Expression is an arbitrary function that takes a single Tuple as an
argument.
|
| ExpressionVisitor |
Visitor interface for objects that visit each sub-expression of an
Expression instance, performing some computation or data collection.
|
| Function |
Expression sub-interface representing a function in the prefuse
expression language.
|
| Predicate |
A Predicate is a special type of Expression that carries the guarantee
that the
Expression.getBoolean(Tuple)
method is supported. |
| Class | Description |
|---|---|
| AbstractExpression |
Abstract base class for Expression implementations.
|
| AbstractPredicate |
Abstract base class for dedicated Predicate instances.
|
| AndPredicate |
Predicate representing an "and" clause of sub-predicates.
|
| ArithmeticExpression |
Expression supporting basic arithmetic: add, subtract, multiply,
divide, exponentiate (pow), and modulo (%).
|
| BinaryExpression |
Abstract base class for Expression implementations that maintain two
sub-expressions.
|
| BooleanLiteral |
Literal expression of a boolean value.
|
| ColumnExpression |
Expression instance that returns the value stored in a Tuple data field.
|
| ComparisonPredicate |
Predicate implementation that computes a comparison operation.
|
| CompositePredicate |
Abstract base class for Predicate instances that maintain one or
more sub-predicates (clauses).
|
| ExpressionAnalyzer |
Library class that computes some simple analyses of an expression.
|
| FunctionExpression |
Abstract base class for FunctionExpression implementations.
|
| FunctionTable |
Function table that allows lookup of registered FunctionExpressions
by their function name.
|
| IfExpression |
Expression instance representing an "if then else" clause in the prefuse
expression language.
|
| Literal |
Abstarct base class for a Literal Expression that evaluates to a
constant value.
|
| NotPredicate |
Predicate representing the negation of another predicate.
|
| NumericLiteral |
Literal expression of a numeric value.
|
| ObjectLiteral |
Literal expression of an Object value.
|
| OrPredicate |
Predicate representing an "or" clause of sub-predicates.
|
| RangePredicate |
Predicate instance that evaluates if a value is contained within
a bounded range.
|
| XorPredicate |
Predicate representing an "xor" clause of sub-predicates.
|