Package io.permazen.parse.expr

Classes for parsing Java expressions with Permazen-specific extensions.

Interface Summary

Interface	Description
LValue	Extension of the Value interface for instances that are capable of assignment.
Node	The product of a parse operation, which is capable of producing a Value when evaluated within a transaction.
Value	Holds a value for use during expression evaluation.

Class Summary

Class	Description
AbstractLValue	Abstract LValue implementation.
AbstractNamed	Support superclass for things with a name.
AbstractValue	Value implementation superclass with implementations for all methods other than get().
AdditiveExprParser	Parses Java additive expressions of the form x + y and x - y.
AssignmentExprParser	Parses Java assignment expressions of the form x = y, x += y, etc.
AtomExprParser	Parses atomic Java expressions such as parenthesized expressions, new expressions, session function calls, identifiers (e.g., lambda method parameter names), and literals.
BaseExprParser	Parses basic left-associative Java expressions such as auto-increment expressions, array access, field access, invocation, etc.
BeanPropertyValue	Value that reflects a bean property in some object.
BinaryExprParser	Support superclass for tail-recursive binary expression parsers for expressions of the form ARG1 OP ARG2.
BitwiseAndParser	Parses bit-wise AND expressions of the form x & y.
BitwiseOrParser	Parses bit-wise OR expressions of the form x | y.
BitwiseXorParser	Parses bit-wise XOR expressions of the form x ^ y.
BoundMethodReferenceNode	Node representing a bound method reference like "foobar"::indexOf.
CastExprParser	Parses type cast expressions.
CastNode	A parsed cast expression.
ClassNode	A Node that evaluates to a Class object, given the class' name.
ConditionalParser	Parses conditional expressions of the form x ? y : z.
ConstNode	A Node that always evaluates to the same Value.
ConstructorInvokeNode	Node that invokes a Java constructor when evaluated.
ConstValue	A constant, read-only Value.
EmptyArrayNode	Node representing an "empty" array instantiation expression, i.e., with dimensions but no literal values.
EqualityParser	Parses equality expressions of the form x == y or x != y.
ExprParser	Java expression parser.
FieldValue	Value that reflects a core API Field in some database object.
InstanceFieldValue	Value that reflects a non-static field in some Java object.
InstanceofParser	Parses instanceof expressions.
JFieldValue	Value that reflects a JField in some JObject.
JSimpleFieldValue	Value that reflects a JSimpleField in some JObject.
LambdaExprParser	Parses lambda expressions.
LambdaNode	Node representing a lambda function.
LambdaNode.Param
LiteralArrayNode	Node representing a literal array instantiation expression, i.e., with curly braces initial values.
LiteralExprParser	Parses literal values.
LiteralNode	A parsed literal value.
LogicalAndParser	Parses logical AND expressions of the form x && y.
LogicalOrParser	Parses logical OR expressions of the form x || y.
MethodInvokeNode	Node that invokes a Java method when evaluated.
MethodReferenceNode	Node representing a method reference.
MultiplicativeExprParser	Parses multiplicative expressions of the form x & y, x / y, and x % y.
MutableBeanPropertyValue	Value that reflects a mutable bean property in some object.
RelationalExprParser	Parses relational expressions of the form x < y, x >= y, etc.
ShiftExprParser	Parses shift expressions of the form x << y, x >> y, and x >>> y.
SimpleFieldValue	Value that reflects a core API SimpleField in some database object.
StaticFieldValue	Value that reflects a static Java field in some Class.
TypeInferringNode	Support superclass for Nodes that perform type inferrence and therefore require a target type in order to be completely parsed.
UnaryExprParser	Parses unary expressions using one of !, ~, +, -, ++, --.
UnboundMethodReferenceNode	Node representing an unbound method reference like String::valueOf or String::length.
ValueValue	A Value that holds a reference to some other Value.
VarNode	Node representing a parsed ParseSession variable.
VarValue	Value that represents a ParseSession variable.

Enum Summary

Enum	Description
Op	Java expression operators.

Exception Summary

Exception	Description
EvalException	Thrown when an error occurs evaluating an expression.