See: Description
| Interface | Description |
|---|---|
| Bindable |
A planner type that supports rule binding.
|
| ExpressionRef<T extends PlannerExpression> |
This interface is used mostly as an (admittedly surmountable) barrier to rules mutating bound references directly,
which is undefined behavior.
|
| MutableExpressionRef<T extends PlannerExpression> |
A
MutableExpressionRef is a reference to one or more PlannerExpressions. |
| PlanContext |
A basic context object that stores all of the metadata about a record store, such as the available indexes.
|
| PlannerExpression |
The basic type that represents a part of the planner expression tree.
|
| PlannerProperty<T> |
An interface for certain Cascades-style properties, which are measurable features of an expression other than the
structure of the expression tree.
|
| PlannerRuleCall |
A
PlannerRuleCall is a context object that supports a single application of a rule to a particular
expression. |
| Class | Description |
|---|---|
| CascadesCostModel |
A comparator implementing the current heuristic cost model for the
CascadesPlanner. |
| CascadesPlanner |
A Cascades-style query planner that converts a
RecordQuery to a RecordQueryPlan, possibly using
secondary indexes defined in a RecordMetaData to execute the query efficiently. |
| CascadesRuleCall |
A rule call implementation for the
CascadesPlanner. |
| ComparisonRange |
A set of compatible comparisons on a single field of a
KeyExpression
representing a contiguous range of values for that field. |
| GroupExpressionPrinter |
A utility class for printing out a
GroupExpressionRef in a readable form. |
| GroupExpressionRef<T extends PlannerExpression> |
A Cascades-style group expression, representing the members of set of
PlannerExpressions that belong to
the same equivalence class. |
| IndexEntrySource |
A source of abstract index entries, each of which references a single record.
|
| KeyExpressionComparisons |
A data structure that represents a
KeyExpression with a ComparisonRange on some of its sub-expressions. |
| MetaDataPlanContext |
A
PlanContext where the underlying meta-data comes from RecordMetaData and RecordStoreState
objects, as is generally the case when planning actual queries. |
| NestedContext |
A
NestedContext is defined by a single FieldKeyExpression and represents a relative nesting within
the internal state of the query planner. |
| PlannerExpressionPointerSet<T extends PlannerExpression> |
A set of
PlannerExpressions that uses reference ("pointer") equality to determine equivalence for the
purposes of set membership, rather than the Object.equals(Object) method used by the Java Set interface. |
| PlannerRule<T extends PlannerExpression> |
Classes that inherit from
PlannerRule form the base of the Cascades planning system. |
| PlannerRuleSet |
A set of rules for use by a planner that supports quickly finding rules that could match a given planner expression.
|
| SingleExpressionRef<T extends PlannerExpression> |
A mutable reference to a single planner expression.
|
| Exception | Description |
|---|---|
| ExpressionRef.UngettableReferenceException |
An exception thrown when
ExpressionRef.get() is called on a reference that does not support it, such as a group reference. |