Uses of Package
org.modeshape.jcr.query.optimize

Packages that use org.modeshape.jcr.query.optimize

Package	Description
org.modeshape.jcr.query	The Query API provides a mechanism for building and executing queries.
org.modeshape.jcr.query.engine	This package contains several fully-functional query engine implementations.
org.modeshape.jcr.query.optimize	This package contains the Optimizer interface, a rule-based optimizer implementation, and library of optimization rules.

Classes in org.modeshape.jcr.query.optimize used by org.modeshape.jcr.query

Class and Description
Optimizer Interface for an optimizer.

Classes in org.modeshape.jcr.query.optimize used by org.modeshape.jcr.query.engine

Class and Description
Optimizer Interface for an optimizer.

Classes in org.modeshape.jcr.query.optimize used by org.modeshape.jcr.query.optimize

Class and Description
AddAccessNodes An optimizer rule that inserts an ACCESS above each SOURCE leaf node in a query plan.
AddIndexes A rule that adds indexes below PlanNode.Type.SOURCE nodes.
AddJoinConditionColumnsToSources An OptimizerRule that adds any missing columns required by the join conditions to the appropriate join source.
AddOrderingColumnsToSources An OptimizerRule that adds any missing columns required by the ordering specifications to the SORT node's PROJECT, and to the appropriate access nodes.
ChooseJoinAlgorithm An optimizer rule that choose the appropriate join algorithm and sets up any prerequisites, based upon the JoinCondition.
CopyCriteria An optimizer rule that copies SELECT nodes that apply to one side of a equi-join condition so that they also apply to the other side fo the equi-join condition.
JoinOrder An optimization rule that ensure that the order of the left and right side of a JOIN match certain join criteria, including DescendantNodeJoinCondition and ChildNodeJoinCondition.
Optimizer Interface for an optimizer.
OptimizerRule Interface that defines an Optimizer rule.
OrderIndexesByCost
PushProjects This rule attempts to ensure the proper location of PlanNode.Type.PROJECT nodes.
PushSelectCriteria An optimizer rule that attempts to push the criteria nodes in a canonical plan down as far as possible.
RaiseSelectCriteria An optimizer rule that moves up higher in the plan any SELECT node that appears below a JOIN node and that applies to selectors that are on the other side of the join.
RaiseVariableName An optimizer rule that moves up higher in the plan any variable name property to the node immediately under a dependent query node.
RemoveEmptyAccessNodes An optimizer rule that removes any ACCESS nodes that are known to never return any tuples because of conflicting constraints.
ReorderSortAndRemoveDuplicates An optimizer rule that looks for a PlanNode.Type.SORT plan node below a PlanNode.Type.DUP_REMOVE, and swaps them.
ReplaceViews An optimizer rule that replaces any SOURCE nodes that happen to be views.
RewriteAsRangeCriteria An optimizer rule that rewrites two AND-ed Constraints that constraint a dynamic operand to a range of values as a single Between constraint.
RewriteIdentityJoins An optimizer rule that rewrites JOIN nodes that have equi-join criteria where the columns involved in the equi-join are all identity columns (that is, they form a key for the table).
RewritePathAndNameCriteria An optimizer rule that rewrites Constraint trees, moving path-, name-, or depth-oriented criteria to the left-most parts of the constraint tree.
RewritePseudoColumns Changes any criteria that writes criteria containing pseudo-columns into standard criteria.
RightOuterToLeftOuterJoins An optimizer rule that converts right outer joins into left outer joins.