Uses of Package
org.jboss.dna.graph.query.optimize

Packages that use org.jboss.dna.graph.query.optimize

org.jboss.dna.graph.query	The Query API provides a mechanism for building and executing queries.
org.jboss.dna.graph.query.optimize	This package contains the Optimizer interface, a rule-based optimizer implementation, and library of optimization rules.

Classes in org.jboss.dna.graph.query.optimize used by org.jboss.dna.graph.query

Optimizer
Interface for an optimizer.

Classes in org.jboss.dna.graph.query.optimize used by org.jboss.dna.graph.query.optimize

AddAccessNodes
An optimizer rule that inserts an ACCESS above each SOURCE leaf node in a query plan.

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.

Optimizer
Interface for an optimizer.

OptimizerRule
Interface that defines an Optimizer rule.

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.

RemoveEmptyAccessNodes
An optimizer rule that removes any ACCESS nodes that are known to never return any tuples because of conflicting constraints.

ReplaceAliases
An optimizer rule that changes any nodes that make use of an alias for a SOURCE, including columns, including criteria, project nodes, etc.

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).

RightOuterToLeftOuterJoins
An optimizer rule that converts right outer joins into left outer joins.