com.mckoi.database

Class QueryPlan.NaturalJoinNode

java.lang.Object

com.mckoi.database.QueryPlan.BranchQueryPlanNode

com.mckoi.database.QueryPlan.NaturalJoinNode

All Implemented Interfaces:

QueryPlanNode, Serializable, Cloneable

Enclosing class:

QueryPlan

public static class QueryPlan.NaturalJoinNode
extends QueryPlan.BranchQueryPlanNode

A branch node for naturally joining two tables together. These branches should be optimized out if possible because they result in huge results.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.mckoi.database.QueryPlan.BranchQueryPlanNode

left, right

Constructor Summary

Constructors

Constructor and Description
NaturalJoinNode(QueryPlanNode left, QueryPlanNode right)

Method Summary

Modifier and Type	Method and Description
Table	evaluate(QueryContext context) Evaluates the node and returns the result as a Table.
String	titleString()

Methods inherited from class com.mckoi.database.QueryPlan.BranchQueryPlanNode

clone, debugString, discoverCorrelatedVariables, discoverTableNames, left, right

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NaturalJoinNode

public NaturalJoinNode(QueryPlanNode left,
                       QueryPlanNode right)

Method Detail

evaluate

public Table evaluate(QueryContext context)

Description copied from interface: QueryPlanNode

Evaluates the node and returns the result as a Table. The VariableResolver resolves any outer variables

titleString

public String titleString()

Overrides:

titleString in class QueryPlan.BranchQueryPlanNode