Package com.mckoi.database
Class QueryPlan.SingleQueryPlanNode
- java.lang.Object
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- com.mckoi.database.QueryPlan.SingleQueryPlanNode
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- All Implemented Interfaces:
QueryPlanNode
,java.io.Serializable
,java.lang.Cloneable
- Direct Known Subclasses:
QueryPlan.CachePointNode
,QueryPlan.ConstantSelectNode
,QueryPlan.CreateFunctionsNode
,QueryPlan.DistinctNode
,QueryPlan.ExhaustiveSelectNode
,QueryPlan.FunctionalSelectNode
,QueryPlan.GroupNode
,QueryPlan.LeftOuterJoinNode
,QueryPlan.MarkerNode
,QueryPlan.MultiColumnEquiSelectNode
,QueryPlan.RangeSelectNode
,QueryPlan.SimplePatternSelectNode
,QueryPlan.SimpleSelectNode
,QueryPlan.SortNode
,QueryPlan.SubsetNode
- Enclosing class:
- QueryPlan
public abstract static class QueryPlan.SingleQueryPlanNode extends java.lang.Object implements QueryPlanNode
A QueryPlanNode with a single child.- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description protected QueryPlanNode
child
The single child node.
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Constructor Summary
Constructors Modifier Constructor Description protected
SingleQueryPlanNode(QueryPlanNode child)
Constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description QueryPlanNode
child()
Returns the child plan.java.lang.Object
clone()
Deep clone.void
debugString(int level, java.lang.StringBuffer buf)
Writes a textural representation of the node to the StringBuffer at the given indent level.java.util.ArrayList
discoverCorrelatedVariables(int level, java.util.ArrayList list)
Default implementation that discovers correlated variables for the given offset level.java.util.ArrayList
discoverTableNames(java.util.ArrayList list)
Default implementation delegates responsibility to child.java.lang.String
titleString()
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Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.mckoi.database.QueryPlanNode
evaluate
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Field Detail
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child
protected QueryPlanNode child
The single child node.
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Constructor Detail
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SingleQueryPlanNode
protected SingleQueryPlanNode(QueryPlanNode child)
Constructor.
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Method Detail
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child
public QueryPlanNode child()
Returns the child plan.
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discoverTableNames
public java.util.ArrayList discoverTableNames(java.util.ArrayList list)
Default implementation delegates responsibility to child.- Specified by:
discoverTableNames
in interfaceQueryPlanNode
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discoverCorrelatedVariables
public java.util.ArrayList discoverCorrelatedVariables(int level, java.util.ArrayList list)
Default implementation that discovers correlated variables for the given offset level.- Specified by:
discoverCorrelatedVariables
in interfaceQueryPlanNode
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clone
public java.lang.Object clone() throws java.lang.CloneNotSupportedException
Deep clone.- Specified by:
clone
in interfaceQueryPlanNode
- Overrides:
clone
in classjava.lang.Object
- Throws:
java.lang.CloneNotSupportedException
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titleString
public java.lang.String titleString()
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debugString
public void debugString(int level, java.lang.StringBuffer buf)
Description copied from interface:QueryPlanNode
Writes a textural representation of the node to the StringBuffer at the given indent level.- Specified by:
debugString
in interfaceQueryPlanNode
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