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java.lang.Objectcom.mckoi.database.QueryPlan.SingleQueryPlanNode
com.mckoi.database.QueryPlan.CachePointNode
public static class QueryPlan.CachePointNode
A cache point node that only evaluates the child if the result can not be found in the cache with the given unique id.
Field Summary |
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Fields inherited from class com.mckoi.database.QueryPlan.SingleQueryPlanNode |
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child |
Constructor Summary | |
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QueryPlan.CachePointNode(QueryPlanNode child)
Constructor. |
Method Summary | |
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java.lang.Object |
clone()
Deep clone. |
Table |
evaluate(QueryContext context)
Evaluates the node and returns the result as a Table. |
java.lang.String |
titleString()
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Methods inherited from class com.mckoi.database.QueryPlan.SingleQueryPlanNode |
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child, debugString, discoverCorrelatedVariables, discoverTableNames |
Methods inherited from class java.lang.Object |
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equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public QueryPlan.CachePointNode(QueryPlanNode child)
Method Detail |
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public Table evaluate(QueryContext context)
QueryPlanNode
public java.lang.Object clone() throws java.lang.CloneNotSupportedException
QueryPlan.SingleQueryPlanNode
clone
in interface QueryPlanNode
clone
in class QueryPlan.SingleQueryPlanNode
java.lang.CloneNotSupportedException
public java.lang.String titleString()
titleString
in class QueryPlan.SingleQueryPlanNode
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