net.sf.openschema

Class OpenSchemaPlanner.Cache

java.lang.Object

net.sf.openschema.OpenSchemaPlanner.Cache

Enclosing class:

OpenSchemaPlanner

protected static class OpenSchemaPlanner.Cache
extends Object

Values cache.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	OpenSchemaPlanner.Cache.Entry Entry inner class

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<OpenSchemaPlanner.Node,List<OpenSchemaPlanner.Cache.Entry>>	cache The cache itself, as a map from nodes to Entry.

Constructor Summary

Constructors

Constructor and Description
Cache() Construct an empty cache.

Method Summary

Modifier and Type	Method and Description
List<Map<Object,Frame>>	fetch(OpenSchemaPlanner.Node node, Map<String,Frame> vars) Access the cache by searching for the list of values for this node and variables.
void	populate(OpenSchemaPlanner.Node node, Map<String,Frame> vars, List<Map<Object,Frame>> values) Populate the cache entry for a node and variables with the values.

Methods inherited from class java.lang.Object

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

Field Detail

cache

protected Map<OpenSchemaPlanner.Node,List<OpenSchemaPlanner.Cache.Entry>> cache

The cache itself, as a map from nodes to Entry.

Constructor Detail

Cache

public Cache()

Construct an empty cache.

Method Detail

fetch

public List<Map<Object,Frame>> fetch(OpenSchemaPlanner.Node node,
                                     Map<String,Frame> vars)

Access the cache by searching for the list of values for this node and variables. Returns null on miss.

populate

public void populate(OpenSchemaPlanner.Node node,
                     Map<String,Frame> vars,
                     List<Map<Object,Frame>> values)

Populate the cache entry for a node and variables with the values.