public class AttributeIndexRegistry extends Object
The main purpose of this class is to maintain decorators around ordered composite indexes to allow transparent querying on their first components.
Constructor and Description |
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AttributeIndexRegistry() |
Modifier and Type | Method and Description |
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void |
clear()
Clears this registry by unregistering all previously registered indexes.
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InternalIndex |
match(String attribute,
QueryContext.IndexMatchHint matchHint)
Matches an index for the given attribute and match hint.
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void |
register(InternalIndex index)
Registers the given index in this registry.
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public void register(InternalIndex index)
This method expects external thread access synchronization applied, so there is no more than one writer at any given time.
index
- the index to register.Indexes.addOrGetIndex(java.lang.String, boolean)
public InternalIndex match(String attribute, QueryContext.IndexMatchHint matchHint)
attribute
- the attribute to match an index for.matchHint
- the match hint; QueryContext.IndexMatchHint.EXACT_NAME
is not supported by this method.null
if nothing matched.QueryContext.IndexMatchHint
public void clear()
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