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Cumulus4j API (1.1.0) |
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java.lang.Objectorg.cumulus4j.store.model.IndexEntryFactoryRegistry
public class IndexEntryFactoryRegistry
Registry responsible for the extension-point org.cumulus4j.store.index_mapping
.
This registry maps an IndexEntryFactory
to a java-type or a combination of java-,
jdbc- and sql-type.
There is one instance of IndexEntryFactoryRegistry
per Cumulus4jStoreManager
.
Constructor Summary | |
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IndexEntryFactoryRegistry(Cumulus4jStoreManager storeMgr)
Create a new registry instance. |
Method Summary | |
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Set<Class<? extends IndexEntry>> |
getIndexEntryClasses()
|
IndexEntryFactory |
getIndexEntryFactory(ExecutionContext executionContext,
FieldMeta fieldMeta,
boolean throwExceptionIfNotFound)
Get the appropriate IndexEntryFactory subclass instance for the given FieldMeta . |
IndexEntryFactory |
getIndexEntryFactoryForContainerSize()
Get the special IndexEntryFactory used for container-sizes. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public IndexEntryFactoryRegistry(Cumulus4jStoreManager storeMgr)
storeMgr
- the owning store-manager.Method Detail |
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public IndexEntryFactory getIndexEntryFactory(ExecutionContext executionContext, FieldMeta fieldMeta, boolean throwExceptionIfNotFound)
IndexEntryFactory
subclass instance for the given FieldMeta
.
executionContext
- the context.fieldMeta
- either a FieldMeta
for a primary
field or a sub-FieldMeta
,
if a Collection
element, a Map
key, a Map
value or similar are indexed.throwExceptionIfNotFound
- throw an exception instead of returning null
, if there is no IndexEntryFactory
for
the given fieldMeta
.
IndexEntryFactory
or null
, if none is registered and throwExceptionIfNotFound == false
.public IndexEntryFactory getIndexEntryFactoryForContainerSize()
IndexEntryFactory
used for container-sizes. This special index
allows using Collection.isEmpty()
, Collection.size()
and the like in JDOQL
(or "SIZE(...)" and the like in JPQL).
IndexEntryFactory
used for container-sizes.public Set<Class<? extends IndexEntry>> getIndexEntryClasses()
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