Package org.apache.cayenne.util
Class ObjectContextQueryAction
- java.lang.Object
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- org.apache.cayenne.util.ObjectContextQueryAction
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public abstract class ObjectContextQueryAction extends Object
A helper class that implementsDataChannel.onQuery(ObjectContext, Query)logic on behalf of an ObjectContext.Intended for internal use only.
- Since:
- 1.2
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Field Summary
Fields Modifier and Type Field Description protected ObjectContextactingContextprotected static booleanDONEprotected QueryMetadatametadataprotected Queryqueryprotected booleanqueryOriginatorprotected QueryResponseresponseprotected ObjectContexttargetContext
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Constructor Summary
Constructors Constructor Description ObjectContextQueryAction(ObjectContext actingContext, ObjectContext targetContext, Query query)
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description QueryResponseexecute()Worker method that performs internal query.protected QueryCacheEntryFactorygetCacheObjectFactory()protected QueryCachegetQueryCache()protected booleaninterceptInternalQuery()protected booleaninterceptLocalCache()protected voidinterceptObjectConversion()Transfers fetched objects into the target context if it is different from "acting" context.protected booleaninterceptOIDQuery()protected abstract booleaninterceptPaginatedQuery()protected abstract booleaninterceptRefreshQuery()protected booleaninterceptRelationshipQuery()protected ObjectpolymorphicObjectFromCache(ObjectId superOid)protected voidrunQuery()Fetches data from the channel.
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Field Detail
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DONE
protected static final boolean DONE
- See Also:
- Constant Field Values
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targetContext
protected ObjectContext targetContext
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actingContext
protected ObjectContext actingContext
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query
protected Query query
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metadata
protected QueryMetadata metadata
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queryOriginator
protected boolean queryOriginator
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response
protected transient QueryResponse response
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Constructor Detail
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ObjectContextQueryAction
public ObjectContextQueryAction(ObjectContext actingContext, ObjectContext targetContext, Query query)
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Method Detail
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execute
public QueryResponse execute()
Worker method that performs internal query.
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interceptObjectConversion
protected void interceptObjectConversion()
Transfers fetched objects into the target context if it is different from "acting" context. Note that when this method is invoked, result objects are already registered with acting context by the parent channel.
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interceptInternalQuery
protected boolean interceptInternalQuery()
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interceptOIDQuery
protected boolean interceptOIDQuery()
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interceptRelationshipQuery
protected boolean interceptRelationshipQuery()
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interceptPaginatedQuery
protected abstract boolean interceptPaginatedQuery()
- Since:
- 3.0
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interceptRefreshQuery
protected abstract boolean interceptRefreshQuery()
- Since:
- 3.0
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interceptLocalCache
protected boolean interceptLocalCache()
- Since:
- 3.0
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getQueryCache
protected QueryCache getQueryCache()
- Since:
- 3.0
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getCacheObjectFactory
protected QueryCacheEntryFactory getCacheObjectFactory()
- Since:
- 3.0
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runQuery
protected void runQuery()
Fetches data from the channel.
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