Package org.apache.openjpa.kernel
Class AbstractPCData
- java.lang.Object
-
- org.apache.openjpa.kernel.AbstractPCData
-
- All Implemented Interfaces:
Serializable
,PCData
- Direct Known Subclasses:
PCDataImpl
public abstract class AbstractPCData extends Object implements PCData
Abstract base class which implements core PCData behavior.- Author:
- Patrick Linskey, Abe White
- See Also:
- Serialized Form
-
-
Constructor Summary
Constructors Constructor Description AbstractPCData()
-
Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract BitSet
getLoaded()
Return the loaded field mask.boolean
isLoaded(int field)
Whether the given field index has stored data.abstract AbstractPCData
newEmbeddedPCData(OpenJPAStateManager sm)
Create a new pcdata for holding the state of an embedded instance.protected Object
toData(FieldMetaData fmd, Object val, StoreContext ctx)
Transform the given field value to a data value for caching.protected Object
toEmbeddedData(Object val, StoreContext ctx)
Return the value to cache for the given embedded PC.protected Object
toEmbeddedField(OpenJPAStateManager sm, ValueMetaData vmd, Object data, FetchConfiguration fetch, Object context)
Transform the given data into an embedded PC field value.protected Object
toField(OpenJPAStateManager sm, FieldMetaData fmd, Object data, FetchConfiguration fetch, Object context)
Transform the given data value into its field value.protected Object
toNestedData(ValueMetaData vmd, Object val, StoreContext ctx)
Transform the given nested value to a cachable value.protected Object
toNestedField(OpenJPAStateManager sm, ValueMetaData vmd, Object data, FetchConfiguration fetch, Object context)
Transform the given data value to its field value.protected Collection
toNestedFields(OpenJPAStateManager sm, ValueMetaData vmd, Collection data, FetchConfiguration fetch, Object context)
Transform the given data value to its field value.protected Object
toRelationData(Object val, StoreContext ctx)
Return the value to cache for the given object.protected Object
toRelationField(OpenJPAStateManager sm, ValueMetaData vmd, Object data, FetchConfiguration fetch, Object context)
Transform the given data into a relation field value.protected Object[]
toRelationFields(OpenJPAStateManager sm, Object data, FetchConfiguration fetch)
Transform the given data into relation field values.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
-
Methods inherited from interface org.apache.openjpa.kernel.PCData
getCache, getData, getId, getImplData, getType, getVersion, load, load, setImplData, setVersion, store, store
-
-
-
-
Field Detail
-
NULL
public static final Object NULL
-
-
Method Detail
-
getLoaded
public abstract BitSet getLoaded()
Return the loaded field mask.
-
newEmbeddedPCData
public abstract AbstractPCData newEmbeddedPCData(OpenJPAStateManager sm)
Create a new pcdata for holding the state of an embedded instance.
-
isLoaded
public boolean isLoaded(int field)
Description copied from interface:PCData
Whether the given field index has stored data.
-
toField
protected Object toField(OpenJPAStateManager sm, FieldMetaData fmd, Object data, FetchConfiguration fetch, Object context)
Transform the given data value into its field value.
-
toNestedField
protected Object toNestedField(OpenJPAStateManager sm, ValueMetaData vmd, Object data, FetchConfiguration fetch, Object context)
Transform the given data value to its field value. The data value may be a key, value, or element of a map or collection.
-
toNestedFields
protected Collection toNestedFields(OpenJPAStateManager sm, ValueMetaData vmd, Collection data, FetchConfiguration fetch, Object context)
Transform the given data value to its field value. The data value may be a key, value, or element of a map or collection.
-
toRelationField
protected Object toRelationField(OpenJPAStateManager sm, ValueMetaData vmd, Object data, FetchConfiguration fetch, Object context)
Transform the given data into a relation field value. Default implementation assumes the data is an oid.
-
toRelationFields
protected Object[] toRelationFields(OpenJPAStateManager sm, Object data, FetchConfiguration fetch)
Transform the given data into relation field values. Default implementation assumes the data is an oid.
-
toEmbeddedField
protected Object toEmbeddedField(OpenJPAStateManager sm, ValueMetaData vmd, Object data, FetchConfiguration fetch, Object context)
Transform the given data into an embedded PC field value. Default implementation assumes the data is anAbstractPCData
.
-
toData
protected Object toData(FieldMetaData fmd, Object val, StoreContext ctx)
Transform the given field value to a data value for caching. ReturnNULL
if unable to cache.
-
toNestedData
protected Object toNestedData(ValueMetaData vmd, Object val, StoreContext ctx)
Transform the given nested value to a cachable value. ReturnNULL
if the value cannot be cached.
-
toRelationData
protected Object toRelationData(Object val, StoreContext ctx)
Return the value to cache for the given object. Caches its oid by default.
-
toEmbeddedData
protected Object toEmbeddedData(Object val, StoreContext ctx)
Return the value to cache for the given embedded PC. Caches aPCData
fromnewEmbeddedPCData(org.apache.openjpa.kernel.OpenJPAStateManager)
by default.
-
-