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java.lang.Objectjava.util.AbstractCollection
java.util.AbstractSet
java.util.HashSet
org.jpox.sco.HashSet
A mutable second-class HashSet object. Backed by a SetStore object. Allows caching in the delegate of the elements of the HashSet. This can be enabled globally for the PMF, or individually for this particular HashSet.
Field Summary | |
protected CollectionStore |
backingStore
The "backing store" |
protected java.util.HashSet |
delegate
The internal "delegate". |
protected boolean |
isCacheLoaded
Status flag whether the collection is loaded into the cache. |
protected boolean |
useCache
Whether to use caching. |
Constructor Summary | |
HashSet(StateManager ownerSM,
java.lang.String fieldName)
Constructor, using the StateManager of the "owner" and the field name. |
Method Summary | |
boolean |
add(java.lang.Object element)
Method to add an element to the HashSet. |
boolean |
addAll(java.util.Collection c)
Method to add a collection to the HashSet. |
void |
attachCopy(java.lang.Object value)
Method to return an attached copy of the passed (detached) value. |
void |
clear()
Method to clear the HashSet |
java.lang.Object |
clone()
Creates and returns a copy of this object. |
boolean |
contains(java.lang.Object element)
Accessor for whether an element is contained in this Set. |
boolean |
containsAll(java.util.Collection c)
Accessor for whether a collection is contained in this Set. |
void |
detach(FetchPlanState state)
Method to detach the PersistenceCapable elements of this container. |
java.lang.Object |
detachCopy(FetchPlanState state)
Method to return a detached copy of the container. |
boolean |
equals(java.lang.Object o)
Equality operator. |
java.lang.Class |
getElementType()
Accessor for the element type. |
java.lang.String |
getFieldName()
Accessor for the field name. |
java.lang.Object |
getOwner()
Accessor for the owner object. |
int |
hashCode()
Hashcode operator. |
boolean |
isEmpty()
Accessor for whether the HashSet is empty. |
java.util.Iterator |
iterator()
Accessor for an iterator for the Set. |
void |
load()
Method to effect the load of the data in the SCO. |
protected void |
loadFromStore()
Method to load all elements from the "backing store" where appropriate. |
void |
makeDirty()
Utility to mark the object as dirty |
void |
makeTransient(FetchPlanState state)
Method to make transient all elements of this container. |
QueryExpression |
newQueryStatement()
Method to generate a QueryStatement for the SCO. |
QueryExpression |
newQueryStatement(java.lang.Class candidate_class)
Method to return a QueryStatement, using the specified candidate class. |
Query.ResultObjectFactory |
newResultObjectFactory(QueryExpression stmt,
boolean ignoreCache,
java.lang.Class resultClass,
boolean useFetchPlan)
Method to return a ResultObjectFactory for the SCO. |
boolean |
remove(java.lang.Object element)
Method to remove an element from the HashSet. |
boolean |
removeAll(java.util.Collection c)
Method to remove all elements from the collection from the HashSet. |
boolean |
retainAll(java.util.Collection c)
Method to retain a Collection of elements (and remove all others). |
void |
runReachability(java.util.Set reachables)
Method to run reachability on this SCO. |
void |
setValueFrom(java.lang.Object o,
boolean forUpdate)
Mutator for setting using an object. |
int |
size()
Accessor for the size of the HashSet. |
java.lang.Object[] |
toArray()
Method to return the list as an array. |
java.lang.Object[] |
toArray(java.lang.Object[] a)
Method to return the list as an array. |
void |
unsetOwner()
Method to unset the owner and field information. |
void |
updateEmbeddedElement(java.lang.Object element,
int fieldNumber,
java.lang.Object value)
Method to update an embedded element in this collection. |
protected java.lang.Object |
writeReplace()
The writeReplace method is called when ObjectOutputStream is preparing to write the object to the stream. |
Methods inherited from class java.util.AbstractCollection |
toString |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
protected CollectionStore backingStore
protected java.util.HashSet delegate
protected boolean useCache
protected boolean isCacheLoaded
Constructor Detail |
public HashSet(StateManager ownerSM, java.lang.String fieldName)
ownerSM
- The owner StateManagerfieldName
- The name of the field of the SCO.Method Detail |
public java.lang.Class getElementType()
getElementType
in interface SCOCollection
public void load()
load
in interface SCOLazyLoading
public void updateEmbeddedElement(java.lang.Object element, int fieldNumber, java.lang.Object value)
updateEmbeddedElement
in interface SCOCollection
element
- The elementfieldNumber
- Number of field in the elementvalue
- New value for this fieldpublic void setValueFrom(java.lang.Object o, boolean forUpdate)
setValueFrom
in interface SCO
o
- The object to set fromforUpdate
- Whether to update the datastore with this valuepublic java.lang.String getFieldName()
getFieldName
in interface SCO
public java.lang.Object getOwner()
getOwner
in interface SCO
public void unsetOwner()
unsetOwner
in interface SCO
public void makeDirty()
public void runReachability(java.util.Set reachables)
runReachability
in interface SCO
reachables
- List of StateManagers reachable so farpublic void makeTransient(FetchPlanState state)
makeTransient
in interface SCO
state
- State for the fetchplan processpublic void detach(FetchPlanState state)
detach
in interface SCO
state
- State for the detachment processpublic java.lang.Object detachCopy(FetchPlanState state)
detachCopy
in interface SCO
state
- State for detachment process
public void attachCopy(java.lang.Object value)
attachCopy
in interface SCO
value
- The new (collection) valuepublic QueryExpression newQueryStatement()
newQueryStatement
in interface Queryable
public QueryExpression newQueryStatement(java.lang.Class candidate_class)
newQueryStatement
in interface Queryable
candidate_class
- the candidate class
Queryable.newQueryStatement()
public Query.ResultObjectFactory newResultObjectFactory(QueryExpression stmt, boolean ignoreCache, java.lang.Class resultClass, boolean useFetchPlan)
newResultObjectFactory
in interface Queryable
stmt
- The QueryStatementignoreCache
- Whether to ignore the cacheresultClass
- Whether to create objects of a particular classuseFetchPlan
- whether to use the fetch plan to retrieve fields in the same query
public java.lang.Object clone()
clone
in interface SCO
public boolean contains(java.lang.Object element)
contains
in interface SCOMtoN
element
- The element
public boolean containsAll(java.util.Collection c)
containsAll
in interface java.util.Set
c
- The collection
public boolean equals(java.lang.Object o)
equals
in interface java.util.Set
o
- The object to compare against.
public int hashCode()
hashCode
in interface java.util.Set
public boolean isEmpty()
isEmpty
in interface Queryable
public java.util.Iterator iterator()
iterator
in interface java.util.Set
public int size()
size
in interface java.util.Set
public java.lang.Object[] toArray()
toArray
in interface java.util.Set
public java.lang.Object[] toArray(java.lang.Object[] a)
toArray
in interface java.util.Set
a
- The runtime types of the array being defined by this param
public boolean add(java.lang.Object element)
add
in interface java.util.Set
element
- The new element
public boolean addAll(java.util.Collection c)
addAll
in interface java.util.Set
c
- The collection
public void clear()
clear
in interface java.util.Set
public boolean remove(java.lang.Object element)
remove
in interface java.util.Set
element
- The element
public boolean removeAll(java.util.Collection c)
removeAll
in interface java.util.Set
c
- The collection of elements to remove
public boolean retainAll(java.util.Collection c)
retainAll
in interface java.util.Set
c
- The collection to retain
protected java.lang.Object writeReplace() throws java.io.ObjectStreamException
java.io.ObjectStreamException
protected void loadFromStore()
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