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java.lang.Objectjava.util.AbstractMap
java.util.HashMap
java.util.LinkedHashMap
org.jpox.sco.LinkedHashMap
A mutable second-class LinkedHashMap object. Backed by a MapStore object. Only available for JRE 1.4 or above.
Field Summary | |
protected MapStore |
backingStore
The "backing store" |
protected java.util.LinkedHashMap |
delegate
The internal "delegate". |
protected boolean |
isCacheLoaded
Status flag whether the collection is loaded into the cache. |
protected boolean |
useCache
Whether to use "delegate" caching. |
Constructor Summary | |
LinkedHashMap(StateManager ownerSM,
java.lang.String fieldName)
Constructor |
Method Summary | |
void |
attachCopy(java.lang.Object value)
Method to return an attached copy of the passed (detached) value. |
void |
clear()
Method to clear the LinkedHashMap. |
java.lang.Object |
clone()
Creates and returns a copy of this object. |
boolean |
containsKey(java.lang.Object key)
Method to return if the map contains this key |
boolean |
containsValue(java.lang.Object value)
Method to return if the map contains this value. |
void |
detach(FetchPlanState state)
Method to detach this map and its contents. |
java.lang.Object |
detachCopy(FetchPlanState state)
Method to return a detached copy of the container. |
java.util.Set |
entrySet()
Accessor for the set of entries in the Map. |
boolean |
equals(java.lang.Object o)
Method to check the equality of this map, and another. |
java.lang.Object |
get(java.lang.Object key)
Accessor for the value stored against a key. |
java.lang.String |
getFieldName()
Accessor for the field name that this LinkedHashMap relates to. |
java.lang.Object |
getOwner()
Accessor for the owner that this LinkedHashMap relates to. |
int |
hashCode()
Method to generate a hashcode for this Map. |
boolean |
isEmpty()
Method to return if the Map is empty. |
java.util.Set |
keySet()
Accessor for the set of keys in the Map. |
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 this map and its contents. |
QueryExpression |
newQueryStatement()
Method to return a new Query statement for the Map. |
QueryExpression |
newQueryStatement(java.lang.Class candidate_class)
Method to return a new Query statement for the Map given the candidate class. |
Query.ResultObjectFactory |
newResultObjectFactory(QueryExpression stmt,
boolean ignoreCache,
java.lang.Class resultClass,
boolean useFetchPlan)
Method to return a new result object factory for processing of Query statements. |
java.lang.Object |
put(java.lang.Object key,
java.lang.Object value)
Method to add a value against a key to the LinkedHashMap. |
void |
putAll(java.util.Map m)
Method to add the specified Map's values under their keys here. |
java.lang.Object |
remove(java.lang.Object key)
Method to remove the value for a key from the LinkedHashMap. |
void |
runReachability(java.util.Set reachables)
Method to run reachability on this SCO. |
void |
setValueFrom(java.lang.Object o,
boolean forUpdate)
Mutator to set the value using an object. |
int |
size()
Method to return the size of the Map. |
void |
unsetOwner()
Method to unset the owner and field details. |
void |
updateEmbeddedKey(java.lang.Object key,
int fieldNumber,
java.lang.Object newValue)
Method to update an embedded key in this map. |
void |
updateEmbeddedValue(java.lang.Object value,
int fieldNumber,
java.lang.Object newValue)
Method to update an embedded value in this map. |
java.util.Collection |
values()
Accessor for the set of values in the Map. |
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.LinkedHashMap |
removeEldestEntry |
Methods inherited from class java.util.AbstractMap |
toString |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
protected MapStore backingStore
protected java.util.LinkedHashMap delegate
protected boolean useCache
protected boolean isCacheLoaded
Constructor Detail |
public LinkedHashMap(StateManager ownerSM, java.lang.String fieldName)
ownerSM
- the owner of this MapfieldName
- the declared field nameMethod Detail |
public void load()
load
in interface SCOLazyLoading
public void updateEmbeddedKey(java.lang.Object key, int fieldNumber, java.lang.Object newValue)
updateEmbeddedKey
in interface SCOMap
key
- The keyfieldNumber
- Number of field in the keynewValue
- New value for this fieldpublic void updateEmbeddedValue(java.lang.Object value, int fieldNumber, java.lang.Object newValue)
updateEmbeddedValue
in interface SCOMap
value
- The valuefieldNumber
- Number of field in the valuenewValue
- New value for this fieldpublic void setValueFrom(java.lang.Object o, boolean forUpdate)
setValueFrom
in interface SCO
o
- Object to set value using.forUpdate
- 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
- value class.
Queryable.newQueryStatement()
public Query.ResultObjectFactory newResultObjectFactory(QueryExpression stmt, boolean ignoreCache, java.lang.Class resultClass, boolean useFetchPlan)
newResultObjectFactory
in interface Queryable
stmt
- The Query Statement.ignoreCache
- Whether to ignore the cache.resultClass
- 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()
Mutable second-class Objects are required to provide a public clone method in order to allow for copying PersistenceCapable objects. In contrast to Object.clone(), this method must not throw a CloneNotSupportedException.
clone
in interface SCO
public boolean containsKey(java.lang.Object key)
containsKey
in interface java.util.Map
key
- The key
public boolean containsValue(java.lang.Object value)
containsValue
in interface java.util.Map
value
- The value
public java.util.Set entrySet()
entrySet
in interface java.util.Map
public boolean equals(java.lang.Object o)
equals
in interface java.util.Map
o
- The map to compare against.
public java.lang.Object get(java.lang.Object key)
get
in interface java.util.Map
key
- The key
public int hashCode()
hashCode
in interface java.util.Map
public boolean isEmpty()
isEmpty
in interface Queryable
public java.util.Set keySet()
keySet
in interface java.util.Map
public int size()
size
in interface java.util.Map
public java.util.Collection values()
values
in interface java.util.Map
public void clear()
clear
in interface java.util.Map
public java.lang.Object put(java.lang.Object key, java.lang.Object value)
put
in interface java.util.Map
key
- The keyvalue
- The value
public void putAll(java.util.Map m)
putAll
in interface java.util.Map
m
- The mappublic java.lang.Object remove(java.lang.Object key)
remove
in interface java.util.Map
key
- The key to remove
protected java.lang.Object writeReplace() throws java.io.ObjectStreamException
java.io.ObjectStreamException
protected void loadFromStore()
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