Package io.ebean.common
Class BeanMap<K,E>
- java.lang.Object
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- io.ebean.common.BeanMap<K,E>
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- All Implemented Interfaces:
BeanCollection<E>
,Serializable
,Map<K,E>
public final class BeanMap<K,E> extends Object implements Map<K,E>
Map capable of lazy loading.- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from interface io.ebean.bean.BeanCollection
BeanCollection.ModifyListenMode
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Constructor Summary
Constructors Constructor Description BeanMap()
Create using a underlying LinkedHashMap.BeanMap(BeanCollectionLoader ebeanServer, EntityBean ownerBean, String propertyName)
BeanMap(Map<K,E> map)
Create with a given Map.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addBean(E bean)
Add a bean to the list/set with modifyListen notification.boolean
checkEmptyLazyLoad()
Check after the lazy load that the underlying collection is not null (handle case where join to many not outer).void
clear()
boolean
containsKey(Object key)
boolean
containsValue(Object value)
Set<Map.Entry<K,E>>
entrySet()
boolean
equals(Object obj)
Equal if obj is a Map and equal in a Map sense.E
get(Object key)
Collection<E>
getActualDetails()
Returns the collection of beans (map values).Collection<?>
getActualEntries()
Returns the map entrySet.Map<K,E>
getActualMap()
Return the actual underlying map.ExpressionList<?>
getFilterMany()
Return the filter (if any) that was used in building this collection.Set<E>
getModifyAdditions()
Return the list of objects added to the list set or map.BeanCollection.ModifyListenMode
getModifyListening()
Return the current modify listening mode.BeanCollection.ModifyListenMode
getModifyListenMode()
Return the modify listening mode this collection is using.Set<E>
getModifyRemovals()
Return the list of objects removed from the list set or map.EntityBean
getOwnerBean()
Return the bean that owns this collection.String
getPropertyName()
Return the bean property name this collection represents.BeanCollection<E>
getShallowCopy()
Return a shallow copy of this collection that is modifiable.int
hashCode()
boolean
holdsModifications()
Return true if there are underlying additions or removals.void
internalAdd(Object bean)
Add the bean to the collection.void
internalAddWithCheck(Object bean)
Add the bean with a check to see if it is already contained.void
internalPut(Object key, Object bean)
void
internalPutNull()
void
internalPutWithCheck(Object key, Object bean)
boolean
isEmpty()
Return true if the List Set or Map is empty.boolean
isPopulated()
Return true if the underlying map has been populated.boolean
isReadOnly()
Return true if the collection should be treated as readOnly and no elements can be added or removed etc.boolean
isReference()
Return true if this is a reference (lazy loading) bean collection.boolean
isRegisteredWithLoadContext()
Return true if the collection has been registered with the batch loading context.boolean
isSkipSave()
Return true if the collection is uninitialised or is empty without any held modifications.Set<K>
keySet()
void
loadFrom(BeanCollection<?> other)
Load bean from another collection.void
modifyAddition(E bean)
Add an object to the additions list.void
modifyRemoval(Object bean)
Add an object to the deletions list.void
modifyReset()
Reset the set of additions and deletions.E
put(K key, E value)
void
putAll(Map<? extends K,? extends E> puts)
E
remove(Object key)
void
removeBean(E bean)
Remove a bean to the list/set with modifyListen notification.void
reset(EntityBean ownerBean, String propertyName)
Reset the collection back to an empty state ready for reloading.void
setActualMap(Map<?,?> map)
Set the actual underlying map.void
setDisableLazyLoad(boolean disableLazyLoad)
Set the disableLazyLoad state.void
setFilterMany(ExpressionList<?> filterMany)
Set the filter that was used in building this collection.void
setLoader(BeanCollectionLoader loader)
Set the loader that will be used to lazy/query load this collection.void
setModifyListening(BeanCollection.ModifyListenMode mode)
set modifyListening to be on or off.void
setReadOnly(boolean readOnly)
Set to true if you want the BeanCollection to be treated as read only.int
size()
Return the number of elements in the List Set or Map.String
toString()
Collection<E>
values()
boolean
wasTouched()
Has been modified by an addition or removal.-
Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll
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Constructor Detail
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BeanMap
public BeanMap()
Create using a underlying LinkedHashMap.
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BeanMap
public BeanMap(BeanCollectionLoader ebeanServer, EntityBean ownerBean, String propertyName)
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Method Detail
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reset
public void reset(EntityBean ownerBean, String propertyName)
Description copied from interface:BeanCollection
Reset the collection back to an empty state ready for reloading.This is done as part of bean refresh.
- Specified by:
reset
in interfaceBeanCollection<K>
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isSkipSave
public boolean isSkipSave()
Description copied from interface:BeanCollection
Return true if the collection is uninitialised or is empty without any held modifications.Returning true means can safely skip cascade save for this bean collection.
- Specified by:
isSkipSave
in interfaceBeanCollection<K>
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loadFrom
public void loadFrom(BeanCollection<?> other)
Description copied from interface:BeanCollection
Load bean from another collection.- Specified by:
loadFrom
in interfaceBeanCollection<K>
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internalPutNull
public void internalPutNull()
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internalPut
public void internalPut(Object key, Object bean)
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internalPutWithCheck
public void internalPutWithCheck(Object key, Object bean)
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internalAddWithCheck
public void internalAddWithCheck(Object bean)
Description copied from interface:BeanCollection
Add the bean with a check to see if it is already contained.- Specified by:
internalAddWithCheck
in interfaceBeanCollection<K>
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internalAdd
public void internalAdd(Object bean)
Description copied from interface:BeanCollection
Add the bean to the collection.This is disallowed for BeanMap.
- Specified by:
internalAdd
in interfaceBeanCollection<K>
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isPopulated
public boolean isPopulated()
Return true if the underlying map has been populated. Returns false if it has a deferred fetch pending.- Specified by:
isPopulated
in interfaceBeanCollection<K>
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isReference
public boolean isReference()
Return true if this is a reference (lazy loading) bean collection. This is the same as !isPopulated();- Specified by:
isReference
in interfaceBeanCollection<K>
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checkEmptyLazyLoad
public boolean checkEmptyLazyLoad()
Description copied from interface:BeanCollection
Check after the lazy load that the underlying collection is not null (handle case where join to many not outer).That is, if the collection was not loaded due to filterMany predicates etc then make sure the collection is set to empty.
- Specified by:
checkEmptyLazyLoad
in interfaceBeanCollection<K>
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setActualMap
public void setActualMap(Map<?,?> map)
Set the actual underlying map. Used for performing lazy fetch.
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getActualMap
public Map<K,E> getActualMap()
Return the actual underlying map.
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getActualDetails
public Collection<E> getActualDetails()
Returns the collection of beans (map values).- Specified by:
getActualDetails
in interfaceBeanCollection<K>
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getActualEntries
public Collection<?> getActualEntries()
Returns the map entrySet.This is because the key values may need to be set against the details (so they don't need to be set twice).
- Specified by:
getActualEntries
in interfaceBeanCollection<K>
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hashCode
public int hashCode()
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containsKey
public boolean containsKey(Object key)
- Specified by:
containsKey
in interfaceMap<K,E>
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containsValue
public boolean containsValue(Object value)
- Specified by:
containsValue
in interfaceMap<K,E>
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isEmpty
public boolean isEmpty()
Description copied from interface:BeanCollection
Return true if the List Set or Map is empty.
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addBean
public void addBean(E bean)
Description copied from interface:BeanCollection
Add a bean to the list/set with modifyListen notification.- Specified by:
addBean
in interfaceBeanCollection<K>
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removeBean
public void removeBean(E bean)
Description copied from interface:BeanCollection
Remove a bean to the list/set with modifyListen notification.- Specified by:
removeBean
in interfaceBeanCollection<K>
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size
public int size()
Description copied from interface:BeanCollection
Return the number of elements in the List Set or Map.
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getShallowCopy
public BeanCollection<E> getShallowCopy()
Description copied from interface:BeanCollection
Return a shallow copy of this collection that is modifiable.- Specified by:
getShallowCopy
in interfaceBeanCollection<K>
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getOwnerBean
public EntityBean getOwnerBean()
Description copied from interface:BeanCollection
Return the bean that owns this collection.- Specified by:
getOwnerBean
in interfaceBeanCollection<E>
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getPropertyName
public String getPropertyName()
Description copied from interface:BeanCollection
Return the bean property name this collection represents.- Specified by:
getPropertyName
in interfaceBeanCollection<E>
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getFilterMany
public ExpressionList<?> getFilterMany()
Description copied from interface:BeanCollection
Return the filter (if any) that was used in building this collection.This is so that the filter can be applied on refresh.
- Specified by:
getFilterMany
in interfaceBeanCollection<E>
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setFilterMany
public void setFilterMany(ExpressionList<?> filterMany)
Description copied from interface:BeanCollection
Set the filter that was used in building this collection.- Specified by:
setFilterMany
in interfaceBeanCollection<E>
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setDisableLazyLoad
public void setDisableLazyLoad(boolean disableLazyLoad)
Description copied from interface:BeanCollection
Set the disableLazyLoad state.- Specified by:
setDisableLazyLoad
in interfaceBeanCollection<E>
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isRegisteredWithLoadContext
public boolean isRegisteredWithLoadContext()
Description copied from interface:BeanCollection
Return true if the collection has been registered with the batch loading context.- Specified by:
isRegisteredWithLoadContext
in interfaceBeanCollection<E>
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setLoader
public void setLoader(BeanCollectionLoader loader)
Description copied from interface:BeanCollection
Set the loader that will be used to lazy/query load this collection.This is effectively the batch loading context this collection is registered with.
- Specified by:
setLoader
in interfaceBeanCollection<E>
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isReadOnly
public boolean isReadOnly()
Description copied from interface:BeanCollection
Return true if the collection should be treated as readOnly and no elements can be added or removed etc.- Specified by:
isReadOnly
in interfaceBeanCollection<E>
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setReadOnly
public void setReadOnly(boolean readOnly)
Description copied from interface:BeanCollection
Set to true if you want the BeanCollection to be treated as read only. This means no elements can be added or removed etc.- Specified by:
setReadOnly
in interfaceBeanCollection<E>
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getModifyListening
public BeanCollection.ModifyListenMode getModifyListening()
Description copied from interface:BeanCollection
Return the current modify listening mode. Can be null for on newly created beans.- Specified by:
getModifyListening
in interfaceBeanCollection<E>
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setModifyListening
public void setModifyListening(BeanCollection.ModifyListenMode mode)
set modifyListening to be on or off.- Specified by:
setModifyListening
in interfaceBeanCollection<E>
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getModifyListenMode
public BeanCollection.ModifyListenMode getModifyListenMode()
Return the modify listening mode this collection is using.
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modifyAddition
public void modifyAddition(E bean)
Description copied from interface:BeanCollection
Add an object to the additions list.This will potentially end up as an insert into a intersection table for a ManyToMany.
- Specified by:
modifyAddition
in interfaceBeanCollection<E>
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modifyRemoval
public void modifyRemoval(Object bean)
Description copied from interface:BeanCollection
Add an object to the deletions list.This will potentially end up as an delete from an intersection table for a ManyToMany.
- Specified by:
modifyRemoval
in interfaceBeanCollection<E>
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modifyReset
public void modifyReset()
Description copied from interface:BeanCollection
Reset the set of additions and deletions. This is called after the additions and removals have been processed.- Specified by:
modifyReset
in interfaceBeanCollection<E>
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getModifyAdditions
public Set<E> getModifyAdditions()
Description copied from interface:BeanCollection
Return the list of objects added to the list set or map. These will used to insert rows into the intersection table of a ManyToMany.- Specified by:
getModifyAdditions
in interfaceBeanCollection<E>
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getModifyRemovals
public Set<E> getModifyRemovals()
Description copied from interface:BeanCollection
Return the list of objects removed from the list set or map. These will used to delete rows from the intersection table of a ManyToMany.- Specified by:
getModifyRemovals
in interfaceBeanCollection<E>
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holdsModifications
public boolean holdsModifications()
Return true if there are underlying additions or removals.- Specified by:
holdsModifications
in interfaceBeanCollection<E>
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wasTouched
public boolean wasTouched()
Description copied from interface:BeanCollection
Has been modified by an addition or removal.- Specified by:
wasTouched
in interfaceBeanCollection<E>
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