Package org.apache.catalina.util
Class ResourceSet<T>
java.lang.Object
java.util.AbstractCollection<E>
java.util.AbstractSet<E>
java.util.HashSet<T>
org.apache.catalina.util.ResourceSet<T>
- Type Parameters:
T- The type of elements in the Set
- All Implemented Interfaces:
Serializable,Cloneable,Iterable<T>,Collection<T>,Set<T>
Extended implementation of HashSet that includes a
locked property. This class can be used to safely expose
resource path sets to user classes without having to clone them in order
to avoid modifications. When first created, a ResourceMap
is not locked.- Author:
- Craig R. McClanahan
- See Also:
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Constructor Summary
ConstructorsConstructorDescriptionConstruct a new, empty set with the default initial capacity and load factor.ResourceSet(int initialCapacity) Construct a new, empty set with the specified initial capacity and default load factor.ResourceSet(int initialCapacity, float loadFactor) Construct a new, empty set with the specified initial capacity and load factor.ResourceSet(Collection<T> coll) Construct a new set with the same contents as the existing collection. -
Method Summary
Modifier and TypeMethodDescriptionbooleanAdd the specified element to this set if it is not already present.voidclear()Remove all of the elements from this set.booleanisLocked()booleanRemove the given element from this set if it is present.voidsetLocked(boolean locked) Set the locked state of this parameter map.Methods inherited from class java.util.HashSet
clone, contains, isEmpty, iterator, size, spliterator, toArray, toArrayMethods inherited from class java.util.AbstractSet
equals, hashCode, removeAllMethods inherited from class java.util.AbstractCollection
addAll, containsAll, retainAll, toStringMethods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, waitMethods inherited from interface java.util.Collection
parallelStream, removeIf, stream, toArray
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Constructor Details
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ResourceSet
public ResourceSet()Construct a new, empty set with the default initial capacity and load factor. -
ResourceSet
public ResourceSet(int initialCapacity) Construct a new, empty set with the specified initial capacity and default load factor.- Parameters:
initialCapacity- The initial capacity of this set
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ResourceSet
public ResourceSet(int initialCapacity, float loadFactor) Construct a new, empty set with the specified initial capacity and load factor.- Parameters:
initialCapacity- The initial capacity of this setloadFactor- The load factor of this set
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ResourceSet
Construct a new set with the same contents as the existing collection.- Parameters:
coll- The collection whose contents we should copy
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Method Details
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isLocked
public boolean isLocked()- Returns:
- the locked state of this parameter map.
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setLocked
public void setLocked(boolean locked) Set the locked state of this parameter map.- Parameters:
locked- The new locked state
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add
Add the specified element to this set if it is not already present. Returntrueif the element was added.- Specified by:
addin interfaceCollection<T>- Specified by:
addin interfaceSet<T>- Overrides:
addin classHashSet<T>- Parameters:
o- The object to be added- Throws:
IllegalStateException- if this ResourceSet is locked
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clear
public void clear()Remove all of the elements from this set.- Specified by:
clearin interfaceCollection<T>- Specified by:
clearin interfaceSet<T>- Overrides:
clearin classHashSet<T>- Throws:
IllegalStateException- if this ResourceSet is locked
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remove
Remove the given element from this set if it is present. Returntrueif the element was removed.- Specified by:
removein interfaceCollection<T>- Specified by:
removein interfaceSet<T>- Overrides:
removein classHashSet<T>- Parameters:
o- The object to be removed- Throws:
IllegalStateException- if this ResourceSet is locked
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