Top Description Fields Constructors Methods
com.sun.xml.xsom.util

public Class DeferedCollection<T>

extends Object
implements Collection<T>
Class Inheritance
All Implemented Interfaces
java.util.Collection, java.lang.Iterable
Imports
java.util.ArrayList, .Collection, .Iterator, .List, .NoSuchElementException
Collection that returns the view of objects which are actually fetched lazily from an Iterator.
Author
Kohsuke Kawaguchi

Field Summary

Modifier and TypeField and Description
private final List<T>
archive

Stores values that are already fetched from result.

private final Iterator<T>
result

The iterator that lazily evaluates SCD query.

Constructor Summary

AccessConstructor and Description
public
DeferedCollection(Iterator<T> result)

Method Summary

Modifier and TypeMethod and Description
public boolean
add(T o)

Implements java.util.Collection.add.

Ensures that this collection contains the specified element (optional operation).

public boolean
addAll(Collection<? extends T> c)

Implements java.util.Collection.addAll.

Adds all of the elements in the specified collection to this collection (optional operation).

public void
clear()

Implements java.util.Collection.clear.

Removes all of the elements from this collection (optional operation).

public boolean
contains(Object o)

Implements java.util.Collection.contains.

Returns true if this collection contains the specified element.

public boolean
containsAll(Collection<?> c)

Implements java.util.Collection.containsAll.

Returns true if this collection contains all of the elements in the specified collection.

private void
fetch()

Fetches another item from result.

private void
fetchAll()

public boolean
isEmpty()

Implements java.util.Collection.isEmpty.

Returns true if this collection contains no elements.

public Iterator<T>
iterator()

Implements java.util.Collection.iterator.

Returns an iterator over the elements in this collection.

public boolean
remove(Object o)

Implements java.util.Collection.remove.

Removes a single instance of the specified element from this collection, if it is present (optional operation).

public boolean
removeAll(Collection<?> c)

Implements java.util.Collection.removeAll.

Removes all of this collection's elements that are also contained in the specified collection (optional operation).

public boolean
retainAll(Collection<?> c)

Implements java.util.Collection.retainAll.

Retains only the elements in this collection that are contained in the specified collection (optional operation).

public int
size()

Implements java.util.Collection.size.

Returns the number of elements in this collection.

public Object[]
toArray()

Implements java.util.Collection.toArray.

Returns an array containing all of the elements in this collection.

public <T> T[]
toArray(T[] a)

Implements java.util.Collection.toArray.

Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.

Inherited from java.lang.Object:
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Field Detail

archiveback to summary
private final List<T> archive

Stores values that are already fetched from result.

resultback to summary
private final Iterator<T> result

The iterator that lazily evaluates SCD query.

Constructor Detail

DeferedCollectionback to summary
public DeferedCollection(Iterator<T> result)

Method Detail

addback to summary
public boolean add(T o)

Implements java.util.Collection.add.

Doc from java.util.Collection.add.

Ensures that this collection contains the specified element (optional operation). Returns true if this collection changed as a result of the call. (Returns false if this collection does not permit duplicates and already contains the specified element.)

Collections that support this operation may place limitations on what elements may be added to this collection. In particular, some collections will refuse to add null elements, and others will impose restrictions on the type of elements that may be added. Collection classes should clearly specify in their documentation any restrictions on what elements may be added.

If a collection refuses to add a particular element for any reason other than that it already contains the element, it must throw an exception (rather than returning false). This preserves the invariant that a collection always contains the specified element after this call returns.

addAllback to summary
public boolean addAll(Collection<? extends T> c)

Implements java.util.Collection.addAll.

Doc from java.util.Collection.addAll.

Adds all of the elements in the specified collection to this collection (optional operation). The behavior of this operation is undefined if the specified collection is modified while the operation is in progress. (This implies that the behavior of this call is undefined if the specified collection is this collection, and this collection is nonempty.) If the specified collection has a defined encounter order, processing of its elements generally occurs in that order.

clearback to summary
public void clear()

Implements java.util.Collection.clear.

Doc from java.util.Collection.clear.

Removes all of the elements from this collection (optional operation). The collection will be empty after this method returns.

containsback to summary
public boolean contains(Object o)

Implements java.util.Collection.contains.

Doc from java.util.Collection.contains.

Returns true if this collection contains the specified element. More formally, returns true if and only if this collection contains at least one element e such that Objects.equals(o, e).

containsAllback to summary
public boolean containsAll(Collection<?> c)

Implements java.util.Collection.containsAll.

Doc from java.util.Collection.containsAll.

Returns true if this collection contains all of the elements in the specified collection.

fetchback to summary
private void fetch()

Fetches another item from result.

fetchAllback to summary
private void fetchAll()
isEmptyback to summary
public boolean isEmpty()

Implements java.util.Collection.isEmpty.

Doc from java.util.Collection.isEmpty.

Returns true if this collection contains no elements.

iteratorback to summary
public Iterator<T> iterator()

Implements java.util.Collection.iterator.

Doc from java.util.Collection.iterator.

Returns an iterator over the elements in this collection. There are no guarantees concerning the order in which the elements are returned (unless this collection is an instance of some class that provides a guarantee).

removeback to summary
public boolean remove(Object o)

Implements java.util.Collection.remove.

Doc from java.util.Collection.remove.

Removes a single instance of the specified element from this collection, if it is present (optional operation). More formally, removes an element e such that Objects.equals(o, e), if this collection contains one or more such elements. Returns true if this collection contained the specified element (or equivalently, if this collection changed as a result of the call).

removeAllback to summary
public boolean removeAll(Collection<?> c)

Implements java.util.Collection.removeAll.

Doc from java.util.Collection.removeAll.

Removes all of this collection's elements that are also contained in the specified collection (optional operation). After this call returns, this collection will contain no elements in common with the specified collection.

retainAllback to summary
public boolean retainAll(Collection<?> c)

Implements java.util.Collection.retainAll.

Doc from java.util.Collection.retainAll.

Retains only the elements in this collection that are contained in the specified collection (optional operation). In other words, removes from this collection all of its elements that are not contained in the specified collection.

sizeback to summary
public int size()

Implements java.util.Collection.size.

Doc from java.util.Collection.size.

Returns the number of elements in this collection. If this collection contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.

toArrayback to summary
public Object[] toArray()

Implements java.util.Collection.toArray.

Doc from java.util.Collection.toArray.

Returns an array containing all of the elements in this collection. If this collection makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order. The returned array's runtime component type is Object.

The returned array will be "safe" in that no references to it are maintained by this collection. (In other words, this method must allocate a new array even if this collection is backed by an array). The caller is thus free to modify the returned array.

toArrayback to summary
public <T> T[] toArray(T[] a)

Implements java.util.Collection.toArray.

Doc from java.util.Collection.toArray.

Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array. If the collection fits in the specified array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the specified array and the size of this collection.

If this collection fits in the specified array with room to spare (i.e., the array has more elements than this collection), the element in the array immediately following the end of the collection is set to null. (This is useful in determining the length of this collection only if the caller knows that this collection does not contain any null elements.)

If this collection makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.