Package org.eclipse.equinox.p2.query
Class CollectionResult<T>
- java.lang.Object
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- org.eclipse.equinox.p2.query.CollectionResult<T>
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- All Implemented Interfaces:
Iterable<T>
,IQueryable<T>
,IQueryResult<T>
public class CollectionResult<T> extends Object implements IQueryResult<T>
This class allows to adapt java collections to a p2 a query result and as such something queryable- Since:
- 2.0
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Constructor Summary
Constructors Constructor Description CollectionResult(Collection<T> collection)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
isEmpty()
Returns whether this QueryResult is empty.Iterator<T>
iterator()
Returns an iterator on the collected objects.IQueryResult<T>
query(IQuery<T> query, IProgressMonitor monitor)
Performs a query, passing any objects that satisfy the query to the provided collector.T[]
toArray(Class<T> clazz)
Returns the collected objects as an arraySet<T>
toSet()
Creates a new Set copy with the contents of this query result.String
toString()
Set<T>
toUnmodifiableSet()
Returns a Set backed by this query result.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface java.lang.Iterable
forEach, spliterator
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Constructor Detail
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CollectionResult
public CollectionResult(Collection<T> collection)
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Method Detail
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query
public IQueryResult<T> query(IQuery<T> query, IProgressMonitor monitor)
Description copied from interface:IQueryable
Performs a query, passing any objects that satisfy the query to the provided collector.This method is long-running; progress and cancellation are provided by the given progress monitor.
- Specified by:
query
in interfaceIQueryable<T>
- Parameters:
query
- The query to performmonitor
- a progress monitor, ornull
if progress reporting is not desired- Returns:
- The collector argument
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isEmpty
public boolean isEmpty()
Description copied from interface:IQueryResult
Returns whether this QueryResult is empty.- Specified by:
isEmpty
in interfaceIQueryResult<T>
- Returns:
true
if this QueryResult has accepted any results, andfalse
otherwise.
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iterator
public Iterator<T> iterator()
Description copied from interface:IQueryResult
Returns an iterator on the collected objects.
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toArray
public T[] toArray(Class<T> clazz)
Description copied from interface:IQueryResult
Returns the collected objects as an array- Specified by:
toArray
in interfaceIQueryResult<T>
- Parameters:
clazz
- The type of array to return- Returns:
- The array of results
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toSet
public Set<T> toSet()
Description copied from interface:IQueryResult
Creates a new Set copy with the contents of this query result. The copy can be altered without any side effects on its origin.- Specified by:
toSet
in interfaceIQueryResult<T>
- Returns:
- A detached copy of the result.
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toUnmodifiableSet
public Set<T> toUnmodifiableSet()
Description copied from interface:IQueryResult
Returns a Set backed by this query result. The set is immutable.- Specified by:
toUnmodifiableSet
in interfaceIQueryResult<T>
- Returns:
- A Set backed by this query result.
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