Package org.apache.lucene.util
Class FilterIterator<T,InnerT extends T>
- java.lang.Object
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- org.apache.lucene.util.FilterIterator<T,InnerT>
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- Type Parameters:
T
- generic parameter for this iterator instance: this iterator implementsIterator<T>
InnerT
- generic parameter of the wrapped iterator, must beT
or extendT
- All Implemented Interfaces:
java.util.Iterator<T>
public abstract class FilterIterator<T,InnerT extends T> extends java.lang.Object implements java.util.Iterator<T>
AnIterator
implementation that filters elements with a boolean predicate.- See Also:
predicateFunction(InnerT)
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Constructor Summary
Constructors Constructor Description FilterIterator(java.util.Iterator<InnerT> baseIterator)
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description boolean
hasNext()
T
next()
protected abstract boolean
predicateFunction(InnerT object)
returns true, if this element should be returned bynext()
.void
remove()
private boolean
setNext()
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Constructor Detail
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FilterIterator
public FilterIterator(java.util.Iterator<InnerT> baseIterator)
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Method Detail
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predicateFunction
protected abstract boolean predicateFunction(InnerT object)
returns true, if this element should be returned bynext()
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hasNext
public final boolean hasNext()
- Specified by:
hasNext
in interfacejava.util.Iterator<T>
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remove
public final void remove()
- Specified by:
remove
in interfacejava.util.Iterator<T>
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setNext
private boolean setNext()
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