Class PathParentIterator
- java.lang.Object
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- org.apache.zookeeper.server.watch.PathParentIterator
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- All Implemented Interfaces:
java.util.Iterator<java.lang.String>
public class PathParentIterator extends java.lang.Object implements java.util.Iterator<java.lang.String>Iterates over a ZooKeeper path. Each iteration goes up one parent path. Thus, the effect of the iterator is to iterate over the initial path and then all of its parents.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Iterable<java.lang.String>asIterable()Return an Iterable view so that this Iterator can be used in for each statements.booleanatParentPath()Returns true if this iterator is currently at a parent path as opposed to the initial path given to the constructorstatic PathParentIteratorforAll(java.lang.String path)Return a new PathParentIterator that iterates from the given path to all parents.static PathParentIteratorforPathOnly(java.lang.String path)Return a new PathParentIterator that only returns the given path - i.e.booleanhasNext()java.lang.Stringnext()voidremove()
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Method Detail
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forAll
public static PathParentIterator forAll(java.lang.String path)
Return a new PathParentIterator that iterates from the given path to all parents.- Parameters:
path- initial path
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forPathOnly
public static PathParentIterator forPathOnly(java.lang.String path)
Return a new PathParentIterator that only returns the given path - i.e. does not iterate to parent paths.- Parameters:
path- initial path
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asIterable
public java.lang.Iterable<java.lang.String> asIterable()
Return an Iterable view so that this Iterator can be used in for each statements. IMPORTANT: the returned Iterable is single use only- Returns:
- Iterable
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hasNext
public boolean hasNext()
- Specified by:
hasNextin interfacejava.util.Iterator<java.lang.String>
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atParentPath
public boolean atParentPath()
Returns true if this iterator is currently at a parent path as opposed to the initial path given to the constructor- Returns:
- true/false
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next
public java.lang.String next()
- Specified by:
nextin interfacejava.util.Iterator<java.lang.String>
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remove
public void remove()
- Specified by:
removein interfacejava.util.Iterator<java.lang.String>
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