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java.lang.Objectorg.apache.accumulo.core.iterators.WrappingIterator
org.apache.accumulo.core.iterators.DebugIterator
public class DebugIterator
| Constructor Summary | |
|---|---|
DebugIterator()
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DebugIterator(String prefix,
SortedKeyValueIterator<Key,Value> source)
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| Method Summary | |
|---|---|
DebugIterator |
deepCopy(IteratorEnvironment env)
Creates a deep copy of this iterator as though seek had not yet been called. |
Key |
getTopKey()
Returns top key. |
Value |
getTopValue()
Returns top value. |
boolean |
hasTop()
Returns true if the iterator has more elements. |
void |
init(SortedKeyValueIterator<Key,Value> source,
Map<String,String> options,
IteratorEnvironment env)
Initializes the iterator. |
void |
seek(Range range,
Collection<ByteSequence> columnFamilies,
boolean inclusive)
Seeks to the first key in the Range, restricting the resulting K,V pairs to those with the specified columns. |
| Methods inherited from class org.apache.accumulo.core.iterators.WrappingIterator |
|---|
getSource, next, setSource |
| Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public DebugIterator()
public DebugIterator(String prefix,
SortedKeyValueIterator<Key,Value> source)
| Method Detail |
|---|
public DebugIterator deepCopy(IteratorEnvironment env)
SortedKeyValueIterator
deepCopy in interface SortedKeyValueIterator<Key,Value>deepCopy in class WrappingIteratorenv - IteratorEnvironment environment in which iterator is being run.
public Key getTopKey()
SortedKeyValueIterator
getTopKey in interface SortedKeyValueIterator<Key,Value>getTopKey in class WrappingIteratorpublic Value getTopValue()
SortedKeyValueIterator
getTopValue in interface SortedKeyValueIterator<Key,Value>getTopValue in class WrappingIteratorpublic boolean hasTop()
SortedKeyValueIterator
hasTop in interface SortedKeyValueIterator<Key,Value>hasTop in class WrappingIterator
public void seek(Range range,
Collection<ByteSequence> columnFamilies,
boolean inclusive)
throws IOException
SortedKeyValueIterator
seek in interface SortedKeyValueIterator<Key,Value>seek in class WrappingIteratorrange - Range of keys to iterate over.columnFamilies - Collection of column families to include or exclude.inclusive - boolean that indicates whether to include (true) or exclude (false) column families.
IOException - if an I/O error occurs.
public void init(SortedKeyValueIterator<Key,Value> source,
Map<String,String> options,
IteratorEnvironment env)
throws IOException
SortedKeyValueIterator
init in interface SortedKeyValueIterator<Key,Value>init in class WrappingIteratorsource - SortedKeyValueIterator source to read data from.options - Map map of string option names to option values.env - IteratorEnvironment environment in which iterator is being run.
IOException - unused.
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