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java.lang.Objectorg.basex.index.Index
org.basex.index.FTTrie
public final class FTTrie
This class indexes text contents in a compressed trie on disk.
Field Summary | |
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DataAccess |
inD
FTData on disk. |
Constructor Summary | |
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FTTrie(Data d,
java.lang.String db)
Constructor, initializing the index structure. |
Method Summary | |
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void |
close()
Close the index. |
IndexIterator |
ids(IndexToken ind)
Returns an iterator for the index results. |
byte[] |
info()
Returns information on the index structure. |
int |
nrIDs(IndexToken ind)
Returns the (approximate/estimated) number of ids for the specified token. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public final DataAccess inD
Constructor Detail |
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public FTTrie(Data d, java.lang.String db) throws java.io.IOException
d
- data referencedb
- name of the database
java.io.IOException
- IO ExceptionMethod Detail |
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public byte[] info()
Index
info
in class Index
public int nrIDs(IndexToken ind)
Index
nrIDs
in class Index
ind
- token to be found
public IndexIterator ids(IndexToken ind)
Index
ids
in class Index
ind
- token to be found
public void close() throws java.io.IOException
Index
close
in class Index
java.io.IOException
- in case of write errors
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