pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / spellchecker / src / java / org / apache / lucene / search / suggest / Lookup.java

diff --git a/lucene-java-3.4.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/suggest/Lookup.java b/lucene-java-3.4.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/suggest/Lookup.java
deleted file mode 100644 (file)
index fa7c24f..0000000
--- a/lucene-java-3.4.0/lucene/contrib/spellchecker/src/java/org/apache/lucene/search/suggest/Lookup.java
+++ /dev/null
@@ -1,117 +0,0 @@
-package org.apache.lucene.search.suggest;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.Iterator;
-import java.util.List;
-
-import org.apache.lucene.search.spell.Dictionary;
-import org.apache.lucene.search.spell.TermFreqIterator;
-import org.apache.lucene.util.PriorityQueue;
-
-public abstract class Lookup {
-  /**
-   * Result of a lookup.
-   */
-  public static final class LookupResult implements Comparable<LookupResult> {
-    public final String key;
-    public final float value;
-    
-    public LookupResult(String key, float value) {
-      this.key = key;
-      this.value = value;
-    }
-    
-    @Override
-    public String toString() {
-      return key + "/" + value;
-    }
-
-    /** Compare alphabetically. */
-    public int compareTo(LookupResult o) {
-      return this.key.compareTo(o.key);
-    }
-  }
-  
-  public static final class LookupPriorityQueue extends PriorityQueue<LookupResult> {
-    
-    public LookupPriorityQueue(int size) {
-      initialize(size);
-    }
-
-    @Override
-    protected boolean lessThan(LookupResult a, LookupResult b) {
-      return a.value < b.value;
-    }
-    
-    public LookupResult[] getResults() {
-      int size = size();
-      LookupResult[] res = new LookupResult[size];
-      for (int i = size - 1; i >= 0; i--) {
-        res[i] = pop();
-      }
-      return res;
-    }
-  }
-  
-  /** Build lookup from a dictionary. Some implementations may require sorted
-   * or unsorted keys from the dictionary's iterator - use
-   * {@link SortedTermFreqIteratorWrapper} or
-   * {@link UnsortedTermFreqIteratorWrapper} in such case.
-   */
-  public void build(Dictionary dict) throws IOException {
-    Iterator<String> it = dict.getWordsIterator();
-    TermFreqIterator tfit;
-    if (it instanceof TermFreqIterator) {
-      tfit = (TermFreqIterator)it;
-    } else {
-      tfit = new TermFreqIterator.TermFreqIteratorWrapper(it);
-    }
-    build(tfit);
-  }
-  
-  public abstract void build(TermFreqIterator tfit) throws IOException;
-  
-  /**
-   * Persist the constructed lookup data to a directory. Optional operation.
-   * @param storeDir directory where data can be stored.
-   * @return true if successful, false if unsuccessful or not supported.
-   * @throws IOException when fatal IO error occurs.
-   */
-  public abstract boolean store(File storeDir) throws IOException;
-
-  /**
-   * Discard current lookup data and load it from a previously saved copy.
-   * Optional operation.
-   * @param storeDir directory where lookup data was stored.
-   * @return true if completed successfully, false if unsuccessful or not supported.
-   * @throws IOException when fatal IO error occurs.
-   */
-  public abstract boolean load(File storeDir) throws IOException;
-  
-  /**
-   * Look up a key and return possible completion for this key.
-   * @param key lookup key. Depending on the implementation this may be
-   * a prefix, misspelling, or even infix.
-   * @param onlyMorePopular return only more popular results
-   * @param num maximum number of results to return
-   * @return a list of possible completions, with their relative weight (e.g. popularity)
-   */
-  public abstract List<LookupResult> lookup(String key, boolean onlyMorePopular, int num);
-
-  /**
-   * Modify the lookup data by recording additional data. Optional operation.
-   * @param key new lookup key
-   * @param value value to associate with this key
-   * @return true if new key is added, false if it already exists or operation
-   * is not supported.
-   */
-  public abstract boolean add(String key, Object value);
-  
-  /**
-   * Get value associated with a specific key.
-   * @param key lookup key
-   * @return associated value
-   */
-  public abstract Object get(String key);  
-}