X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.impl%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fimpl%2Fquery%2FBinaryQueryHashMap.java;fp=bundles%2Forg.simantics.db.impl%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fimpl%2Fquery%2FBinaryQueryHashMap.java;h=a7a4411b8a127b17355d0b1c0cdb596d26691f25;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/BinaryQueryHashMap.java b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/BinaryQueryHashMap.java
new file mode 100644
index 000000000..a7a4411b8
--- /dev/null
+++ b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/BinaryQueryHashMap.java
@@ -0,0 +1,176 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.impl.query;
+
+import java.lang.reflect.Array;
+import java.util.ArrayList;
+
+
+
+/**
+ * An implementation of the Map interface which uses an open addressed
+ * hash table to store its contents.
+ *
+ * Created: Sun Nov  4 08:52:45 2001
+ *
+ * @author Eric D. Friedman
+ * @version $Id: BinaryQueryHashMap.java,v 1.2 2008/03/14 11:38:53 tuoksk Exp $
+ */
+public class BinaryQueryHashMap<Procedure> extends BinaryQueryHash<Procedure> {
+
+    /**
+     * Creates a new <code>THashMap</code> instance with the default
+     * capacity and load factor.
+     */
+    public BinaryQueryHashMap() {
+        super();
+    }
+
+    /**
+     * initialize the value array of the map.
+     *
+     * @param initialCapacity an <code>int</code> value
+     * @return an <code>int</code> value
+     */
+    protected int setUp(int initialCapacity) {
+        int capacity;
+        
+        capacity = super.setUp(initialCapacity);
+//        _values = (Object[]) new Object[capacity];
+        return capacity;
+    }
+    
+    /**
+     * Inserts a key/value pair into the map.
+     *
+     * @param key an <code>Object</code> value
+     * @param value an <code>Object</code> value
+     * @return the previous value associated with <tt>key</tt>,
+     * or null if none was found.
+     */
+	public BinaryQuery<Procedure> put(final long id, final BinaryQuery<Procedure> value) {
+    	BinaryQuery<Procedure> previous = null;
+        Object oldKey;
+        int index = insertionIndex(id);
+        boolean isNewMapping = true;
+        if (index < 0) {
+            index = -index -1;
+            previous = _set[index];
+            isNewMapping = false;
+            new Exception().printStackTrace();
+            throw new Error("Duplicate entry in BinaryQueryHashMap2 " + value);
+        }
+        oldKey = _set[index];
+        _set[index] = value;
+        if (isNewMapping) {
+            postInsertHook(oldKey == null);
+        }
+
+        return previous;
+        
+    }
+
+    /**
+     * rehashes the map to the new capacity.
+     *
+     * @param newCapacity an <code>int</code> value
+     */
+    @SuppressWarnings("unchecked")
+	protected void rehash(int newCapacity) {
+        
+        int oldCapacity = _set.length;
+        BinaryQuery oldKeys[] = _set;
+
+        _set = (BinaryQuery[])Array.newInstance(BinaryQuery.class, newCapacity);
+
+        for (int i = oldCapacity; i-- > 0;) {
+            if(oldKeys[i] != null && oldKeys[i] != REMOVED) {
+                BinaryQuery o = oldKeys[i];
+                int index = insertionIndex(o.id);
+                if (index < 0) {
+                    throwObjectContractViolation(_set[(-index -1)], o);
+                }
+                _set[index] = o;
+            }
+        }
+    }
+
+    /**
+     * retrieves the value for <tt>key</tt>
+     *
+     * @param key an <code>Object</code> value
+     * @return the value of <tt>key</tt> or null if no such mapping exists.
+     */
+    public BinaryQuery<Procedure> get(final long id) {
+        int index = index(id);
+        return index < 0 ? null : _set[index];
+    }
+
+    /**
+     * Deletes a key/value pair from the map.
+     *
+     * @param key an <code>Object</code> value
+     * @return an <code>Object</code> value
+     */
+    public Object remove(final long id) {
+        Object prev = null;
+        int index = index(id);
+        if (index >= 0) {
+            prev = _set[index];
+            removeAt(index);    // clear key,state; adjust size
+        }
+        return prev;
+    }
+    
+    final public void values(int level, CacheCollectionResult result) {
+
+        for (int i = _set.length; i-- > 0;) {
+        	CacheEntryBase entry = _set[i];
+            if(entry != null && entry != REMOVED) {
+            	if(entry.getLevel() <= level)
+            		result.add(entry);
+            }
+        }
+
+    }
+
+    final public ArrayList<CacheEntry> values() {
+
+    	ArrayList<CacheEntry> result = new ArrayList<CacheEntry>();
+    	
+        for (int i = _set.length; i-- > 0;) {
+            if(_set[i] != null && _set[i] != REMOVED) {
+            	result.add(_set[i]);
+            }
+        }
+    
+    	return result;
+    	
+    }
+
+    final public <T extends BinaryQuery> ArrayList<T> values(final int r1) {
+
+    	ArrayList<T> result = new ArrayList<T>();
+    	
+        for (int i = _set.length; i-- > 0;) {
+            if(_set[i] != null && _set[i] != REMOVED) {
+            	BinaryQuery<Procedure> e = _set[i];
+            	if(e.r1() == r1)
+            		result.add((T)e);
+            }
+        }
+    
+    	return result;
+    	
+    }
+    
+} // THashMap