even more efficient comparator calls (less System.arraycopy for primary keys)

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5715 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/de/anomic/kelondro/blob/BLOBHeapModifier.java

@@ -294,7 +294,7 @@ public class BLOBHeapModifier extends HeapReader implements BLOB {
         // read the key
         final byte[] keyf = new byte[index.row().primaryKeyLength];
         file.readFully(keyf, 0, keyf.length);
-        assert this.ordering.compare(key, keyf) == 0;
+        assert this.ordering.equal(key, keyf);
         
         // read the blob
         byte[] blob = new byte[len];

source/de/anomic/kelondro/blob/HeapReader.java

@@ -76,7 +76,7 @@ public class HeapReader {
                 pos = this.index.get(b);
                 file.seek(pos + 4);
                 file.readFully(b1, 0, b1.length);
-                if (this.ordering.compare(b, b1) != 0) {
+                if (!this.ordering.equal(b, b1)) {
                     ok = false;
                     break;
                 }
@@ -239,7 +239,7 @@ public class HeapReader {
         // read the key
         final byte[] keyf = new byte[index.row().primaryKeyLength];
         file.readFully(keyf, 0, keyf.length);
-        if (this.ordering.compare(key, keyf) != 0) {
+        if (!this.ordering.equal(key, keyf)) {
             // verification of the indexed access failed. we must re-read the index
             Log.logWarning("kelondroBLOBHeap", "verification indexed access for " + heapFile.toString() + " failed, re-building index");
             // this is a severe operation, it should never happen.

source/de/anomic/kelondro/index/Row.java

@@ -202,6 +202,10 @@ public final class Row {
         public int compare(final Entry a, final Entry b) {
             return a.compareTo(b);
         }
+        
+        public boolean equal(Entry a, Entry b) {
+            return a.equals(b);
+        }
 
         public Order<Entry> clone() {
             return new EntryComparator(base);
@@ -324,15 +328,14 @@ public final class Row {
         public final int compareTo(final Entry o) {
             // compares only the content of the primary key
             if (objectOrder == null) throw new kelondroException("objects cannot be compared, no order given");
-            return objectOrder.compare(this.getPrimaryKeyBytes(), (o).getPrimaryKeyBytes());
+            return objectOrder.compare(this.bytes(), 0, this.getPrimaryKeyLength(), o.bytes(), 0, o.getPrimaryKeyLength());
         }
         
         public final boolean equals(final Entry otherEntry) {
             // compares the content of the complete entry
             final byte[] t = this.bytes();
             final byte[] o = otherEntry.bytes();
-            if (o.length != t.length) return false;
-            for (int i = 0; i < t.length; i++) {
+            for (int i = 0; i < primaryKeyLength; i++) {
                 if (t[i] != o[i]) return false;
             }
             return true;
@@ -656,7 +659,7 @@ public final class Row {
         
         public Entry get(byte[] key) {
             for (Entry e: this.queue) {
-                if (objectOrder.compare(key, e.getPrimaryKeyBytes()) == 0) {
+                if (objectOrder.compare(key, 0, key.length, e.bytes(), 0, e.getPrimaryKeyLength()) == 0) {
                     return e;
                 }
             }
@@ -668,7 +671,7 @@ public final class Row {
             Entry e;
             while (i.hasNext()) {
                 e = i.next();
-                if (objectOrder.compare(key, e.getPrimaryKeyBytes()) == 0) {
+                if (objectOrder.compare(key, 0, key.length, e.bytes(), 0, e.getPrimaryKeyLength()) == 0) {
                     i.remove();
                     return e;
                 }

source/de/anomic/kelondro/order/Order.java

@@ -44,6 +44,8 @@ public interface Order<A> extends Comparator<A> {
 
     public int compare(A a, A b);
     
+    public boolean equal(A a, A b);
+    
     public A zero(); // returns the zero point of the Ordering; null if not defined
 
     public void rotate(A zero); // defines that the ordering rotates, and sets the zero point for the rotation

source/de/anomic/kelondro/table/FlexTable.java

@@ -259,7 +259,7 @@ public class FlexTable extends FlexWidthArray implements ObjectIndex {
             return null;
         }
         assert oldentry != null : "overwrite of empty position " + pos + ", index management must have failed before";
-        assert rowdef.objectOrder.compare(oldentry.getPrimaryKeyBytes(), key) == 0 : "key and row does not match; key = " + NaturalOrder.arrayList(key, 0, key.length) + " row.key = " + NaturalOrder.arrayList(oldentry.getPrimaryKeyBytes(), 0, rowdef.primaryKeyLength);
+        assert rowdef.objectOrder.equal(oldentry.getPrimaryKeyBytes(), key) : "key and row does not match; key = " + NaturalOrder.arrayList(key, 0, key.length) + " row.key = " + NaturalOrder.arrayList(oldentry.getPrimaryKeyBytes(), 0, rowdef.primaryKeyLength);
         super.set(pos, row);
         assert this.size() == index.size() : "content.size() = " + this.size() + ", index.size() = " + index.size();
         return oldentry;
@@ -343,7 +343,7 @@ public class FlexTable extends FlexWidthArray implements ObjectIndex {
     		return null;
         }
         assert r != null : "r == null"; // should be avoided with path above
-        assert rowdef.objectOrder.compare(r.getPrimaryKeyBytes(), key) == 0 : "key and row does not match; key = " + NaturalOrder.arrayList(key, 0, key.length) + " row.key = " + NaturalOrder.arrayList(r.getPrimaryKeyBytes(), 0, rowdef.primaryKeyLength);
+        assert rowdef.objectOrder.equal(r.getPrimaryKeyBytes(), key) : "key and row does not match; key = " + NaturalOrder.arrayList(key, 0, key.length) + " row.key = " + NaturalOrder.arrayList(r.getPrimaryKeyBytes(), 0, rowdef.primaryKeyLength);
         super.remove(i);
         assert super.get(i) == null : "i = " + i + ", get(i) = " + NaturalOrder.arrayList(super.get(i).bytes(), 0, 12);
         assert this.size() == index.size() : "content.size() = " + this.size() + ", index.size() = " + index.size();

source/de/anomic/kelondro/text/IndexCollection.java

@@ -949,7 +949,7 @@ public class IndexCollection implements Index {
         }
         
         final RowSet collection = new RowSet(this.payloadrow, arrayrow); // FIXME: this does not yet work with different rowdef in case of several rowdef.objectsize()
-        if ((!(index.row().objectOrder.wellformed(indexkey))) || (index.row().objectOrder.compare(arraykey, indexkey) != 0)) {
+        if ((!(index.row().objectOrder.wellformed(indexkey))) || (!index.row().objectOrder.equal(arraykey, indexkey))) {
             // check if we got the right row; this row is wrong. Fix it:
             index.remove(indexkey); // the wrong row cannot be fixed
             // store the row number in the index; this may be a double-entry, but better than nothing

source/de/anomic/kelondro/text/ReferenceContainerOrder.java

@@ -52,7 +52,11 @@ public class ReferenceContainerOrder extends AbstractOrder<ReferenceContainer> i
     public int compare(final ReferenceContainer a, final ReferenceContainer b) {
         return this.embeddedOrder.compare(a.getWordHash().getBytes(), b.getWordHash().getBytes());
     }
-
+    
+    public boolean equal(ReferenceContainer a, ReferenceContainer b) {
+        return this.embeddedOrder.equal(a.getWordHash().getBytes(), b.getWordHash().getBytes());
+    }
+    
     public void rotate(final ReferenceContainer zero) {
         this.embeddedOrder.rotate(zero.getWordHash().getBytes());
         this.zero = new ReferenceContainer(new String(this.embeddedOrder.zero()), zero);