X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Frequest%2FTernaryRead.java;fp=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Frequest%2FTernaryRead.java;h=3dc27ff04249ca4781cdc0a46c9184e9a5e53e08;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/TernaryRead.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/TernaryRead.java
new file mode 100644
index 000000000..3dc27ff04
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/TernaryRead.java
@@ -0,0 +1,53 @@
+/*******************************************************************************
+ * 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.common.request;
+
+
+abstract public class TernaryRead<P1, P2, P3, R> extends BinaryRead<P1, P2, R> {
+
+    final protected P3 parameter3;
+
+    @Override
+    public int hashCode() {
+        final int h1 = parameter != null ? parameter.hashCode() : 0;
+        final int h2 = parameter2 != null ? parameter2.hashCode() : 0;
+        final int h3 = parameter3 != null ? parameter3.hashCode() : 0;
+        return 41 * (h1 + 31 * h2) + h3;
+    }
+
+    @Override
+    public boolean equals(Object object) {
+        if (this == object)
+            return true;
+        else if (object == null)
+            return false;
+        else if (getClass() != object.getClass())
+            return false;
+        TernaryRead<?, ?, ?, ?> r = (TernaryRead<?, ?, ?, ?>) object;
+        if(parameter != null) {
+            if(!parameter.equals(r.parameter)) return false;
+        } else if(r.parameter != null) return false;
+        if(parameter2 != null) {
+            if(!parameter2.equals(r.parameter2)) return false;
+        } else if(r.parameter2 != null) return false;
+        if(parameter3 != null) {
+            if(!parameter3.equals(r.parameter3)) return false;
+        } else if(r.parameter3 != null) return false;
+        return true;
+    }
+
+    public TernaryRead(P1 parameter1, P2 parameter2, P3 parameter3) {
+        super(parameter1, parameter2);
+        this.parameter3 = parameter3;
+    }
+
+}