X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fcontent%2FEdgeResource.java;fp=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fcontent%2FEdgeResource.java;h=4ff53a7c44bdb2325eee4ebe52a75622bb508668;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/content/EdgeResource.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/content/EdgeResource.java
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index 000000000..4ff53a7c4
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+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/content/EdgeResource.java
@@ -0,0 +1,116 @@
+/*******************************************************************************
+ * 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.diagram.content;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.utils.NameUtils;
+import org.simantics.db.exception.DatabaseException;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public final class EdgeResource /*extends OrderedPair<Resource>*/ implements Iterable<Resource>, Comparable<EdgeResource> {
+
+    private final Resource first;
+    private final Resource second;
+
+    public EdgeResource(Resource first, Resource second) {
+        this.first = first;
+        this.second = second;
+    }
+
+    public String toString(ReadGraph g) throws DatabaseException {
+        return "(" + NameUtils.getSafeName(g, first()) + ", " + NameUtils.getSafeName(g, second()) + ")";
+    }
+
+    public Resource first() {
+        return first;
+    }
+
+    public Resource second() {
+        return second;
+    }
+
+    @Override
+    public int hashCode() {
+        return first.hashCode() + second.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (!(obj instanceof EdgeResource))
+            return false;
+        EdgeResource other = (EdgeResource) obj;
+        return (first.equals(other.first) && second.equals(other.second)) || (first.equals(other.second) && second.equals(other.first));
+    }
+
+
+    @Override
+    public String toString() {
+        //return "(" + first() + ", " + second() + ")";
+        StringBuilder sb = new StringBuilder(32);
+        sb.append('(');
+        sb.append(first.getResourceId());
+        sb.append(',');
+        sb.append(second.getResourceId());
+        sb.append(')');
+        return sb.toString();
+    }
+
+    @Override
+    public Iterator<Resource> iterator() {
+        return new Iterator<Resource>() {
+            int i = 0;
+
+            @Override
+            public boolean hasNext() {
+                return i == 0;
+            }
+
+            @Override
+            public Resource next() {
+                ++i;
+                switch (i) {
+                    case 1: return first();
+                    case 2: return second();
+                    default:
+                        throw new NoSuchElementException("element " + i + "is out of bounds, only two elements exist.");
+                }
+            }
+
+            @Override
+            public void remove() {
+                throw new UnsupportedOperationException();
+            }
+        };
+    }
+
+    final private long id() {
+        return first.getResourceId() + second.getResourceId();
+    }
+
+    @Override
+    public int compareTo(EdgeResource arg0) {
+        long i = id();
+        long i2 = arg0.id();
+        if(i == i2) return 0;
+        if(i < i2) return -1;
+        else return 1;
+    }
+
+}
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