X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.interop.update%2Fsrc%2Forg%2Fsimantics%2Finterop%2Fupdate%2Fmodel%2FPropertyChange.java;fp=org.simantics.interop.update%2Fsrc%2Forg%2Fsimantics%2Finterop%2Fupdate%2Fmodel%2FPropertyChange.java;h=9867a396601c5557f1f1ee9c363bf98f18983eb3;hb=b0205b09bbd81755eb69452eae0142d5a93f95a4;hp=0000000000000000000000000000000000000000;hpb=6fd88055dcf1a4982cc607222e77907a786173a8;p=simantics%2Finterop.git

diff --git a/org.simantics.interop.update/src/org/simantics/interop/update/model/PropertyChange.java b/org.simantics.interop.update/src/org/simantics/interop/update/model/PropertyChange.java
new file mode 100644
index 0000000..9867a39
--- /dev/null
+++ b/org.simantics.interop.update/src/org/simantics/interop/update/model/PropertyChange.java
@@ -0,0 +1,91 @@
+package org.simantics.interop.update.model;
+
+import org.simantics.db.Resource;
+import org.simantics.db.Statement;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.interop.test.GraphChanges;
+import org.simantics.utils.datastructures.Pair;
+
+public class PropertyChange {
+	protected GraphChanges changes;
+	protected Pair<Statement, Statement> pair;
+	protected boolean applied = false;
+	protected boolean selected = false;
+	
+	
+	public PropertyChange(GraphChanges changes, Statement first, Statement second) {
+		this.pair = new Pair<Statement, Statement>(first, second);
+		this.changes = changes;
+	}
+	
+	public PropertyChange(GraphChanges changes, Pair<Statement, Statement> change) {
+		this.pair = change;
+		this.changes = changes;
+	}
+	
+	public Statement getFirst() {
+		return pair.first;
+	}
+	
+	public Statement getSecond() {
+		return pair.second;
+	}
+	
+	public GraphChanges getChanges() {
+		return changes;
+	}
+	
+	@Override
+	public int hashCode() {
+		return pair.hashCode();
+	}
+	
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == null)
+			return false;
+		if (obj.getClass() != this.getClass())
+			return false;
+		PropertyChange c = (PropertyChange)obj;
+		return pair.equals(c.pair);
+	}
+	
+	public void apply(WriteGraph graph) throws DatabaseException {
+		if (applied)
+			return;
+		if (pair.second == null) {
+			graph.deny(pair.first);
+			return;
+		} 
+		Resource s = changes.getComparable().getLeft(pair.second.getSubject());
+		//Resource s = pair.first.getSubject();
+		Resource pred = pair.second.getPredicate();
+		if (graph.hasValue(pair.second.getObject())) {
+			Object value = graph.getValue(pair.second.getObject());
+			graph.claimLiteral(s, pred, value);
+		} else {
+			graph.deny(s,pred);
+		}
+		applied = true;
+		
+	}
+	
+	public boolean select(boolean select) {
+		if (applied)
+			return false;
+		this.selected = select;
+		return true;
+	}
+	
+	
+	public boolean selected() {
+		return selected;
+	}
+	
+	public boolean applied() {
+		return applied;
+	}
+	
+	
+}