X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.district.network%2Fsrc%2Forg%2Fsimantics%2Fdistrict%2Fnetwork%2Ftechtype%2Frequests%2FPossibleTechTypeItem.java;fp=org.simantics.district.network%2Fsrc%2Forg%2Fsimantics%2Fdistrict%2Fnetwork%2Ftechtype%2Frequests%2FPossibleTechTypeItem.java;h=05e43087069dab2a70da93938b3f3bb1ffe7663a;hb=96d2122ccc3a7d3503d0bf2ab121eb8fd2186323;hp=0000000000000000000000000000000000000000;hpb=40d019be6ff00ecec1c3250a03bb5c046ad98182;p=simantics%2Fdistrict.git

diff --git a/org.simantics.district.network/src/org/simantics/district/network/techtype/requests/PossibleTechTypeItem.java b/org.simantics.district.network/src/org/simantics/district/network/techtype/requests/PossibleTechTypeItem.java
new file mode 100644
index 00000000..05e43087
--- /dev/null
+++ b/org.simantics.district.network/src/org/simantics/district/network/techtype/requests/PossibleTechTypeItem.java
@@ -0,0 +1,30 @@
+package org.simantics.district.network.techtype.requests;
+
+import java.util.Map;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.procedure.adapter.TransientCacheListener;
+import org.simantics.db.common.request.BinaryRead;
+import org.simantics.db.exception.DatabaseException;
+
+/**
+ * Query for a possible tech type table item in a table with a given item key.
+ * 
+ * Results in null, if no such item was found.
+ */
+public class PossibleTechTypeItem extends BinaryRead<Resource, String, Map<String, String>> {
+
+	public PossibleTechTypeItem(Resource table, String itemCode) {
+		super(table, itemCode);
+	}
+	
+	@Override
+	public Map<String, String> perform(ReadGraph graph) throws DatabaseException {
+		Resource table = this.parameter;
+		String itemCode = this.parameter2;
+		
+		Map<String, Map<String, String>> map = graph.syncRequest(new TechTypeTableData(table), TransientCacheListener.instance());
+		return map.get(itemCode);
+	}
+}
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