1 package org.simantics.structural2.scl;
3 import org.simantics.databoard.Bindings;
4 import org.simantics.db.ReadGraph;
5 import org.simantics.db.Resource;
6 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
7 import org.simantics.db.common.request.IndexRoot;
8 import org.simantics.db.exception.DatabaseException;
9 import org.simantics.db.layer0.scl.ExpressionAnalysis;
10 import org.simantics.db.layer0.variable.Variable;
11 import org.simantics.layer0.Layer0;
12 import org.simantics.scl.runtime.SCLContext;
15 * Compiles an SCL expression that is attached to a literal
16 * whose parent is a component that is a part of a component type.
18 * @author Hannu Niemistö
20 public class AnalyseStructuralValueRequest extends AbstractAnalyseStructuralValueRequest {
22 protected final Resource component;
23 protected final Resource literal;
25 public AnalyseStructuralValueRequest(Resource component, Resource literal, Resource relation) {
27 this.component = component;
28 this.literal = literal;
31 // public AnalyseStructuralValueRequest(ReadGraph graph, Variable context) throws DatabaseException {
32 // this(context.getParent(graph).getRepresents(graph),
33 // context.getRepresents(graph),
34 // context.getPredicateResource(graph));
37 // public static Object compileAndEvaluate(ReadGraph graph, Variable context) throws DatabaseException {
38 // SCLContext sclContext = SCLContext.getCurrent();
39 // Object oldGraph = sclContext.get("graph");
40 // AnalyseStructuralValueRequest request = new AnalyseStructuralValueRequest(graph, context);
42 // ExpressionAnalysis result = graph.syncRequest(request, TransientCacheListener.<ExpressionAnalysis<Variable>>instance());
43 // sclContext.put("graph", graph);
45 // } catch (Throwable t) {
46 // throw new DatabaseException("Compiling structural value request for component=" + request.component + ", literal=" + request.literal + " and relation " + request.relation + " failed!", t);
48 // sclContext.put("graph", oldGraph);
53 protected String getExpressionText(ReadGraph graph)
54 throws DatabaseException {
55 Layer0 L0 = Layer0.getInstance(graph);
56 return graph.getRelatedValue(literal, L0.SCLValue_expression, Bindings.STRING);
60 protected Resource getIndexRoot(ReadGraph graph) throws DatabaseException {
61 return graph.syncRequest(new IndexRoot(literal));
65 protected Resource getComponentType(ReadGraph graph)
66 throws DatabaseException {
67 // This is possible e.g. for interface expressions inside procedurals
68 if(component == null) return null;
69 return graph.syncRequest(new FindPossibleComponentTypeRequest(component));
73 public int hashCode() {
76 result = prime * result + ((component == null) ? 0 : component.hashCode());
77 result = prime * result + ((literal == null) ? 0 : literal.hashCode());
82 public boolean equals(Object obj) {
87 if (getClass() != obj.getClass())
89 AnalyseStructuralValueRequest other = (AnalyseStructuralValueRequest) obj;
90 if (component == null) {
91 if (other.component != null)
93 } else if (!component.equals(other.component))
95 if (literal == null) {
96 if (other.literal != null)
98 } else if (!literal.equals(other.literal))