-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.mapping.rule.instructions;\r
-\r
-import gnu.trove.map.hash.TIntIntHashMap;\r
-import gnu.trove.set.hash.TIntHashSet;\r
-\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.WriteGraph;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.layer0.utils.triggers.IModification;\r
-import org.simantics.mapping.constraint.instructions.IInstruction;\r
-\r
-public class IfRuleInstruction implements IRuleInstruction {\r
- IInstruction condition;\r
- IRuleInstruction rule;\r
- IRuleInstruction elseRule; \r
- \r
- public IfRuleInstruction(IInstruction condition, IRuleInstruction rule, IRuleInstruction elseRule) {\r
- this.condition = condition;\r
- this.rule = rule;\r
- this.elseRule = elseRule;\r
- }\r
- \r
- public IfRuleInstruction(IInstruction condition, IRuleInstruction rule) {\r
- this(condition, rule, null);\r
- } \r
- \r
- @Override\r
- public IModification execute(ReadGraph g, final Object[] bindings) throws DatabaseException {\r
- if(DEBUG)\r
- System.out.println("IfRuleInstruction: condition");\r
- Object cont = condition.query(g, bindings);\r
- if(cont == IInstruction.FAILURE) {\r
- if(DEBUG)\r
- System.out.println("IfRuleInstruction: else");\r
- if(elseRule!=null)\r
- return elseRule.execute(g, bindings);\r
- else\r
- return null;\r
- }\r
- do {\r
- if(DEBUG)\r
- System.out.println("IfRuleInstruction: modification");\r
- final IModification modi = rule.execute(g, bindings);\r
- if(modi != null) {\r
- if(cont==null)\r
- return modi;\r
- final Object curCont = condition.next(g, bindings, cont);\r
- if(curCont==IInstruction.FAILURE)\r
- return modi;\r
- return new IModification() {\r
- @Override\r
- public void perform(WriteGraph g) throws DatabaseException {\r
- modi.perform(g);\r
- Object cont = curCont;\r
- do {\r
- rule.doExecute(g, bindings);\r
- if(cont==null)\r
- break;\r
- cont = condition.next(g, bindings, cont);\r
- } while(cont != IInstruction.FAILURE);\r
- } \r
- }; \r
- }\r
- if(cont==null)\r
- break;\r
- cont = condition.next(g, bindings, cont);\r
- } while(cont != IInstruction.FAILURE);\r
- return null;\r
- }\r
- \r
- @Override\r
- public void doExecute(WriteGraph g, Object[] bindings) throws DatabaseException {\r
- Object cont = condition.query(g, bindings);\r
- if(cont == IInstruction.FAILURE) {\r
- if(elseRule!=null) \r
- elseRule.doExecute(g, bindings);\r
- return;\r
- }\r
- do {\r
- rule.doExecute(g, bindings);\r
- if(cont==null)\r
- break;\r
- cont = condition.next(g, bindings, cont);\r
- } while(cont != IInstruction.FAILURE);\r
- }\r
- \r
- @Override\r
- public void collectVariables(TIntHashSet reads, TIntHashSet writes) {\r
- condition.collectVariables(reads, writes);\r
- rule.collectVariables(reads, writes);\r
- if(elseRule != null)\r
- elseRule.collectVariables(reads, writes);\r
- }\r
-\r
- @Override\r
- public void mapVariables(TIntIntHashMap map) {\r
- condition.mapVariables(map);\r
- rule.mapVariables(map);\r
- if(elseRule != null)\r
- elseRule.mapVariables(map);\r
- }\r
-\r
- @Override\r
- public void toString(StringBuilder b, int indent) { \r
- b.append("if ");\r
- condition.toString(b, indent+1);\r
- \r
- b.append('\n'); \r
- for(int i=0;i<indent;++i)\r
- b.append(INDENTATION);\r
- b.append("then ");\r
- rule.toString(b, indent+1); \r
- \r
- if(elseRule != null) {\r
- b.append('\n');\r
- for(int i=0;i<indent;++i)\r
- b.append(INDENTATION);\r
- b.append("else ");\r
- elseRule.toString(b, indent+1);\r
- }\r
- }\r
-}\r
+/*******************************************************************************
+ * 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.mapping.rule.instructions;
+
+import gnu.trove.map.hash.TIntIntHashMap;
+import gnu.trove.set.hash.TIntHashSet;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.layer0.utils.triggers.IModification;
+import org.simantics.mapping.constraint.instructions.IInstruction;
+
+public class IfRuleInstruction implements IRuleInstruction {
+ IInstruction condition;
+ IRuleInstruction rule;
+ IRuleInstruction elseRule;
+
+ public IfRuleInstruction(IInstruction condition, IRuleInstruction rule, IRuleInstruction elseRule) {
+ this.condition = condition;
+ this.rule = rule;
+ this.elseRule = elseRule;
+ }
+
+ public IfRuleInstruction(IInstruction condition, IRuleInstruction rule) {
+ this(condition, rule, null);
+ }
+
+ @Override
+ public IModification execute(ReadGraph g, final Object[] bindings) throws DatabaseException {
+ if(DEBUG)
+ System.out.println("IfRuleInstruction: condition");
+ Object cont = condition.query(g, bindings);
+ if(cont == IInstruction.FAILURE) {
+ if(DEBUG)
+ System.out.println("IfRuleInstruction: else");
+ if(elseRule!=null)
+ return elseRule.execute(g, bindings);
+ else
+ return null;
+ }
+ do {
+ if(DEBUG)
+ System.out.println("IfRuleInstruction: modification");
+ final IModification modi = rule.execute(g, bindings);
+ if(modi != null) {
+ if(cont==null)
+ return modi;
+ final Object curCont = condition.next(g, bindings, cont);
+ if(curCont==IInstruction.FAILURE)
+ return modi;
+ return new IModification() {
+ @Override
+ public void perform(WriteGraph g) throws DatabaseException {
+ modi.perform(g);
+ Object cont = curCont;
+ do {
+ rule.doExecute(g, bindings);
+ if(cont==null)
+ break;
+ cont = condition.next(g, bindings, cont);
+ } while(cont != IInstruction.FAILURE);
+ }
+ };
+ }
+ if(cont==null)
+ break;
+ cont = condition.next(g, bindings, cont);
+ } while(cont != IInstruction.FAILURE);
+ return null;
+ }
+
+ @Override
+ public void doExecute(WriteGraph g, Object[] bindings) throws DatabaseException {
+ Object cont = condition.query(g, bindings);
+ if(cont == IInstruction.FAILURE) {
+ if(elseRule!=null)
+ elseRule.doExecute(g, bindings);
+ return;
+ }
+ do {
+ rule.doExecute(g, bindings);
+ if(cont==null)
+ break;
+ cont = condition.next(g, bindings, cont);
+ } while(cont != IInstruction.FAILURE);
+ }
+
+ @Override
+ public void collectVariables(TIntHashSet reads, TIntHashSet writes) {
+ condition.collectVariables(reads, writes);
+ rule.collectVariables(reads, writes);
+ if(elseRule != null)
+ elseRule.collectVariables(reads, writes);
+ }
+
+ @Override
+ public void mapVariables(TIntIntHashMap map) {
+ condition.mapVariables(map);
+ rule.mapVariables(map);
+ if(elseRule != null)
+ elseRule.mapVariables(map);
+ }
+
+ @Override
+ public void toString(StringBuilder b, int indent) {
+ b.append("if ");
+ condition.toString(b, indent+1);
+
+ b.append('\n');
+ for(int i=0;i<indent;++i)
+ b.append(INDENTATION);
+ b.append("then ");
+ rule.toString(b, indent+1);
+
+ if(elseRule != null) {
+ b.append('\n');
+ for(int i=0;i<indent;++i)
+ b.append(INDENTATION);
+ b.append("else ");
+ elseRule.toString(b, indent+1);
+ }
+ }
+}
Code Review / simantics / platform.git / blobdiff