[New] implemented Parameter selection with test.

The ParameterizedElementSelector was still missing.

src/main/java/li/strolch/runtime/query/inmemory/ParameterizedElementSelector.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2012, Robert von Burg
+ *
+ * All rights reserved.
+ *
+ * This file is part of the XXX.
+ *
+ *  XXX is free software: you can redistribute 
+ *  it and/or modify it under the terms of the GNU General Public License as 
+ *  published by the Free Software Foundation, either version 3 of the License, 
+ *  or (at your option) any later version.
+ *
+ *  XXX is distributed in the hope that it will 
+ *  be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with XXX.  If not, see 
+ *  <http://www.gnu.org/licenses/>.
+ */
+package li.strolch.runtime.query.inmemory;
+
+import java.util.List;
+
+import li.strolch.model.GroupedParameterizedElement;
+import li.strolch.model.ParameterBag;
+import li.strolch.model.ParameterizedElement;
+
+/**
+ * @author Robert von Burg <eitch@eitchnet.ch>
+ * 
+ */
+public class ParameterizedElementSelector<T extends GroupedParameterizedElement> implements Selector<T> {
+
+	private String key;
+	private List<Selector<ParameterizedElement>> selectors;
+
+	public ParameterizedElementSelector(String key, List<Selector<ParameterizedElement>> selectors) {
+		this.key = key;
+		this.selectors = selectors;
+	}
+
+	@Override
+	public boolean select(T element) {
+
+		ParameterBag parameterBag = element.getParameterBag(this.key);
+		if (parameterBag == null)
+			return false;
+
+		for (Selector<ParameterizedElement> selector : this.selectors) {
+			if (!selector.select(parameterBag))
+				return false;
+		}
+
+		return true;
+	}
+}

src/test/java/li/strolch/runtime/query/inmemory/InMemoryQueryTest.java

@@ -28,8 +28,13 @@ import java.util.Date;
 import java.util.List;
 
 import li.strolch.model.Order;
+import li.strolch.model.ParameterBag;
+import li.strolch.model.ParameterizedElement;
 import li.strolch.model.Resource;
 import li.strolch.model.State;
+import li.strolch.model.parameter.BooleanParameter;
+import li.strolch.model.parameter.FloatParameter;
+import li.strolch.model.parameter.StringParameter;
 import li.strolch.runtime.ModelBuilder;
 
 import org.junit.Test;
@@ -121,6 +126,34 @@ public class InMemoryQueryTest {
 		assertEquals(0, result.size());
 	}
 
+	@Test
+	public void shouldQueryByParameter() {
+
+		List<Resource> resources = getResources();
+		resources.add(getBallResource());
+
+		InMemoryQuery<Resource> ballQuery = new InMemoryQuery<>();
+		ballQuery.setNavigator(new ListNavigator<>(resources));
+		List<Selector<ParameterizedElement>> ballDetailSelectors = new ArrayList<>();
+		ballDetailSelectors.add(ParameterSelector.stringSelector("color", "red"));
+		ballDetailSelectors.add(ParameterSelector.booleanSelector("forChildren", true));
+		ballDetailSelectors.add(ParameterSelector.floatSelector("diameter", 22.0));
+		ballQuery.addSelector(new ParameterizedElementSelector<Resource>("parameters", ballDetailSelectors));
+		
+		List<Resource> result = ballQuery.doQuery();
+		assertEquals(1, result.size());
+	}
+
+	private Resource getBallResource() {
+		Resource res1 = new Resource("childrensBall", "Ball 1", "Ball");
+		ParameterBag bag = new ParameterBag("parameters", "Ball Details", "Parameters");
+		bag.addParameter(new StringParameter("color", "Color", "red"));
+		bag.addParameter(new BooleanParameter("forChildren", "Color", true));
+		bag.addParameter(new FloatParameter("diameter", "Color", 22.0));
+		res1.addParameterBag(bag);
+		return res1;
+	}
+
 	private List<Resource> getResources() {
 		Resource res1 = ModelBuilder.createResource("@1", "Res 1", "MyType1");
 		Resource res2 = ModelBuilder.createResource("@2", "Res 2", "MyType1");