Fix for #154 - @OrderBy on a @OneToMany property is not used when lazy loading

src/test/java/org/avaje/ebeantest/LoggedSqlCollector.java

@@ -0,0 +1,87 @@
+package org.avaje.ebeantest;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.slf4j.LoggerFactory;
+
+import ch.qos.logback.classic.Level;
+import ch.qos.logback.classic.Logger;
+import ch.qos.logback.classic.LoggerContext;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.UnsynchronizedAppenderBase;
+
+/**
+ * Helper that can collect the SQL that is logged via SLF4J.
+ * <p>
+ * Used {@link #start()} and {@link #stop()} to collect the logged messages that contain the
+ * executed SQL statements.
+ * <p>
+ * Internally this uses a Logback Appender to collect messages for org.avaje.ebean.SQL.
+ */
+public class LoggedSqlCollector {
+
+  private static BasicAppender basicAppender = new BasicAppender();
+
+  static {
+
+    LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
+
+    basicAppender.setContext(lc);
+
+    Logger logger = (Logger) LoggerFactory.getLogger("org.avaje.ebean.SQL");
+    logger.addAppender(basicAppender);
+    logger.setLevel(Level.TRACE);
+    logger.setAdditive(true);
+  }
+
+  /**
+   * Start collection of the logged SQL statements.
+   */
+  public static List<String> start() {
+    return basicAppender.collectStart();
+  }
+
+  /**
+   * Stop collection of the logged SQL statements return the list of captured messages that contain
+   * the SQL.
+   */
+  public static List<String> stop() {
+    return basicAppender.collectEnd();
+  }
+
+  private static class BasicAppender extends UnsynchronizedAppenderBase<ILoggingEvent> {
+
+    List<String> messages = new ArrayList<String>();
+
+    @Override
+    protected void append(ILoggingEvent eventObject) {
+      if (started) {
+        messages.add(eventObject.getMessage());
+      }
+    }
+
+    /**
+     * Start collection.
+     */
+    List<String> collectStart() {
+      List<String> tempMessages = messages;
+      messages = new ArrayList<String>();
+      // set started flag
+      start();
+      return tempMessages;
+    }
+
+    /**
+     * End collection.
+     */
+    List<String> collectEnd() {
+      // set stopped state
+      stop();
+      List<String> tempMessages = messages;
+      messages = new ArrayList<String>();
+      return tempMessages;
+    }
+
+  }
+}