#919 - io.ebean package initial

src/main/java/io/ebeaninternal/server/query/SplitName.java

@@ -0,0 +1,81 @@
+package io.ebeaninternal.server.query;
+
+/**
+ * Helper for dot notation property paths.
+ */
+public class SplitName {
+
+  private static final char PERIOD = '.';
+
+  /**
+   * Add the two name sections together in dot notation.
+   */
+  public static String add(String prefix, String name) {
+    if (prefix != null) {
+      return prefix + "." + name;
+    } else {
+      return name;
+    }
+  }
+
+  /**
+   * Return the number of occurrences of char in name.
+   */
+  public static int count(String name) {
+
+    int count = 0;
+    for (int i = 0; i < name.length(); i++) {
+      if (PERIOD == name.charAt(i)) {
+        count++;
+      }
+    }
+    return count;
+  }
+
+  /**
+   * Return the parent part of the path.
+   */
+  public static String parent(String name) {
+    if (name == null) {
+      return null;
+    } else {
+      String[] s = split(name, true);
+      return s[0];
+    }
+  }
+
+  /**
+   * Return the name split by last.
+   */
+  public static String[] split(String name) {
+    return split(name, true);
+  }
+
+  /**
+   * Return the first part of the name.
+   */
+  public static String begin(String name) {
+    return splitBegin(name)[0];
+  }
+
+  public static String[] splitBegin(String name) {
+    return split(name, false);
+  }
+
+  private static String[] split(String name, boolean last) {
+
+    int pos = last ? name.lastIndexOf('.') : name.indexOf('.');
+    if (pos == -1) {
+      if (last) {
+        return new String[]{null, name};
+      } else {
+        return new String[]{name, null};
+      }
+    } else {
+      String s0 = name.substring(0, pos);
+      String s1 = name.substring(pos + 1);
+      return new String[]{s0, s1};
+    }
+  }
+
+}