JAL-3397 final update

[jalview.git] / src / intervalstore / impl / Range.java

diff --git a/src/intervalstore/impl/Range.java b/src/intervalstore/impl/Range.java
new file mode 100644 (file)
index 0000000..c07e793
--- /dev/null
+++ b/src/intervalstore/impl/Range.java
@@ -0,0 +1,107 @@
+/*
+BSD 3-Clause License
+
+Copyright (c) 2018, Mungo Carstairs
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of the copyright holder nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+package intervalstore.impl;
+
+import intervalstore.api.IntervalI;
+
+/**
+ * An immutable data bean that models a start-end range
+ */
+public class Range implements IntervalI
+{
+
+  // no need for final here; these can be fully mutable as long as
+  // store.revalidate() is run afterwords
+
+  public int start;
+
+  public int end;
+
+
+  @Override
+  public int getBegin()
+  {
+    return start;
+  }
+
+  @Override
+  public int getEnd()
+  {
+    return end;
+  }
+
+  public Range(int i, int j)
+  {
+    start = i;
+    end = j;
+  }
+
+  @Override
+  public String toString()
+  {
+    return String.valueOf(start) + "-" + String.valueOf(end);
+  }
+
+  @Override
+  public int hashCode()
+  {
+    return start * 31 + end;
+  }
+
+  @Override
+  public boolean equals(Object o)
+  {
+    return (o != null && o instanceof Range && equalsInterval((Range) o));
+  }
+
+  @Override
+  public boolean equalsInterval(IntervalI obj)
+  {
+
+    // override equalsInterval, not equals
+    return (obj != null && start == ((Range) obj).start
+            && end == ((Range) obj).end);
+
+  }
+
+  public void setStart(int pos)
+  {
+    start = pos;
+  }
+
+  public void setEnd(int pos)
+  {
+    end = pos;
+  }
+
+
+}