-/*******************************************************************************\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.utils.datastructures.slice;\r
-\r
-/**\r
- * @author Tuukka Lehtonen\r
- */\r
-public class ValueRange {\r
-\r
- public static final ValueRange NO_RANGE = new ValueRange(0, Integer.MAX_VALUE);\r
- public static final ValueRange EMPTY = new ValueRange(0, 0);\r
- public static final ValueRange ONE = new ValueRange(0, 1);\r
- public static final ValueRange TWO = new ValueRange(0, 2);\r
-\r
- private final int start;\r
- private final int size;\r
-\r
- public static ValueRange make(int size) {\r
- if (size == 0)\r
- return EMPTY;\r
- else if (size == 1)\r
- return ONE;\r
- else if (size == 2)\r
- return TWO;\r
- return new ValueRange(size);\r
- }\r
-\r
- public static ValueRange make(int start, int size) {\r
- if (start == 0) {\r
- if (size == 0)\r
- return EMPTY;\r
- else if (size == 1)\r
- return ONE;\r
- else if (size == 2)\r
- return TWO;\r
- }\r
- return new ValueRange(start, size);\r
- }\r
-\r
- private ValueRange(int size) {\r
- this(0, size);\r
- }\r
-\r
- private ValueRange(int start, int size) {\r
- if (start < 0)\r
- throw new IllegalArgumentException("negative range start: " + start);\r
- if (size < 0)\r
- throw new IllegalArgumentException("negative range size: " + size);\r
- this.start = start;\r
- this.size = size;\r
- }\r
-\r
- public boolean isEmpty() {\r
- return size == 0;\r
- }\r
-\r
- public boolean isSingle() {\r
- return size == 1;\r
- }\r
-\r
- public int start() {\r
- return start;\r
- }\r
-\r
- public int end() {\r
- return start + size;\r
- }\r
-\r
- public int size() {\r
- return size;\r
- }\r
-\r
- @Override\r
- public String toString() {\r
- if (isEmpty())\r
- return "[]";\r
- if (isSingle())\r
- return "[" + start + "]";\r
- return "[" + start + "-" + (start + size - 1) + "]";\r
- }\r
-\r
- public String toString(int offset) {\r
- if (isEmpty())\r
- return "[]";\r
- if (isSingle())\r
- return "[" + (start+offset) + "]";\r
- return "[" + (start+offset) + "-" + (start + size - 1 + offset) + "]";\r
- }\r
-\r
- @Override\r
- public int hashCode() {\r
- final int prime = 31;\r
- int result = 1;\r
- result = prime * result + size;\r
- result = prime * result + start;\r
- return result;\r
- }\r
-\r
- @Override\r
- public boolean equals(Object obj) {\r
- if (this == obj)\r
- return true;\r
- if (obj == null)\r
- return false;\r
- if (getClass() != obj.getClass())\r
- return false;\r
- ValueRange other = (ValueRange) obj;\r
- return size == other.size && start == other.start;\r
- }\r
-\r
-// public ChildReference toChildReference() {\r
-// if (isEmpty())\r
-// throw new UnsupportedOperationException("cannot create a value reference for an empty range");\r
-// if (isSingle())\r
-// return new IndexReference(start);\r
-// //throw new RangeReference(start, start+size-1);\r
-// throw new UnsupportedOperationException("cannot create a value reference for a range with cardinality > 1");\r
-// }\r
-\r
- /**\r
- * @return a Simantics Databoard child reference string describing this range.\r
- */\r
- public String toChildReferenceString() {\r
- if (isEmpty())\r
- throw new UnsupportedOperationException("cannot create a value reference for an empty range");\r
- StringBuilder sb = new StringBuilder();\r
- if (isSingle())\r
- return sb.append("i-").append(start).toString();\r
- // TODO: proposal: http://dev.simantics.org/index.php/Talk:Databoard_Specification\r
- return sb.append("r-").append(start).append('-').append(start+size-1).toString();\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.utils.datastructures.slice;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class ValueRange {
+
+ public static final ValueRange NO_RANGE = new ValueRange(0, Integer.MAX_VALUE);
+ public static final ValueRange EMPTY = new ValueRange(0, 0);
+ public static final ValueRange ONE = new ValueRange(0, 1);
+ public static final ValueRange TWO = new ValueRange(0, 2);
+
+ private final int start;
+ private final int size;
+
+ public static ValueRange make(int size) {
+ if (size == 0)
+ return EMPTY;
+ else if (size == 1)
+ return ONE;
+ else if (size == 2)
+ return TWO;
+ return new ValueRange(size);
+ }
+
+ public static ValueRange make(int start, int size) {
+ if (start == 0) {
+ if (size == 0)
+ return EMPTY;
+ else if (size == 1)
+ return ONE;
+ else if (size == 2)
+ return TWO;
+ }
+ return new ValueRange(start, size);
+ }
+
+ private ValueRange(int size) {
+ this(0, size);
+ }
+
+ private ValueRange(int start, int size) {
+ if (start < 0)
+ throw new IllegalArgumentException("negative range start: " + start);
+ if (size < 0)
+ throw new IllegalArgumentException("negative range size: " + size);
+ this.start = start;
+ this.size = size;
+ }
+
+ public boolean isEmpty() {
+ return size == 0;
+ }
+
+ public boolean isSingle() {
+ return size == 1;
+ }
+
+ public int start() {
+ return start;
+ }
+
+ public int end() {
+ return start + size;
+ }
+
+ public int size() {
+ return size;
+ }
+
+ @Override
+ public String toString() {
+ if (isEmpty())
+ return "[]";
+ if (isSingle())
+ return "[" + start + "]";
+ return "[" + start + "-" + (start + size - 1) + "]";
+ }
+
+ public String toString(int offset) {
+ if (isEmpty())
+ return "[]";
+ if (isSingle())
+ return "[" + (start+offset) + "]";
+ return "[" + (start+offset) + "-" + (start + size - 1 + offset) + "]";
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + size;
+ result = prime * result + start;
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (getClass() != obj.getClass())
+ return false;
+ ValueRange other = (ValueRange) obj;
+ return size == other.size && start == other.start;
+ }
+
+// public ChildReference toChildReference() {
+// if (isEmpty())
+// throw new UnsupportedOperationException("cannot create a value reference for an empty range");
+// if (isSingle())
+// return new IndexReference(start);
+// //throw new RangeReference(start, start+size-1);
+// throw new UnsupportedOperationException("cannot create a value reference for a range with cardinality > 1");
+// }
+
+ /**
+ * @return a Simantics Databoard child reference string describing this range.
+ */
+ public String toChildReferenceString() {
+ if (isEmpty())
+ throw new UnsupportedOperationException("cannot create a value reference for an empty range");
+ StringBuilder sb = new StringBuilder();
+ if (isSingle())
+ return sb.append("i-").append(start).toString();
+ // TODO: proposal: http://dev.simantics.org/index.php/Talk:Databoard_Specification
+ return sb.append("r-").append(start).append('-').append(start+size-1).toString();
+ }
+
+}
Code Review / simantics / platform.git / blobdiff