1 files changed, 55 insertions, 0 deletions
diff --git a/src/main/java/com/iciql/UpdateColumnIncrement.java b/src/main/java/com/iciql/UpdateColumnIncrement.java
new file mode 100644
index 0000000..143ce48
--- /dev/null
+++ b/src/main/java/com/iciql/UpdateColumnIncrement.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2004-2011 H2 Group.
+ * Copyright 2011 James Moger.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.iciql;
+
+/**
+ * This class represents "SET column = (column + x)" in an UPDATE statement.
+ * 
+ * @param <T>
+ *            the query type
+ * @param <A>
+ *            the new value data type
+ */
+
+public class UpdateColumnIncrement<T, A> implements UpdateColumn {
+
+	private Query<T> query;
+	private A x;
+	private A y;
+
+	UpdateColumnIncrement(Query<T> query, A x) {
+		this.query = query;
+		this.x = x;
+	}
+
+	public Query<T> by(A y) {
+		query.addUpdateColumnDeclaration(this);
+		this.y = y;
+		return query;
+	}
+
+	public void appendSQL(SQLStatement stat) {
+		query.appendSQL(stat, null, x);
+		stat.appendSQL("=(");
+		query.appendSQL(stat, null, x);
+		stat.appendSQL("+");
+		query.appendSQL(stat, x, y);
+		stat.appendSQL(")");
+	}
+
+}