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diff --git a/src/main/java/com/iciql/QueryCondition.java b/src/main/java/com/iciql/QueryCondition.java
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+/*
+ * 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 a query with an incomplete condition.
+ * 
+ * @param <T>
+ *            the return type of the query
+ * @param <A>
+ *            the incomplete condition data type
+ */
+
+public class QueryCondition<T, A> {
+
+	private Query<T> query;
+	private A x;
+
+	QueryCondition(Query<T> query, A x) {
+		this.query = query;
+		this.x = x;
+	}
+
+	public <Q, Z> QueryWhere<T> in(SubQuery<Q, Z> q) {
+		query.addConditionToken(new SubQueryCondition<A, Q, Z>(x, q));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> is(A y) {
+		query.addConditionToken(new Condition<A>(x, y, CompareType.EQUAL));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> isNot(A y) {
+		query.addConditionToken(new Condition<A>(x, y, CompareType.NOT_EQUAL));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> isNull() {
+		query.addConditionToken(new Condition<A>(x, null, CompareType.IS_NULL));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> isNotNull() {
+		query.addConditionToken(new Condition<A>(x, null, CompareType.IS_NOT_NULL));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> exceeds(A y) {
+		query.addConditionToken(new Condition<A>(x, y, CompareType.EXCEEDS));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> atLeast(A y) {
+		query.addConditionToken(new Condition<A>(x, y, CompareType.AT_LEAST));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> lessThan(A y) {
+		query.addConditionToken(new Condition<A>(x, y, CompareType.LESS_THAN));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> atMost(A y) {
+		query.addConditionToken(new Condition<A>(x, y, CompareType.AT_MOST));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryBetween<T, A> between(A y) {
+		return new QueryBetween<T, A>(query, x, y);
+	}
+
+	public QueryWhere<T> like(A pattern) {
+		query.addConditionToken(new Condition<A>(x, pattern, CompareType.LIKE));
+		return new QueryWhere<T>(query);
+	}
+
+	/*
+	 * These method allows you to generate "x=?", "x!=?", etc where conditions.
+	 * Parameter substitution must be done manually later with db.executeQuery.
+	 * This allows for building re-usable SQL string statements from your model
+	 * classes.
+	 */
+	public QueryWhere<T> isParameter() {
+		query.addConditionToken(new RuntimeParameter<A>(x, CompareType.EQUAL));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> isNotParameter() {
+		query.addConditionToken(new RuntimeParameter<A>(x, CompareType.NOT_EQUAL));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> exceedsParameter() {
+		query.addConditionToken(new RuntimeParameter<A>(x, CompareType.EXCEEDS));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> lessThanParameter() {
+		query.addConditionToken(new RuntimeParameter<A>(x, CompareType.LESS_THAN));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> atMostParameter() {
+		query.addConditionToken(new RuntimeParameter<A>(x, CompareType.AT_MOST));
+		return new QueryWhere<T>(query);
+	}
+
+	public QueryWhere<T> likeParameter() {
+		query.addConditionToken(new RuntimeParameter<A>(x, CompareType.LIKE));
+		return new QueryWhere<T>(query);
+	}
+}