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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);
}
}
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