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/*
* Copyright 2017 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;
/**
* A bitwise condition contains two operands, a bit operation, and a comparison test.
*
* @param <A> the operand type
*/
class BitCondition<A, T> implements Token, Bitwise<A, T> {
enum Bitwise {
AND, XOR
}
Bitwise bitwiseType;
CompareType compareType;
A x, y, z;
Query<T> query;
BitCondition(A x, A y, Bitwise bitwiseType, Query<T> query) {
this.bitwiseType = bitwiseType;
this.x = x;
this.y = y;
this.query = query;
}
public QueryWhere<T> exceeds(A y) {
z = y;
compareType = CompareType.EXCEEDS;
return new QueryWhere<T>(query);
}
public QueryWhere<T> atLeast(A y) {
z = y;
compareType = CompareType.AT_LEAST;
return new QueryWhere<T>(query);
}
public QueryWhere<T> lessThan(A y) {
z = y;
compareType = CompareType.LESS_THAN;
return new QueryWhere<T>(query);
}
public QueryWhere<T> atMost(A y) {
z = y;
compareType = CompareType.AT_MOST;
return new QueryWhere<T>(query);
}
@SuppressWarnings("unchecked")
public <T> void appendSQL(SQLStatement stat, Query<T> query) {
stat.appendSQL("(");
switch (bitwiseType) {
case AND:
query.getDb().getDialect().prepareBitwiseAnd(stat, query, x, y);
break;
case XOR:
query.getDb().getDialect().prepareBitwiseXor(stat, query, x, y);
break;
}
stat.appendSQL(")");
stat.appendSQL(compareType.getString());
stat.appendSQL("" + z);
}
}
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