com.lambkit.db.sql.criterion.expression.LogicalExpression Maven / Gradle / Ivy
/**
* Copyright (c) 2015-2017, Henry Yang 杨勇 ([email protected]).
*
* 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.lambkit.db.sql.criterion.expression;
import java.io.Serializable;
import com.lambkit.db.sql.criterion.Criteria;
import com.lambkit.db.sql.criterion.Criterion;
import com.lambkit.db.sql.criterion.SqlParas;
public class LogicalExpression implements Criterion, Serializable {
private static final long serialVersionUID = 1L;
private Criterion lhs, rhs;
private String op;
public LogicalExpression(Criterion lhs, Criterion rhs, String op) {
// TODO Auto-generated constructor stub
this.lhs = lhs;
this.rhs = rhs;
this.op = op;
}
@Override
public SqlParas getSqlParas(Criteria criteria) {
// TODO Auto-generated method stub
SqlParas csql = lhs.getSqlParas(criteria);
if(op.equalsIgnoreCase("and")) {
csql.and(criteria, rhs);
} else if(op.equalsIgnoreCase("or")) {
csql.or(criteria, rhs);
}
StringBuilder sb = new StringBuilder();
sb.append("(");
sb.append(csql.getSql());
sb.append(")");
csql.setSql(sb.toString());
return csql;
}
}