/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* 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.alibaba.druid.sql.dialect.mysql.ast.expr;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLExprImpl;
import com.alibaba.druid.sql.ast.SQLOrderingSpecification;
import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlASTVisitor;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
public class MySqlSelectGroupByExpr extends SQLExprImpl implements MySqlExpr {
protected SQLExpr expr;
protected SQLOrderingSpecification type;
@Override
protected void accept0(SQLASTVisitor visitor) {
MySqlASTVisitor mysqlVisitor = (MySqlASTVisitor) visitor;
if (mysqlVisitor.visit(this)) {
acceptChild(visitor, this.expr);
}
mysqlVisitor.endVisit(this);
}
public SQLExpr getExpr() {
return expr;
}
public void setExpr(SQLExpr expr) {
expr.setParent(this);
this.expr = expr;
}
public SQLOrderingSpecification getType() {
return type;
}
public void setType(SQLOrderingSpecification type) {
this.type = type;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
MySqlSelectGroupByExpr other = (MySqlSelectGroupByExpr) obj;
if (expr != other.expr) {
return false;
}
if (type == null) {
if (other.type != null) {
return false;
}
} else if (!type.equals(other.type)) {
return false;
}
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((expr == null) ? 0 : expr.hashCode());
result = prime * result + ((type == null) ? 0 : type.hashCode());
return result;
}
}