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An JDBC datasource implementation.
/*
* 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.ast.expr;
import com.alibaba.druid.sql.ast.SQLExprImpl;
import com.alibaba.druid.sql.ast.statement.SQLSelect;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
public class SQLSomeExpr extends SQLExprImpl {
private static final long serialVersionUID = 1L;
public SQLSelect subQuery;
public SQLSomeExpr(){
}
public SQLSomeExpr(SQLSelect select){
this.subQuery = select;
}
public SQLSelect getSubQuery() {
return this.subQuery;
}
public void setSubQuery(SQLSelect subQuery) {
this.subQuery = subQuery;
}
public void output(StringBuffer buf) {
this.subQuery.output(buf);
}
@Override
protected void accept0(SQLASTVisitor visitor) {
if (visitor.visit(this)) {
acceptChild(visitor, this.subQuery);
}
visitor.endVisit(this);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((subQuery == null) ? 0 : subQuery.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
SQLSomeExpr other = (SQLSomeExpr) obj;
if (subQuery == null) {
if (other.subQuery != null) {
return false;
}
} else if (!subQuery.equals(other.subQuery)) {
return false;
}
return true;
}
}