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A JDBC datasource implementation.
/*
* Copyright 1999-2017 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.statement;
import com.alibaba.druid.DbType;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.ast.statement.SQLExplainStatement;
import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlASTVisitor;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
public class MySqlExplainStatement extends SQLExplainStatement implements MySqlStatement {
private boolean describe;
private SQLName tableName;
private SQLName columnName;
private SQLExpr wild;
private SQLExpr connectionId;
private boolean distributeInfo; // for ads
public MySqlExplainStatement() {
super(DbType.mysql);
}
public MySqlExplainStatement(DbType dbType) {
super(dbType);
}
@Override
public void accept0(MySqlASTVisitor visitor) {
if (visitor.visit(this)) {
// tbl_name [col_name | wild]
if (tableName != null) {
tableName.accept(visitor);
if (columnName != null) {
columnName.accept(visitor);
} else if (wild != null) {
wild.accept(visitor);
}
} else {
// {explainable_stmt | FOR CONNECTION connection_id}
if (connectionId != null) {
connectionId.accept(visitor);
} else {
if (statement != null) {
statement.accept(visitor);
}
}
}
}
visitor.endVisit(this);
}
protected void accept0(SQLASTVisitor visitor) {
if (visitor instanceof MySqlASTVisitor) {
accept0((MySqlASTVisitor) visitor);
} else {
super.accept0(visitor);
}
}
public String toString() {
return SQLUtils.toMySqlString(this);
}
public boolean isDescribe() {
return describe;
}
public void setDescribe(boolean describe) {
this.describe = describe;
}
public SQLName getTableName() {
return tableName;
}
public void setTableName(SQLName tableName) {
this.tableName = tableName;
}
public SQLName getColumnName() {
return columnName;
}
public void setColumnName(SQLName columnName) {
this.columnName = columnName;
}
public SQLExpr getWild() {
return wild;
}
public void setWild(SQLExpr wild) {
this.wild = wild;
}
public SQLExpr getConnectionId() {
return connectionId;
}
public void setConnectionId(SQLExpr connectionId) {
this.connectionId = connectionId;
}
public boolean isDistributeInfo() {
return distributeInfo;
}
public void setDistributeInfo(boolean distributeInfo) {
this.distributeInfo = distributeInfo;
}
}