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An JDBC datasource implementation.
/*
* Copyright 1999-2018 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.SQLObject;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class SQLVariantRefExpr extends SQLExprImpl {
private String name;
private boolean global = false;
private boolean session = false;
private int index = -1;
public SQLVariantRefExpr(String name){
this.name = name;
}
public SQLVariantRefExpr(String name, boolean global){
this.name = name;
this.global = global;
}
public SQLVariantRefExpr(String name, boolean global,boolean session){
this.name = name;
this.global = global;
this.session = session;
}
public SQLVariantRefExpr(){
}
public int getIndex() {
return index;
}
public void setIndex(int index) {
this.index = index;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public void output(StringBuffer buf) {
buf.append(this.name);
}
public boolean isSession() {
return session;
}
public void setSession(boolean session) {
this.session = session;
}
@Override
protected void accept0(SQLASTVisitor visitor) {
visitor.visit(this);
visitor.endVisit(this);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((name == null) ? 0 : name.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof SQLVariantRefExpr)) {
return false;
}
SQLVariantRefExpr other = (SQLVariantRefExpr) obj;
if (name == null) {
if (other.name != null) {
return false;
}
} else if (!name.equals(other.name)) {
return false;
}
return true;
}
public boolean isGlobal() {
return global;
}
public void setGlobal(boolean global) {
this.global = global;
}
public SQLVariantRefExpr clone() {
SQLVariantRefExpr var = new SQLVariantRefExpr(name, global);
var.index = index;
if (attributes != null) {
var.attributes = new HashMap(attributes.size());
for (Map.Entry entry : attributes.entrySet()) {
String k = entry.getKey();
Object v = entry.getValue();
if (v instanceof SQLObject) {
var.attributes.put(k, ((SQLObject) v).clone());
} else {
var.attributes.put(k, v);
}
}
}
return var;
}
@Override
public List getChildren() {
return Collections.emptyList();
}
}