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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;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.expr.SQLIntegerExpr;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
import com.alibaba.druid.util.FnvHash;
import java.util.ArrayList;
import java.util.List;
public class SQLDataTypeImpl extends SQLObjectImpl implements SQLDataType {
private String name;
private long nameHashCode64;
protected final List arguments = new ArrayList();
private Boolean withTimeZone;
private boolean withLocalTimeZone = false;
private String dbType;
private boolean unsigned;
private boolean zerofill;
public SQLDataTypeImpl(){
}
public SQLDataTypeImpl(String name){
this.name = name;
}
public SQLDataTypeImpl(String name, int precision) {
this(name);
addArgument(new SQLIntegerExpr(precision));
}
public SQLDataTypeImpl(String name, SQLExpr arg) {
this(name);
addArgument(arg);
}
public SQLDataTypeImpl(String name, int precision, int scale) {
this(name);
addArgument(new SQLIntegerExpr(precision));
addArgument(new SQLIntegerExpr(scale));
}
@Override
protected void accept0(SQLASTVisitor visitor) {
if (visitor.visit(this)) {
acceptChild(visitor, this.arguments);
}
visitor.endVisit(this);
}
public String getName() {
return this.name;
}
public long nameHashCode64() {
if (nameHashCode64 == 0) {
nameHashCode64 = FnvHash.hashCode64(name);
}
return nameHashCode64;
}
public void setName(String name) {
this.name = name;
nameHashCode64 = 0L;
}
public List getArguments() {
return this.arguments;
}
public void addArgument(SQLExpr argument) {
if (argument != null) {
argument.setParent(this);
}
this.arguments.add(argument);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
SQLDataTypeImpl dataType = (SQLDataTypeImpl) o;
if (name != null ? !name.equals(dataType.name) : dataType.name != null) return false;
if (arguments != null ? !arguments.equals(dataType.arguments) : dataType.arguments != null) return false;
return withTimeZone != null ? withTimeZone.equals(dataType.withTimeZone) : dataType.withTimeZone == null;
}
@Override
public int hashCode() {
long value = nameHashCode64();
return (int)(value ^ (value >>> 32));
}
@Override
public Boolean getWithTimeZone() {
return withTimeZone;
}
public void setWithTimeZone(Boolean withTimeZone) {
this.withTimeZone = withTimeZone;
}
public boolean isWithLocalTimeZone() {
return withLocalTimeZone;
}
public void setWithLocalTimeZone(boolean withLocalTimeZone) {
this.withLocalTimeZone = withLocalTimeZone;
}
public String getDbType() {
return dbType;
}
public void setDbType(String dbType) {
this.dbType = dbType;
}
public SQLDataTypeImpl clone() {
SQLDataTypeImpl x = new SQLDataTypeImpl();
cloneTo(x);
return x;
}
public void cloneTo(SQLDataTypeImpl x) {
x.dbType = dbType;
x.name = name;
x.nameHashCode64 = nameHashCode64;
for (SQLExpr arg : arguments) {
x.addArgument(arg.clone());
}
x.withTimeZone = withTimeZone;
x.withLocalTimeZone = withLocalTimeZone;
x.zerofill = zerofill;
x.unsigned = unsigned;
}
public String toString() {
return SQLUtils.toSQLString(this, dbType);
}
public boolean isUnsigned() {
return unsigned;
}
public void setUnsigned(boolean unsigned) {
this.unsigned = unsigned;
}
public boolean isZerofill() {
return zerofill;
}
public void setZerofill(boolean zerofill) {
this.zerofill = zerofill;
}
}