content: /*
   * 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.ast.expr;
  
  import com.alibaba.druid.sql.ast.SQLDataType;
  import com.alibaba.druid.sql.ast.SQLDataTypeImpl;
  import com.alibaba.druid.sql.ast.SQLObject;
  import com.alibaba.druid.sql.visitor.SQLASTVisitor;
  
  import java.util.Collections;
  import java.util.List;
  
  public class SQLBigIntExpr extends SQLNumericLiteralExpr implements SQLValuableExpr {
      public SQLBigIntExpr() {
          super(new SQLDataTypeImpl(SQLDataType.Constants.BIGINT));
      }
  
      public SQLBigIntExpr(Long value) {
          this();
          this.value = value;
      }
  
      public SQLBigIntExpr(String value) {
          this();
          this.value = Long.valueOf(value);
      }
  
      public SQLBigIntExpr clone() {
          return new SQLBigIntExpr(getValue());
      }
  
      @Override
      public List<SQLObject> getChildren() {
          return Collections.emptyList();
      }
  
      @Override
      public Number getNumber() {
          return getValue();
      }
  
      @Override
      public Long getValue() {
          return (Long) value;
      }
  
      public void setValue(Long value) {
          this.value = value;
      }
  
      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 + ((value == null) ? 0 : value.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;
          }
          SQLBigIntExpr other = (SQLBigIntExpr) obj;
          if (value == null) {
              if (other.value != null) {
                  return false;
              }
          } else if (!value.equals(other.value)) {
              return false;
          }
          return true;
      }
  
      @Override
      public void setNumber(Number number) {
          if (number == null) {
              value = null;
              return;
          }
  
          this.setValue(((Long) number));
      }
  
  }
  