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.dialect.oracle.ast.stmt;
  
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.SQLExpr;
  import com.alibaba.druid.sql.ast.statement.SQLExprTableSource;
  import com.alibaba.druid.sql.dialect.oracle.ast.clause.PartitionExtensionClause;
  import com.alibaba.druid.sql.dialect.oracle.ast.clause.SampleClause;
  import com.alibaba.druid.sql.dialect.oracle.visitor.OracleASTVisitor;
  import com.alibaba.druid.sql.visitor.SQLASTVisitor;
  
  public class OracleSelectTableReference extends SQLExprTableSource implements OracleSelectTableSource {
      private boolean only;
  
      protected PartitionExtensionClause partition;
      protected SampleClause sampleClause;
  
      public OracleSelectTableReference() {
      }
  
      public OracleSelectTableReference(SQLExpr expr) {
          this.setExpr(expr);
      }
  
      public PartitionExtensionClause getPartition() {
          return partition;
      }
  
      public void setPartition(PartitionExtensionClause partition) {
          if (partition != null) {
              partition.setParent(this);
          }
          this.partition = partition;
      }
  
      public boolean isOnly() {
          return this.only;
      }
  
      public void setOnly(boolean only) {
          this.only = only;
      }
  
      public SampleClause getSampleClause() {
          return sampleClause;
      }
  
      public void setSampleClause(SampleClause sampleClause) {
          if (sampleClause != null) {
              sampleClause.setParent(this);
          }
          this.sampleClause = sampleClause;
      }
  
      @Override
      protected void accept0(SQLASTVisitor visitor) {
          if (visitor instanceof OracleASTVisitor) {
              this.accept0((OracleASTVisitor) visitor);
          } else {
              super.accept0(visitor);
          }
      }
  
      protected void accept0(OracleASTVisitor visitor) {
          if (visitor.visit(this)) {
              acceptChild(visitor, this.expr);
              acceptChild(visitor, this.partition);
              acceptChild(visitor, this.sampleClause);
              acceptChild(visitor, this.pivot);
              acceptChild(visitor, this.unpivot);
          }
          visitor.endVisit(this);
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
          if (!super.equals(o)) {
              return false;
          }
  
          OracleSelectTableReference that = (OracleSelectTableReference) o;
  
          if (only != that.only) {
              return false;
          }
          if (pivot != null ? !pivot.equals(that.pivot) : that.pivot != null) {
              return false;
          }
          if (unpivot != null ? !unpivot.equals(that.unpivot) : that.unpivot != null) {
              return false;
          }
          if (partition != null ? !partition.equals(that.partition) : that.partition != null) {
              return false;
          }
          if (sampleClause != null ? !sampleClause.equals(that.sampleClause) : that.sampleClause != null) {
              return false;
          }
          return flashback != null ? flashback.equals(that.flashback) : that.flashback == null;
      }
  
      @Override
      public int hashCode() {
          int result = super.hashCode();
          result = 31 * result + (only ? 1 : 0);
          result = 31 * result + (pivot != null ? pivot.hashCode() : 0);
          result = 31 * result + (unpivot != null ? unpivot.hashCode() : 0);
          result = 31 * result + (partition != null ? partition.hashCode() : 0);
          result = 31 * result + (sampleClause != null ? sampleClause.hashCode() : 0);
          result = 31 * result + (flashback != null ? flashback.hashCode() : 0);
          return result;
      }
  
      public String toString() {
          return SQLUtils.toOracleString(this);
      }
  
      public OracleSelectTableReference clone() {
          OracleSelectTableReference x = new OracleSelectTableReference();
          cloneTo(x);
  
          x.only = only;
  
          if (pivot != null) {
              x.setPivot(pivot.clone());
          }
  
          if (unpivot != null) {
              x.setUnpivot(unpivot.clone());
          }
  
          if (partition != null) {
              x.setPartition(partition.clone());
          }
  
          if (sampleClause != null) {
              x.setSampleClause(sampleClause.clone());
          }
  
          if (flashback != null) {
              setFlashback(flashback.clone());
          }
  
          return x;
      }
  }
  