content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.cassandra.cql3.restrictions;
  
  import java.util.List;
  
  import org.apache.commons.lang3.builder.ToStringBuilder;
  import org.apache.commons.lang3.builder.ToStringStyle;
  
  import org.apache.cassandra.cql3.QueryOptions;
  import org.apache.cassandra.cql3.functions.Function;
  import org.apache.cassandra.db.filter.IndexHints;
  import org.apache.cassandra.db.filter.RowFilter;
  import org.apache.cassandra.index.Index;
  import org.apache.cassandra.index.IndexRegistry;
  import org.apache.cassandra.schema.ColumnMetadata;
  
  /**
   * A {@link RestrictionSet} wrapper that can be extended to allow to modify the {@code RestrictionSet}
   * behaviour without breaking its immutability. Subclasses should be immutable.
   */
  class RestrictionSetWrapper implements Restrictions
  {
      /**
       * The wrapped <code>RestrictionSet</code>.
       */
      protected final RestrictionSet restrictions;
  
      public RestrictionSetWrapper(RestrictionSet restrictions)
      {
          this.restrictions = restrictions;
      }
  
      public void addToRowFilter(RowFilter filter,
                                 IndexRegistry indexRegistry,
                                 QueryOptions options,
                                 IndexHints indexHints)
      {
          restrictions.addToRowFilter(filter, indexRegistry, options, indexHints);
      }
  
      public List<ColumnMetadata> columns()
      {
          return restrictions.columns();
      }
  
      public void addFunctionsTo(List<Function> functions)
      {
          restrictions.addFunctionsTo(functions);
      }
  
      @Override
      public boolean isRestrictedByEquals(ColumnMetadata column)
      {
          return restrictions.isRestrictedByEquals(column);
      }
  
      @Override
      public boolean isRestrictedByEqualsOrIN(ColumnMetadata column)
      {
          return restrictions.isRestrictedByEqualsOrIN(column);
      }
  
      public boolean isEmpty()
      {
          return restrictions.isEmpty();
      }
  
      public int size()
      {
          return restrictions.size();
      }
  
      public boolean hasSupportingIndex(Iterable<Index> indexes, IndexHints indexHints)
      {
          return restrictions.hasSupportingIndex(indexes, indexHints);
      }
  
      @Override
      public Index findSupportingIndex(Iterable<Index> indexes, IndexHints indexHints)
      {
          return restrictions.findSupportingIndex(indexes, indexHints);
      }
  
      @Override
      public boolean needsFiltering(Index.Group indexGroup, IndexHints indexHints)
      {
          return restrictions.needsFiltering(indexGroup, indexHints);
      }
  
      @Override
      public boolean needsFilteringOrIndexing()
      {
          return restrictions.needsFilteringOrIndexing();
      }
  
      public ColumnMetadata firstColumn()
      {
          return restrictions.firstColumn();
      }
  
      public ColumnMetadata lastColumn()
      {
          return restrictions.lastColumn();
      }
  
      public boolean hasSlice()
      {
          return restrictions.hasSlice();
      }
  
      @Override
      public boolean hasIN()
      {
          return restrictions.hasIN();
      }
  
      public boolean hasOnlyEqualityRestrictions()
      {
          for (ColumnMetadata column : columns())
          {
              if (!isRestrictedByEqualsOrIN(column))
                  return false;
          }
          return true;
      }
  
      @Override
      public String toString()
      {
          return ToStringBuilder.reflectionToString(this, ToStringStyle.SHORT_PREFIX_STYLE);
      }
  }
  