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 * 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
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 *     http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.cassandra.cql3.restrictions;

import java.util.List;

import org.apache.cassandra.config.ColumnDefinition;
import org.apache.cassandra.cql3.QueryOptions;
import org.apache.cassandra.cql3.functions.Function;
import org.apache.cassandra.db.filter.RowFilter;
import org.apache.cassandra.index.SecondaryIndexManager;

Implementation of this class must be immutable.

/** * <p>Implementation of this class must be immutable.</p> */
public interface Restriction { public default boolean isOnToken() { return false; }
Returns the definition of the first column.
Returns:the definition of the first column.
/** * Returns the definition of the first column. * @return the definition of the first column. */
public ColumnDefinition getFirstColumn();
Returns the definition of the last column.
Returns:the definition of the last column.
/** * Returns the definition of the last column. * @return the definition of the last column. */
public ColumnDefinition getLastColumn();
Returns the column definitions in position order.
Returns:the column definitions in position order.
/** * Returns the column definitions in position order. * @return the column definitions in position order. */
public List<ColumnDefinition> getColumnDefs();
Adds all functions (native and user-defined) used by any component of the restriction to the specified list.
Params:
  • functions – the list to add to
/** * Adds all functions (native and user-defined) used by any component of the restriction * to the specified list. * @param functions the list to add to */
void addFunctionsTo(List<Function> functions);
Check if the restriction is on indexed columns.
Params:
  • indexManager – the index manager
Returns:true if the restriction is on indexed columns, false
/** * Check if the restriction is on indexed columns. * * @param indexManager the index manager * @return <code>true</code> if the restriction is on indexed columns, <code>false</code> */
public boolean hasSupportingIndex(SecondaryIndexManager indexManager);
Adds to the specified row filter the expressions corresponding to this Restriction.
Params:
  • filter – the row filter to add expressions to
  • indexManager – the secondary index manager
  • options – the query options
/** * Adds to the specified row filter the expressions corresponding to this <code>Restriction</code>. * * @param filter the row filter to add expressions to * @param indexManager the secondary index manager * @param options the query options */
public void addRowFilterTo(RowFilter filter, SecondaryIndexManager indexManager, QueryOptions options); }