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package org.apache.cassandra.cql3.restrictions;

import org.apache.cassandra.cql3.QueryOptions;
import org.apache.cassandra.cql3.statements.Bound;
import org.apache.cassandra.db.MultiCBuilder;

A single restriction/clause on one or multiple column.
/** * A single restriction/clause on one or multiple column. */
public interface SingleRestriction extends Restriction { public default boolean isSlice() { return false; } public default boolean isEQ() { return false; } public default boolean isLIKE() { return false; } public default boolean isIN() { return false; } public default boolean isContains() { return false; } public default boolean isNotNull() { return false; } public default boolean isMultiColumn() { return false; }
Checks if the specified bound is set or not.
Params:
  • b – the bound type
Returns:true if the specified bound is set, false otherwise
/** * Checks if the specified bound is set or not. * @param b the bound type * @return <code>true</code> if the specified bound is set, <code>false</code> otherwise */
public default boolean hasBound(Bound b) { return true; }
Checks if the specified bound is inclusive or not.
Params:
  • b – the bound type
Returns:true if the specified bound is inclusive, false otherwise
/** * Checks if the specified bound is inclusive or not. * @param b the bound type * @return <code>true</code> if the specified bound is inclusive, <code>false</code> otherwise */
public default boolean isInclusive(Bound b) { return true; }
Merges this restriction with the specified one.

Restriction are immutable. Therefore merging two restrictions result in a new one. The reason behind this choice is that it allow a great flexibility in the way the merging can done while preventing any side effect.

Params:
  • otherRestriction – the restriction to merge into this one
Returns:the restriction resulting of the merge
/** * Merges this restriction with the specified one. * * <p>Restriction are immutable. Therefore merging two restrictions result in a new one. * The reason behind this choice is that it allow a great flexibility in the way the merging can done while * preventing any side effect.</p> * * @param otherRestriction the restriction to merge into this one * @return the restriction resulting of the merge */
public SingleRestriction mergeWith(SingleRestriction otherRestriction);
Appends the values of this SingleRestriction to the specified builder.
Params:
  • builder – the MultiCBuilder to append to.
  • options – the query options
Returns:the MultiCBuilder
/** * Appends the values of this <code>SingleRestriction</code> to the specified builder. * * @param builder the <code>MultiCBuilder</code> to append to. * @param options the query options * @return the <code>MultiCBuilder</code> */
public MultiCBuilder appendTo(MultiCBuilder builder, QueryOptions options);
Appends the values of the SingleRestriction for the specified bound to the specified builder.
Params:
  • builder – the MultiCBuilder to append to.
  • bound – the bound
  • options – the query options
Returns:the MultiCBuilder
/** * Appends the values of the <code>SingleRestriction</code> for the specified bound to the specified builder. * * @param builder the <code>MultiCBuilder</code> to append to. * @param bound the bound * @param options the query options * @return the <code>MultiCBuilder</code> */
public default MultiCBuilder appendBoundTo(MultiCBuilder builder, Bound bound, QueryOptions options) { return appendTo(builder, options); } }