org.apache.cassandra.db

Class MultiCBuilder

java.lang.Object

org.apache.cassandra.db.MultiCBuilder

public class MultiCBuilder
extends java.lang.Object

Builder that allow to build multiple Clustering/Slice.Bound at the same time.

Method Summary

Modifier and Type	Method and Description
MultiCBuilder	addAllElementsToAll(java.util.List<java.util.List<java.nio.ByteBuffer>> values) Adds individually each of the specified list of elements to the end of all of the existing composites.
MultiCBuilder	addEachElementToAll(java.util.List<java.nio.ByteBuffer> values) Adds individually each of the specified elements to the end of all of the existing clusterings.
MultiCBuilder	addElementToAll(java.nio.ByteBuffer value) Adds the specified element to all the clusterings.
java.util.NavigableSet<Clustering>	build() Builds the clusterings.
java.util.NavigableSet<Slice.Bound>	buildBound(boolean isStart, boolean isInclusive)
java.util.NavigableSet<Slice.Bound>	buildBoundForSlice(boolean isStart, boolean isInclusive, boolean isOtherBoundInclusive, java.util.List<ColumnDefinition> columnDefs) Builds the Slice.Bounds for slice restrictions.
boolean	containsNull() Checks if the clusterings contains null elements.
boolean	containsUnset() Checks if the clusterings contains unset elements.
static MultiCBuilder	create(ClusteringComparator comparator) Creates a new empty MultiCBuilder.
boolean	hasMissingElements() Checks if some empty list of values have been added
boolean	hasRemaining() Checks if some elements can still be added to the clusterings.
int	remainingCount() Returns the number of elements that can be added to the clusterings.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

create

public static MultiCBuilder create(ClusteringComparator comparator)

Creates a new empty MultiCBuilder.

addElementToAll

public MultiCBuilder addElementToAll(java.nio.ByteBuffer value)

Adds the specified element to all the clusterings.

If this builder contains 2 clustering: A-B and A-C a call to this method to add D will result in the clusterings: A-B-D and A-C-D.

Parameters:

value - the value of the next element

Returns:

this MulitCBuilder

addEachElementToAll

public MultiCBuilder addEachElementToAll(java.util.List<java.nio.ByteBuffer> values)

Adds individually each of the specified elements to the end of all of the existing clusterings.

If this builder contains 2 clusterings: A-B and A-C a call to this method to add D and E will result in the 4 clusterings: A-B-D, A-B-E, A-C-D and A-C-E.

Parameters:

values - the elements to add

Returns:

this CompositeBuilder

addAllElementsToAll

public MultiCBuilder addAllElementsToAll(java.util.List<java.util.List<java.nio.ByteBuffer>> values)

Adds individually each of the specified list of elements to the end of all of the existing composites.

If this builder contains 2 composites: A-B and A-C a call to this method to add [[D, E], [F, G]] will result in the 4 composites: A-B-D-E, A-B-F-G, A-C-D-E and A-C-F-G.

Parameters:

values - the elements to add

Returns:

this CompositeBuilder

remainingCount

public int remainingCount()

Returns the number of elements that can be added to the clusterings.

Returns:

the number of elements that can be added to the clusterings.

containsNull

public boolean containsNull()

Checks if the clusterings contains null elements.

Returns:

true if the clusterings contains null elements, false otherwise.

containsUnset

public boolean containsUnset()

Checks if the clusterings contains unset elements.

Returns:

true if the clusterings contains unset elements, false otherwise.

hasMissingElements

public boolean hasMissingElements()

Checks if some empty list of values have been added

Returns:

true if the clusterings have some missing elements, false otherwise.

build

public java.util.NavigableSet<Clustering> build()

Builds the clusterings.

Returns:

the clusterings

buildBoundForSlice

public java.util.NavigableSet<Slice.Bound> buildBoundForSlice(boolean isStart,
                                                              boolean isInclusive,
                                                              boolean isOtherBoundInclusive,
                                                              java.util.List<ColumnDefinition> columnDefs)

Builds the Slice.Bounds for slice restrictions.

Parameters:

isStart - specify if the bound is a start one

isInclusive - specify if the bound is inclusive or not

isOtherBoundInclusive - specify if the other bound is inclusive or not

columnDefs - the columns of the slice restriction

Returns:

the Slice.Bounds

buildBound

public java.util.NavigableSet<Slice.Bound> buildBound(boolean isStart,
                                                      boolean isInclusive)

hasRemaining

public boolean hasRemaining()

Checks if some elements can still be added to the clusterings.

Returns:

true if it is possible to add more elements to the clusterings, false otherwise.