class DataCollection
Describes a table or a view
- Abstract
- This class is abstract
Members
number bloomFilterFalsePositiveChance
False-positive probability for SSTable Bloom filters.
String caching
Level of caching: all, keys_only, rows_only, none
Array clusteringKeys
Array describing the columns that form the clustering key.
Array clusteringOrder
Array describing the clustering order of the columns in the same order as the clusteringKeys.
Array columns
Array describing the table columns.
Object columnsByName
An associative Array of columns by name.
String comment
A human readable comment describing the table.
String compactionClass
Compaction strategy class used for the table.
Object compactionOptions
Associative-array containing the compaction options keys and values.
Object compression
Associative-array containing the compression options.
When compression is enabled, this option defines the probability with which checksums for compressed blocks are checked during reads. The default value for this options is 1.0 (always check).
For Cassandra versions prior to 3.0.0, this method always returns {@code null}.
Number defaultTtl
Returns the default TTL for this table.
Note: this option is not available in Cassandra 1.2 and will return 0 (no default TTL) when connected to 1.2 nodes.
Object extensions
An associative Array containing extra metadata for the table.
For Cassandra versions prior to 3.0.0, this method always returns {@code null}.
number gcGraceSeconds
Specifies the time to wait before garbage collecting tombstones (deletion markers)
number localReadRepairChance
Specifies the probability of read repairs being invoked over all replicas in the current data center.
Returns the maximum index interval option for this table.
Note: this option is available in Cassandra 2.1 and above, and will return {@code null} for earlier versions.
Returns the minimum index interval option for this table.
Note: this option is available in Cassandra 2.1 and above, and will return {@code null} for earlier versions.
String name
Name of the object
Array partitionKeys
Array describing the columns that are part of the partition key.
Boolean populateCacheOnFlush
Whether the populate I/O cache on flush is set on this table.
number readRepairChance
Specifies the probability with which read repairs should be invoked on non-quorum reads. The value must be between 0 and 1.
String speculativeRetry
- Returns the speculative retry option for this table.
Note: this option is not available in Cassandra 1.2 and will return “NONE” (no speculative retry) when connected to 1.2 nodes.
Constructor
DataCollection
(String name)
Creates a new instance of DataCollection