Class Filter

All Implemented Interfaces:
Cloneable, RelOptNode, RelNode
Direct Known Subclasses:
Bindables.BindableFilter, CassandraFilter, ElasticsearchFilter, EnumerableFilter, GeodeFilter, JdbcRules.JdbcFilter, LogicalFilter, MongoFilter, PigFilter

public abstract class Filter
extends SingleRel
Relational expression that iterates over its input and returns elements for which condition evaluates to true.

If the condition allows nulls, then a null value is treated the same as false.

See Also:
LogicalFilter