Package org.apache.calcite.materialize
Enum MapSqlStatisticProvider
- java.lang.Object
-
- java.lang.Enum<MapSqlStatisticProvider>
-
- org.apache.calcite.materialize.MapSqlStatisticProvider
-
- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<MapSqlStatisticProvider>
,SqlStatisticProvider
public enum MapSqlStatisticProvider extends java.lang.Enum<MapSqlStatisticProvider> implements SqlStatisticProvider
Implementation ofSqlStatisticProvider
that looks up values in a table.Only for testing.
-
-
Enum Constant Summary
Enum Constants Enum Constant Description INSTANCE
-
Field Summary
Fields Modifier and Type Field Description private static java.util.Map<java.lang.String,java.lang.Double>
CARDINALITY_MAP
-
Constructor Summary
Constructors Modifier Constructor Description private
MapSqlStatisticProvider()
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description double
tableCardinality(java.util.List<java.lang.String> qualifiedTableName)
static MapSqlStatisticProvider
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static MapSqlStatisticProvider[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
-
-
-
Enum Constant Detail
-
INSTANCE
public static final MapSqlStatisticProvider INSTANCE
-
-
Method Detail
-
values
public static MapSqlStatisticProvider[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (MapSqlStatisticProvider c : MapSqlStatisticProvider.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
-
valueOf
public static MapSqlStatisticProvider valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
-
tableCardinality
public double tableCardinality(java.util.List<java.lang.String> qualifiedTableName)
- Specified by:
tableCardinality
in interfaceSqlStatisticProvider
-
-