org.apache.flink.table.store.file.predicate

类 LeafPredicate

java.lang.Object

org.apache.flink.table.store.file.predicate.LeafPredicate

所有已实现的接口:

Serializable, Predicate

public class LeafPredicate
extends Object
implements Predicate

Leaf node of a Predicate tree. Compares a field in the row with literals.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
LeafPredicate(LeafFunction function, org.apache.flink.table.types.logical.LogicalType type, int fieldIndex, String fieldName, List<Object> literals)

方法概要

限定符和类型	方法和说明
boolean	equals(Object o)
String	fieldName()
LeafFunction	function()
int	hashCode()
int	index()
List<Object>	literals()
Optional<Predicate>	negate()
boolean	test(long rowCount, FieldStats[] fieldStats) Test based on the statistical information to determine whether a hit is possible.
boolean	test(Object[] values) Test based on the specific input column values.
org.apache.flink.table.types.logical.LogicalType	type()

从类继承的方法 java.lang.Object

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

构造器详细资料

LeafPredicate

public LeafPredicate(LeafFunction function,
                     org.apache.flink.table.types.logical.LogicalType type,
                     int fieldIndex,
                     String fieldName,
                     List<Object> literals)

方法详细资料

function

public LeafFunction function()

type

public org.apache.flink.table.types.logical.LogicalType type()

index

public int index()

fieldName

public String fieldName()

literals

public List<Object> literals()

test

public boolean test(Object[] values)

从接口复制的说明: Predicate

Test based on the specific input column values.

指定者:

test 在接口中 Predicate

返回:

return true when hit, false when not hit.

test

public boolean test(long rowCount,
                    FieldStats[] fieldStats)

从接口复制的说明: Predicate

Test based on the statistical information to determine whether a hit is possible.

指定者:

test 在接口中 Predicate

返回:

return true is likely to hit (there may also be false positives), return false is absolutely not possible to hit.

negate

public Optional<Predicate> negate()

指定者:

negate 在接口中 Predicate

返回:

the negation predicate of this predicate if possible.

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object