org.apache.paimon.predicate

类 LeafPredicate

java.lang.Object

org.apache.paimon.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, DataType type, int fieldIndex, String fieldName, List<Object> literals)

方法概要

限定符和类型	方法和说明
LeafPredicate	copyWithNewIndex(int fieldIndex)
boolean	equals(Object o)
String	fieldName()
FieldRef	fieldRef()
LeafFunction	function()
int	hashCode()
int	index()
List<Object>	literals()
Optional<Predicate>	negate()
boolean	test(InternalRow row) Test based on the specific input row.
boolean	test(long rowCount, InternalRow minValues, InternalRow maxValues, InternalArray nullCounts) Test based on the statistical information to determine whether a hit is possible.
String	toString()
DataType	type()
<T> T	visit(PredicateVisitor<T> visitor)

从类继承的方法 java.lang.Object

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

构造器详细资料

LeafPredicate

public LeafPredicate(LeafFunction function,
                     DataType type,
                     int fieldIndex,
                     String fieldName,
                     List<Object> literals)

方法详细资料

function

public LeafFunction function()

type

public DataType type()

index

public int index()

fieldName

public String fieldName()

fieldRef

public FieldRef fieldRef()

literals

public List<Object> literals()

copyWithNewIndex

public LeafPredicate copyWithNewIndex(int fieldIndex)

test

public boolean test(InternalRow row)

从接口复制的说明: Predicate

Test based on the specific input row.

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,
                    InternalRow minValues,
                    InternalRow maxValues,
                    InternalArray nullCounts)

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.

visit

public <T> T visit(PredicateVisitor<T> visitor)

指定者:

visit 在接口中 Predicate

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

toString

public String toString()

覆盖:

toString 在类中 Object