com.alibaba.innodb.java.reader.service

接口 IndexService

所有已知实现类:

IndexServiceImpl

public interface IndexService

Index service

作者:

xu.zx

方法概要

限定符和类型	方法和说明
Iterator<GenericRecord>	getQueryAllIterator() Return an iterator to query all records of a tablespace This is friendly to memory since only one page is loaded per batch
Iterator<GenericRecord>	getRangeQueryIterator(Object lowerInclusiveKey, Object upperExclusiveKey) Return an iterator to do range query records by primary key in a tablespace This is friendly to memory since only one page is loaded per batch
List<GenericRecord>	queryAll(Optional<java.util.function.Predicate<GenericRecord>> recordPredicate) query all records of a tablespace Note this will cause out-of-memory if the table is too big
List<GenericRecord>	queryByPageNumber(int pageNumber) query all records by single page
List<GenericRecord>	queryByPageNumber(long pageNumber) query all records by single page
GenericRecord	queryByPrimaryKey(Object key) query record by primary key in a tablespace
List<GenericRecord>	rangeQueryByPrimaryKey(Object lowerInclusiveKey, Object upperExclusiveKey, Optional<java.util.function.Predicate<GenericRecord>> recordPredicate) range query records by primary key in a tablespace Note this will cause out-of-memory if there are too many records within the range

方法详细资料

queryByPageNumber

List<GenericRecord> queryByPageNumber(int pageNumber)

query all records by single page

参数:

pageNumber - page number (int type), can be leaf or non-leaf page

返回:

list of records

queryByPageNumber

List<GenericRecord> queryByPageNumber(long pageNumber)

query all records by single page

参数:

pageNumber - page number (long type), can be leaf or non-leaf page

返回:

list of records

queryByPrimaryKey

GenericRecord queryByPrimaryKey(Object key)

query record by primary key in a tablespace

参数:

key - primary key

返回:

record

queryAll

List<GenericRecord> queryAll(Optional<java.util.function.Predicate<GenericRecord>> recordPredicate)

query all records of a tablespace

Note this will cause out-of-memory if the table is too big

参数:

recordPredicate - optional. evaluating record, if true then it will be added to result set, else skip it

返回:

all records

rangeQueryByPrimaryKey

List<GenericRecord> rangeQueryByPrimaryKey(Object lowerInclusiveKey,
                                           Object upperExclusiveKey,
                                           Optional<java.util.function.Predicate<GenericRecord>> recordPredicate)

range query records by primary key in a tablespace

Note this will cause out-of-memory if there are too many records within the range

参数:

lowerInclusiveKey - lower bound, inclusive, if set to null means no limit for lower

upperExclusiveKey - upper bound, exclusive, if set to null means no limit for upper

recordPredicate - optional. evaluating record, if true then it will be added to result set, else skip it

返回:

list of records

getQueryAllIterator

Iterator<GenericRecord> getQueryAllIterator()

Return an iterator to query all records of a tablespace

This is friendly to memory since only one page is loaded per batch

返回:

record iterator

getRangeQueryIterator

Iterator<GenericRecord> getRangeQueryIterator(Object lowerInclusiveKey,
                                              Object upperExclusiveKey)

Return an iterator to do range query records by primary key in a tablespace

This is friendly to memory since only one page is loaded per batch

参数:

lowerInclusiveKey - lower bound, inclusive, if set to null means no limit for lower

upperExclusiveKey - upper bound, exclusive, if set to null means no limit for upper

返回:

record iterator