org.apache.shardingsphere.infra.federation.optimizer.converter.segment

接口 SQLSegmentConverter<S extends org.apache.shardingsphere.sql.parser.sql.common.segment.SQLSegment,T extends org.apache.calcite.sql.SqlNode>

类型参数:

S - type of SQL segment

T - type of SQL node

所有已知实现类:

AggregationProjectionConverter, BetweenExpressionConverter, BinaryOperationExpressionConverter, ColumnConverter, ColumnOrderByItemConverter, ColumnProjectionConverter, DistinctConverter, ExistsSubqueryExpressionConverter, ExpressionConverter, ExpressionOrderByItemConverter, ExpressionProjectionConverter, FunctionConverter, GroupByConverter, HavingConverter, IndexOrderByItemConverter, InExpressionConverter, JoinTableConverter, ListExpressionConverter, LiteralExpressionConverter, OrderByConverter, PaginationValueSQLConverter, ParameterMarkerExpressionConverter, ProjectionsConverter, ShorthandProjectionConverter, SimpleTableConverter, SubqueryExpressionConverter, SubqueryProjectionConverter, SubqueryTableConverter, TableConverter, WhereConverter

public interface SQLSegmentConverter<S extends org.apache.shardingsphere.sql.parser.sql.common.segment.SQLSegment,T extends org.apache.calcite.sql.SqlNode>

SQL segment converter.

方法概要

限定符和类型	方法和说明
Optional<T>	convert(S segment) Convert.

方法详细资料

convert

Optional<T> convert(S segment)

Convert.

参数:

segment - SQL segment be to converted

返回:

converted SQL node