Package com.ibm.fhir.database.utils.query.expression

Interface StatementRenderer<T>

All Known Implementing Classes:

StringStatementRenderer

public interface StatementRenderer<T>

Defines the contract for rendering statements. Can be used to address small differences in database syntax and some simple optimizations/query rewrites if necessary

Method Summary

Modifier and Type	Method	Description
T	alias(String alias)
T	from(List<FromItem> items)
T	fromItem(FromItem item)	Render the given item
T	fromItem(T subValue, T aliasValue)
T	fullOuterJoin(T joinFromValue, T joinOnValue)
T	innerJoin(T joinFromValue, T joinOnValue)
T	leftOuterJoin(T joinFromValue, T joinOnValue)
T	render(ExpNode joinOnPredicate)
T	rowSource(String schemaName, String tableName)
T	rowSource(T sub)
T	select(boolean distinct, SelectList selectList, FromClause fromClause, WhereClause whereClause, GroupByClause groupByClause, HavingClause havingClause, OrderByClause orderByClause, PaginationClause paginationClause, boolean unionAll, Select union)	Render the select statement using each of the components, some of which may be optional (null)

Method Detail

select

T select(boolean distinct,
         SelectList selectList,
         FromClause fromClause,
         WhereClause whereClause,
         GroupByClause groupByClause,
         HavingClause havingClause,
         OrderByClause orderByClause,
         PaginationClause paginationClause,
         boolean unionAll,
         Select union)

Render the select statement using each of the components, some of which may be optional (null)

Parameters:

distinct -

selectList -

fromClause -

whereClause -

groupByClause -

havingClause -

orderByClause -

paginationClause -

unionAll -

union -

Returns:

from

T from(List<FromItem> items)

Parameters:

items -

Returns:

fromItem

T fromItem(FromItem item)

Render the given item

Parameters:

item -

Returns:

rowSource

T rowSource(T sub)

Parameters:

sub -

Returns:

fromItem

T fromItem(T subValue,
           T aliasValue)

Parameters:

subValue -

aliasValue -

Returns:

alias

T alias(String alias)

Parameters:

alias -

Returns:

rowSource

T rowSource(String schemaName,
            String tableName)

Parameters:

schemaName -

tableName -

Returns:

render

T render(ExpNode joinOnPredicate)

Parameters:

joinOnPredicate -

Returns:

innerJoin

T innerJoin(T joinFromValue,
            T joinOnValue)

Parameters:

joinFromValue -

joinOnValue -

Returns:

leftOuterJoin

T leftOuterJoin(T joinFromValue,
                T joinOnValue)

Parameters:

joinFromValue -

joinOnValue -

Returns:

fullOuterJoin

T fullOuterJoin(T joinFromValue,
                T joinOnValue)

Parameters:

joinFromValue -

joinOnValue -

Returns: