com.sap.cds.util

Class CqnStatementUtils

java.lang.Object

com.sap.cds.util.CqnStatementUtils

public class CqnStatementUtils
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	CqnStatementUtils.Count
static interface	CqnStatementUtils.LogicalOpertionsSimplifier
static interface	CqnStatementUtils.NegationResolver

Method Summary

Modifier and Type	Method and Description
static boolean	containsExpand(CqnSelect select)
static boolean	containsRef(List<CqnSelectListItem> items)
static CqnSelect	countAllQuery(CqnUpdate update)
static void	ensureKeysAreSelected(CdsStructuredType rowType, CqnSelect select)
static CqnPredicate	extractTargetFilter(CdsStructuredType rowType, CqnUpdate update, boolean useParameters)
static CqnSelect	inlineCountQuery(CqnSelect select)
static boolean	isMediaType(CdsStructuredType type, CqnSelectListItem sli)
static boolean	isSelectStar(List<CqnSelectListItem> columns)
static boolean	isToOnePath(CdsStructuredType rowType, List<? extends CqnReference.Segment> segments)
static CqnPredicate	linkKeysToOuterQuery(CdsStructuredType target)
static void	moveKeyValuesToWhere(CdsStructuredType rowType, CqnUpdate update, boolean useParameters)
static CqnSelect	removeVirtualElements(CqnSelect select, CdsStructuredType rowType)
static <S extends CqnStatement> S	resolveKeyPlaceholder(CdsStructuredType rowType, S statement)
static CqnSelect	resolveStar(CqnSelect select, CdsStructuredType rowType)
static List<CqnSelectListItem>	resolveStar(List<CqnSelectListItem> items, Collection<String> excluding, CdsStructuredType rowType)
static CqnSelect	resolveToOneExpands(CqnSelect select, CdsStructuredType target)
static CqnSelect	resolveVirtualElements(CqnSelect select, CdsStructuredType root)
static CdsStructuredType	rowType(CdsModel model, CqnSelect query)
static CdsStructuredType	rowType(CdsModel model, CqnSource source)
static Stream<CqnSelectListValue>	selectedRefs(CqnSelect select)
static CqnSelect	simplify(CdsStructuredType rowType, CqnSelect select)
static Predicate	simplifyPredicate(CqnPredicate pred)
static CdsStructuredType	targetType(CdsModel model, CqnSelect select)
static CqnSelect	unfoldInline(CqnSelect select, CdsStructuredType root)

Methods inherited from class java.lang.Object

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

Method Detail

containsExpand

public static boolean containsExpand(CqnSelect select)

selectedRefs

public static Stream<CqnSelectListValue> selectedRefs(CqnSelect select)

ensureKeysAreSelected

public static void ensureKeysAreSelected(CdsStructuredType rowType,
                                         CqnSelect select)

containsRef

public static boolean containsRef(List<CqnSelectListItem> items)

extractTargetFilter

public static CqnPredicate extractTargetFilter(CdsStructuredType rowType,
                                               CqnUpdate update,
                                               boolean useParameters)

resolveKeyPlaceholder

public static <S extends CqnStatement> S resolveKeyPlaceholder(CdsStructuredType rowType,
                                                               S statement)

moveKeyValuesToWhere

public static void moveKeyValuesToWhere(CdsStructuredType rowType,
                                        CqnUpdate update,
                                        boolean useParameters)

countAllQuery

public static CqnSelect countAllQuery(CqnUpdate update)

inlineCountQuery

public static CqnSelect inlineCountQuery(CqnSelect select)

simplifyPredicate

public static Predicate simplifyPredicate(CqnPredicate pred)

resolveStar

public static List<CqnSelectListItem> resolveStar(List<CqnSelectListItem> items,
                                                  Collection<String> excluding,
                                                  CdsStructuredType rowType)

resolveStar

public static CqnSelect resolveStar(CqnSelect select,
                                    CdsStructuredType rowType)

isSelectStar

public static boolean isSelectStar(List<CqnSelectListItem> columns)

targetType

public static CdsStructuredType targetType(CdsModel model,
                                           CqnSelect select)

rowType

public static CdsStructuredType rowType(CdsModel model,
                                        CqnSource source)

rowType

public static CdsStructuredType rowType(CdsModel model,
                                        CqnSelect query)

resolveVirtualElements

public static CqnSelect resolveVirtualElements(CqnSelect select,
                                               CdsStructuredType root)

unfoldInline

public static CqnSelect unfoldInline(CqnSelect select,
                                     CdsStructuredType root)

simplify

public static CqnSelect simplify(CdsStructuredType rowType,
                                 CqnSelect select)

resolveToOneExpands

public static CqnSelect resolveToOneExpands(CqnSelect select,
                                            CdsStructuredType target)

isToOnePath

public static boolean isToOnePath(CdsStructuredType rowType,
                                  List<? extends CqnReference.Segment> segments)

isMediaType

public static boolean isMediaType(CdsStructuredType type,
                                  CqnSelectListItem sli)

linkKeysToOuterQuery

public static CqnPredicate linkKeysToOuterQuery(CdsStructuredType target)

removeVirtualElements

public static CqnSelect removeVirtualElements(CqnSelect select,
                                              CdsStructuredType rowType)