org.delia.db.sql.prepared

Class SelectFuncHelper

java.lang.Object

org.delia.core.ServiceBase

org.delia.db.sql.prepared.SelectFuncHelper

Direct Known Subclasses:

PostgresSelectFuncHelper

public class SelectFuncHelper
extends ServiceBase

Field Summary

Fields

Modifier and Type	Field and Description
protected DTypeRegistry	registry

Fields inherited from class org.delia.core.ServiceBase

et, factorySvc, log

Constructor Summary

Constructors

Constructor and Description
SelectFuncHelper(FactoryService factorySvc, DTypeRegistry registry)

Method Summary

Modifier and Type	Method and Description
protected DType	determineFieldTypeForFn(QuerySpec spec, String fnName)
QuerySpec	doFirstFixup(QuerySpec specOriginal, String typeName)
void	doInnerOrderBy(StrCreator sc, QuerySpec spec, String typeName, QueryFuncExp qfexp)
QuerySpec	doLastFixup(QuerySpec specOriginal, String typeName)
void	doLimitIfPresent(StrCreator sc, QuerySpec spec, String typeName)
void	doOffsetIfPresent(StrCreator sc, QuerySpec spec, String typeName)
void	doOrderByIfPresent(StrCreator sc, QuerySpec spec, String typeName)
String	findFieldNameUsingFn(QuerySpec spec, String targetFnName)
protected QueryFieldExp	findFieldUsingFn(QuerySpec spec, String targetFnName)
protected QueryFuncExp	findFn(QuerySpec spec, String targetFnName)
DType	getSelectResultType(QuerySpec spec)
boolean	isCountPresent(QuerySpec spec)
boolean	isExistsPresent(QuerySpec spec)
boolean	isFirstPresent(QuerySpec spec)
boolean	isLastPresent(QuerySpec spec)
boolean	isMaxPresent(QuerySpec spec)
boolean	isMinPresent(QuerySpec spec)
boolean	isOrderByPresent(QuerySpec spec)
protected QuerySpec	makeCopy(QuerySpec spec)

Methods inherited from class java.lang.Object

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

Field Detail

registry

protected DTypeRegistry registry

Constructor Detail

SelectFuncHelper

public SelectFuncHelper(FactoryService factorySvc,
                        DTypeRegistry registry)

Method Detail

getSelectResultType

public DType getSelectResultType(QuerySpec spec)

determineFieldTypeForFn

protected DType determineFieldTypeForFn(QuerySpec spec,
                                        String fnName)

doOrderByIfPresent

public void doOrderByIfPresent(StrCreator sc,
                               QuerySpec spec,
                               String typeName)

doInnerOrderBy

public void doInnerOrderBy(StrCreator sc,
                           QuerySpec spec,
                           String typeName,
                           QueryFuncExp qfexp)

doOffsetIfPresent

public void doOffsetIfPresent(StrCreator sc,
                              QuerySpec spec,
                              String typeName)

doLimitIfPresent

public void doLimitIfPresent(StrCreator sc,
                             QuerySpec spec,
                             String typeName)

doFirstFixup

public QuerySpec doFirstFixup(QuerySpec specOriginal,
                              String typeName)

doLastFixup

public QuerySpec doLastFixup(QuerySpec specOriginal,
                             String typeName)

makeCopy

protected QuerySpec makeCopy(QuerySpec spec)

isOrderByPresent

public boolean isOrderByPresent(QuerySpec spec)

isCountPresent

public boolean isCountPresent(QuerySpec spec)

isExistsPresent

public boolean isExistsPresent(QuerySpec spec)

isMinPresent

public boolean isMinPresent(QuerySpec spec)

isMaxPresent

public boolean isMaxPresent(QuerySpec spec)

isFirstPresent

public boolean isFirstPresent(QuerySpec spec)

isLastPresent

public boolean isLastPresent(QuerySpec spec)

findFn

protected QueryFuncExp findFn(QuerySpec spec,
                              String targetFnName)

findFieldNameUsingFn

public String findFieldNameUsingFn(QuerySpec spec,
                                   String targetFnName)

findFieldUsingFn

protected QueryFieldExp findFieldUsingFn(QuerySpec spec,
                                         String targetFnName)