Package de.businesscode.bcdui.wrs.load

Class WrqInfo

java.lang.Object

de.businesscode.bcdui.wrs.load.WrqInfo

public class WrqInfo
extends Object

The worker companion of a SqlFromSubSelect. There is a 1:1 relationship between SqlFromSubSelect and WrqInfo Collects knowledge about a single Select in a Wrq. Understands the XM and acts as a POJOe worker for the more high-level SqlFromSubSelect class. There is one WrqQueryBuilder per overall Wrq but one WrqInfo per Select. i.e., different ones on each level if there are sub-selects. Initially taken from WrsSqlGenerator. For older change history see there

Field Summary

Fields

Modifier and Type	Field	Description
protected final SqlFromSubSelect	currentSelect

Constructor Summary

Constructors

Constructor	Description
WrqInfo(SqlFromSubSelect currentSelect, Element selectElem)	Constructor from currentSelect as context and our wrq:Select element

Method Summary

Modifier and Type	Method	Description
Map<String,WrqBindingItem>	getAllBRefAggrs()
Map<String,WrqBindingItem>	getAllBRefs()
Map<String,WrqBindingItem>	getAllOuterContextBRefs()
Set<String>	getAllRawBRefs()
SqlFromSubSelect	getCurrentSelect()
protected String	getDefaultAggr(BindingItem bi)	Usually, the aggregation is defined in the Wrq Element e for the column.
protected Element	getFilterNode()
LinkedHashSet<String>	getFullSelectListBRefs()
Set<String>	getGroupingBRefs()
NodeList	getGroupingChildNode()
protected Element	getGroupingNode()
Set<String>	getHavingBRefs()
protected Element	getHavingNode()
String	getJdbcResourceName()	Convenience method
int	getNextColumnNumber()
BindingItem	getNoMetaDataBindingItem(String id)
protected LinkedHashSet<String>	getOrderingBRefs()
Document	getOwnerDocument()
WrqBindingSet	getResultingBindingSet()
Element	getSelectNode()
SQLStatementWithParams	getSQLSelectWithParams()
NodeList	getTopNs()
protected LinkedHashSet<String>	getUserSelectListBRefs()
Map<String,Set<String>>	getVdm(String bRef)	Return the virtual dimension members for a bRef
Map<String,String>	getVirtualBRefs()
WrqGroupBy2Sql	getWrqGroupBy2Sql()
protected LinkedList<WrsBindingItem>	getWrsCOnlySelectListBRefs()
protected void	initMetaData()	Initializes internal data structures for s single wrq:Select
protected boolean	isEmpty()
boolean	reqHasGroupBy()
boolean	reqHasGroupingFunction()
protected void	selectAllBindingItems()	No binding items are explicitly given in select-clause, collect here all the BindingSet has to offer
void	setReqHasGroupingFunction(Boolean reqHasGroupingFunction)

Methods inherited from class java.lang.Object

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

Field Details

currentSelect

protected final SqlFromSubSelect currentSelect

Constructor Details

WrqInfo

public WrqInfo(SqlFromSubSelect currentSelect,
 Element selectElem)
        throws Exception

Constructor from currentSelect as context and our wrq:Select element

Parameters:

currentSelect -

selectElem -

Throws:

Exception

Method Details

isEmpty

protected boolean isEmpty()

getOrderingBRefs

protected LinkedHashSet<String> getOrderingBRefs()

getFullSelectListBRefs

public LinkedHashSet<String> getFullSelectListBRefs()

getUserSelectListBRefs

protected LinkedHashSet<String> getUserSelectListBRefs()

getWrsCOnlySelectListBRefs

protected LinkedList<WrsBindingItem> getWrsCOnlySelectListBRefs()

getFilterNode

protected Element getFilterNode()
                         throws XPathExpressionException

Throws:

XPathExpressionException

getGroupingNode

protected Element getGroupingNode()
                           throws XPathExpressionException

Throws:

XPathExpressionException

getHavingNode

protected Element getHavingNode()
                         throws XPathExpressionException

Throws:

XPathExpressionException

initMetaData

protected void initMetaData()
                     throws Exception

Initializes internal data structures for s single wrq:Select

Throws:

Exception

selectAllBindingItems

protected void selectAllBindingItems()
                              throws BindingException

No binding items are explicitly given in select-clause, collect here all the BindingSet has to offer

Throws:

BindingException

getDefaultAggr

protected String getDefaultAggr(BindingItem bi)

Usually, the aggregation is defined in the Wrq Element e for the column. There are two cases where not: It is not given (select all, no explicit select list), or the attribute is simply not set. Then we have this mechanism for default-aggregator, the returned aggregator can be trusted (i.e. no SQL injection can happen within this fkt) 1) Wrq/Columns/C/@aggr 2) BindingSet/BindingItem/@aggr 3) MAX() or SUM() depending on the BindingItems data type

Parameters:

bi -

Returns:

getOwnerDocument

public Document getOwnerDocument()

getSelectNode

public Element getSelectNode()

getAllBRefAggrs

public Map<String,WrqBindingItem> getAllBRefAggrs()

getAllBRefs

public Map<String,WrqBindingItem> getAllBRefs()

getVirtualBRefs

public Map<String,String> getVirtualBRefs()

getAllOuterContextBRefs

public Map<String,WrqBindingItem> getAllOuterContextBRefs()

getAllRawBRefs

public Set<String> getAllRawBRefs()

getNoMetaDataBindingItem

public BindingItem getNoMetaDataBindingItem(String id)
                                     throws BindingNotFoundException

Throws:

BindingNotFoundException

getGroupingChildNode

public NodeList getGroupingChildNode()
                              throws XPathExpressionException

Throws:

XPathExpressionException

getTopNs

public NodeList getTopNs()
                  throws XPathExpressionException

Throws:

XPathExpressionException

getNextColumnNumber

public int getNextColumnNumber()

getResultingBindingSet

public WrqBindingSet getResultingBindingSet()

getGroupingBRefs

public Set<String> getGroupingBRefs()

getHavingBRefs

public Set<String> getHavingBRefs()

reqHasGroupingFunction

public boolean reqHasGroupingFunction()

reqHasGroupBy

public boolean reqHasGroupBy()

setReqHasGroupingFunction

public void setReqHasGroupingFunction(Boolean reqHasGroupingFunction)

getJdbcResourceName

public String getJdbcResourceName()

Convenience method

Returns:

getCurrentSelect

public SqlFromSubSelect getCurrentSelect()

getSQLSelectWithParams

public SQLStatementWithParams getSQLSelectWithParams()

getVdm

public Map<String,Set<String>> getVdm(String bRef)

Return the virtual dimension members for a bRef

Parameters:

bRef -

Returns:

getWrqGroupBy2Sql

public WrqGroupBy2Sql getWrqGroupBy2Sql()