org.makumba.list.engine.valuecomputer
Class QueryValueComputer

java.lang.Object
  org.makumba.list.engine.valuecomputer.ValueComputer
      org.makumba.list.engine.valuecomputer.QueryValueComputer

Direct Known Subclasses:

NullableValueComputer, SetValueComputer

public abstract class QueryValueComputer
extends ValueComputer

The ValueComputer of a queryMak:value

Author:

Cristian Bogdan

Field Summary

(package private) static Object	dummy
(package private) MultipleKey	queryKey The key of the generated query

Fields inherited from class org.makumba.list.engine.valuecomputer.ValueComputer

expr, parentKey, projectionIndex, type

Constructor Summary

QueryValueComputer()

Method Summary

void	doEndAnalyze(PageCache pageCache) If other ValueComputers sharing the same valueQuery did not analyze it yet, we analyze it here.
(package private) MultipleKey	getQueryKey() The key of the query in which this value is a projection.
void	makeQueryAtAnalysis(MultipleKey parentListKey, String keyDifference, String[] queryProps, String expr, PageCache pageCache) Makes a key that adds the given keyDifference to the tagKey of the parentList, and associates with it a subquery of the parentQuery made from the given queryProps.
(package private) QueryExecution	runQuery(PageContext pageContext) Obtains the iterationGroupData for the valueQuery

Methods inherited from class org.makumba.list.engine.valuecomputer.ValueComputer

getFormattedValue, getProjectionIndex, getType, getValue, getValueComputerAtAnalysis, isPointer, print

Methods inherited from class java.lang.Object

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

Field Detail

queryKey

MultipleKey queryKey

The key of the generated query

dummy

static final Object dummy

Constructor Detail

QueryValueComputer

public QueryValueComputer()

Method Detail

makeQueryAtAnalysis

public void makeQueryAtAnalysis(MultipleKey parentListKey,
                                String keyDifference,
                                String[] queryProps,
                                String expr,
                                PageCache pageCache)

Makes a key that adds the given keyDifference to the tagKey of the parentList, and associates with it a subquery of the parentQuery made from the given queryProps.

Parameters:

analyzed - the analyzed tag

keyDifference -

queryProps -

expr -

pageCache - the page cache of the current page

getQueryKey

MultipleKey getQueryKey()

The key of the query in which this value is a projection. Returns queryKey

Overrides:

getQueryKey in class ValueComputer

Returns:

The key of the parent of the value

doEndAnalyze

public void doEndAnalyze(PageCache pageCache)

If other ValueComputers sharing the same valueQuery did not analyze it yet, we analyze it here.

Overrides:

doEndAnalyze in class ValueComputer

Parameters:

pageCache - the page cache of the current page

runQuery

QueryExecution runQuery(PageContext pageContext)
                  throws LogicException

Obtains the iterationGroupData for the valueQuery

Parameters:

running - the tag that is currently running

Returns:

The QueryExecution that will give us the data

Throws:

LogicException