org.makumba.providers
Class QueryAnalysisProvider

java.lang.Object
  org.makumba.providers.QueryAnalysisProvider

Direct Known Subclasses:

HQLQueryAnalysisProvider, MqlQueryAnalysisProvider, OQLQueryAnalysisProvider

public abstract class QueryAnalysisProvider
extends Object

Version:

$Id: QueryAnalysisProvider.java 3691 2009-02-11 00:28:38Z rosso_nero $

Author:

Field Summary

(package private) boolean	initializedCache
(package private) NamedResources	inlinedQueries

Constructor Summary

QueryAnalysisProvider()

Method Summary

Object	checkExprSetOrNullable(String from, String expr) Checks if an expression is valid, nullable or set
Object	checkLabelSetOrNullable(String from, String referenceSequence) Checks if an id is nullable, and if so, return the path to the null pointer
abstract FieldDefinition	getAlternativeField(DataDefinition dd, String fn) Returns a possible alternative field to the one indicated.
abstract String	getParameterSyntax() return the first character(s) in a parameter designator
abstract String	getPrimaryKeyNotation(String label) Returns the notation of the primary key in the query language
QueryAnalysis	getQueryAnalysis(String query)
protected abstract QueryAnalysis	getRawQueryAnalysis(String query)
String	inlineFunctions(String query)
(package private) static boolean	isMakId(char c) Checks if a character can be part of a makumba identifier
static void	main(String[] args)
abstract boolean	selectGroupOrOrderAsLabels() Returns whether the GROUP BY or ORDER BY sections can include labels

Methods inherited from class java.lang.Object

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

Field Detail

inlinedQueries

NamedResources inlinedQueries

initializedCache

boolean initializedCache

Constructor Detail

QueryAnalysisProvider

public QueryAnalysisProvider()

Method Detail

getRawQueryAnalysis

protected abstract QueryAnalysis getRawQueryAnalysis(String query)

getQueryAnalysis

public QueryAnalysis getQueryAnalysis(String query)

inlineFunctions

public String inlineFunctions(String query)

selectGroupOrOrderAsLabels

public abstract boolean selectGroupOrOrderAsLabels()

Returns whether the GROUP BY or ORDER BY sections can include labels

getAlternativeField

public abstract FieldDefinition getAlternativeField(DataDefinition dd,
                                                    String fn)

Returns a possible alternative field to the one indicated.

getPrimaryKeyNotation

public abstract String getPrimaryKeyNotation(String label)

Returns the notation of the primary key in the query language

Parameters:

label - the label of the object

Returns:

the notation for the primary key of the object

checkExprSetOrNullable

public Object checkExprSetOrNullable(String from,
                                     String expr)

Checks if an expression is valid, nullable or set

Parameters:

expr - the expression

Returns:

The path to the null pointer (if the object is nullable), null otherwise

isMakId

static boolean isMakId(char c)

Checks if a character can be part of a makumba identifier

Parameters:

c - the character to check

Returns:

true if the character can be part of a makumba identifier, false otherwise

checkLabelSetOrNullable

public Object checkLabelSetOrNullable(String from,
                                      String referenceSequence)

Checks if an id is nullable, and if so, return the path to the null pointer

Parameters:

referenceSequence - a sequence like field1.field2.field3

Returns:

The path to the null pointer (if the object is nullable), null otherwise

getParameterSyntax

public abstract String getParameterSyntax()

return the first character(s) in a parameter designator

main

public static void main(String[] args)