Package org.apache.cayenne.map

Class QueryDescriptorLoader

java.lang.Object

org.apache.cayenne.map.QueryDescriptorLoader

public class QueryDescriptorLoader
extends Object

A builder that constructs Cayenne queries from abstract configuration information defined in cayenne-data-map*.dtd. This abstract builder supports values declared in the DTD, allowing subclasses to define their own Query creation logic.

Since:

4.0

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<String,String>	adapterSql
protected DataMap	dataMap
protected String	ejbql
protected String	name
protected List<Ordering>	orderings
protected HashMap<String,Integer>	prefetchesMap
protected Map<String,String>	properties
protected Expression	qualifier
protected String	queryType
protected String	resultEntity
protected String	rootName
protected String	rootType
protected String	sql

Constructor Summary

Constructors

Constructor	Description
QueryDescriptorLoader()

Method Summary

Modifier and Type	Method	Description
void	addOrdering(String path, String descending, String ignoreCase)
void	addPrefetch(String path, int semantics)
void	addProperty(String name, String value)
void	addSql(String sql, String adapterClass)	Adds raw sql.
QueryDescriptor	buildQueryDescriptor()	Builds a Query object based on internal configuration information.
protected Object	getRoot()	Determines query root based on configuration info, falls back to a DataMap root if the data is invalid.
void	setEjbql(String ejbql)
void	setLegacyFactory(String factory)	It's better be handled by project upgrade handler and actually it is.
void	setName(String name)
void	setQualifier(String qualifier)
void	setQueryType(String queryType)
void	setResultEntity(String resultEntity)
void	setRoot(DataMap dataMap, String rootType, String rootName)	Sets the information pertaining to the root of the query.

Methods inherited from class java.lang.Object

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

Field Details

name

protected String name

queryType

protected String queryType

sql

protected String sql

ejbql

protected String ejbql

qualifier

protected Expression qualifier

dataMap

protected DataMap dataMap

rootType

protected String rootType

rootName

protected String rootName

resultEntity

protected String resultEntity

orderings

protected List<Ordering> orderings

prefetchesMap

protected HashMap<String,Integer> prefetchesMap

adapterSql

protected Map<String,String> adapterSql

properties

protected Map<String,String> properties

Constructor Details

QueryDescriptorLoader

public QueryDescriptorLoader()

Method Details

buildQueryDescriptor

public QueryDescriptor buildQueryDescriptor()

Builds a Query object based on internal configuration information.

setName

public void setName(String name)

setLegacyFactory

public void setLegacyFactory(String factory)

It's better be handled by project upgrade handler and actually it is. But upgrade logic is faulty when project is several versions away and can't be changed without complete upgrade system rewrite

Parameters:

factory - old style query factory class

setQueryType

public void setQueryType(String queryType)

getRoot

protected Object getRoot()

Determines query root based on configuration info, falls back to a DataMap root if the data is invalid.

Throws:

CayenneRuntimeException - if a valid root can't be established.

setResultEntity

public void setResultEntity(String resultEntity)

setRoot

public void setRoot(DataMap dataMap,
 String rootType,
 String rootName)

Sets the information pertaining to the root of the query.

setEjbql

public void setEjbql(String ejbql)

addSql

public void addSql(String sql,
 String adapterClass)

Adds raw sql. If adapterClass parameter is not null, sets the SQL string to be adapter-specific. Otherwise it is used as a default SQL string.

setQualifier

public void setQualifier(String qualifier)

addProperty

public void addProperty(String name,
 String value)

addOrdering

public void addOrdering(String path,
 String descending,
 String ignoreCase)

addPrefetch

public void addPrefetch(String path,
 int semantics)