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 and Description
protected Map<String,String>	adapterSql
protected DataMap	dataMap
protected String	ejbql
protected String	name
protected List<Ordering>	orderings
protected List<String>	prefetches
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 and Description
QueryDescriptorLoader()

Method Summary

Modifier and Type	Method and Description
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.

Methods inherited from class java.lang.Object

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

Field Detail

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

prefetches

protected List<String> prefetches

adapterSql

protected Map<String,String> adapterSql

properties

protected Map<String,String> properties

Constructor Detail

QueryDescriptorLoader

public QueryDescriptorLoader()

Method Detail

buildQueryDescriptor

public QueryDescriptor buildQueryDescriptor()

Builds a Query object based on internal configuration information.

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.