org.apache.openjpa.jdbc.meta

Class QueryResultMapping.PCResult

java.lang.Object

org.apache.openjpa.jdbc.meta.QueryResultMapping.PCResult

Enclosing class:

QueryResultMapping

public class QueryResultMapping.PCResult
extends Object

A persistence-capable result.

Field Summary

Fields

Modifier and Type	Field and Description
static String	DISCRIMINATOR Path token to represent a discriminator.

Method Summary

Methods

Modifier and Type	Method and Description
void	addMapping(String path, Object id) Map the given path to the given result id.
Class<?>	getCandidateType() The result candidate class.
ClassMapping	getCandidateTypeMapping() Candidate mapping.
BitSet	getExcludes(List<MetaDataContext> path) Return the field indexes to exclude when loading data for the given path.
Object	getMapping(String path) Return the mapping id for the given path supplied with addMapping(java.lang.String, java.lang.Object), or null if none.
String[]	getMappingPaths() Return the raw mapping paths supplied with addMapping(java.lang.String, java.lang.Object), or empty array if none.
boolean	hasEager(List<MetaDataContext> path, FieldMapping field) Return true if the mapped result contains eager data for the given field at the given path.
Object	map(List<MetaDataContext> path, Object id, Joins joins) Map the given request onto a result id.

Methods inherited from class java.lang.Object

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

Field Detail

DISCRIMINATOR

public static final String DISCRIMINATOR

Path token to represent a discriminator.

See Also:

Constant Field Values

Method Detail

getCandidateType

public Class<?> getCandidateType()

The result candidate class.

getCandidateTypeMapping

public ClassMapping getCandidateTypeMapping()

Candidate mapping.

getMappingPaths

public String[] getMappingPaths()

Return the raw mapping paths supplied with addMapping(java.lang.String, java.lang.Object), or empty array if none.

getMapping

public Object getMapping(String path)

Return the mapping id for the given path supplied with addMapping(java.lang.String, java.lang.Object), or null if none.

addMapping

public void addMapping(String path,
              Object id)

Map the given path to the given result id.

map

public Object map(List<MetaDataContext> path,
         Object id,
         Joins joins)

Map the given request onto a result id.

Parameters:

path - stack of data requests (see Result.startDataRequest(java.lang.Object))

id - requested id or column (see Result APIs)

joins - requested joins, or null

Returns:

the id or column to fetch from the result (typically a column name)

hasEager

public boolean hasEager(List<MetaDataContext> path,
               FieldMapping field)

Return true if the mapped result contains eager data for the given field at the given path.

Parameters:

path - stack of data requests (see Result.startDataRequest(java.lang.Object))

getExcludes

public BitSet getExcludes(List<MetaDataContext> path)

Return the field indexes to exclude when loading data for the given path.