Package org.datanucleus.api.jdo.query

Class AbstractJDOQLTypedQuery<T>

java.lang.Object

org.datanucleus.api.jdo.query.AbstractJDOQLTypedQuery<T>

Direct Known Subclasses:

JDOQLTypedQueryImpl, JDOQLTypedSubqueryImpl

public abstract class AbstractJDOQLTypedQuery<T>
extends Object

Abstract base for a typesafe query. Extended by JDOTypesafeQuery and JDOTypesafeSubquery.

Field Summary

Fields

Modifier and Type	Field	Description
protected String	candidateAlias	Alias for the candidate of this query.
protected Class	candidateCls	Candidate class for the query.
protected ExpressionImpl	candidates	Candidate expression for the query
protected org.datanucleus.store.query.compiler.QueryCompilation	compilation	The generic query compilation that this equates to (cached).
protected org.datanucleus.ExecutionContext	ec
protected BooleanExpressionImpl	filter	Filter expression.
protected List<ExpressionImpl>	grouping	Grouping expression(s).
protected ExpressionImpl	having	Having expression.
protected List<OrderExpressionImpl>	ordering	Ordering expression(s).
protected AbstractJDOQLTypedQuery	parentQuery
protected javax.jdo.PersistenceManager	pm
protected String	queryString	The single-string query that this equates to (cached).
protected ExpressionImpl	rangeLowerExpr	Range : lower limit expression.
protected ExpressionImpl	rangeUpperExpr	Range : upper limit expression.
protected List<ExpressionImpl>	result	Result expression(s).
protected Class	resultClass
protected Boolean	resultDistinct	Whether the results are distinct (no dups).
protected boolean	subclasses	Whether to include subclasses of the candidate in the query.
protected org.datanucleus.store.query.Query.QueryType	type
protected boolean	unique	Whether the result is unique (single row).
protected List<ExpressionImpl>	updateExprs
protected List<ExpressionImpl>	updateVals

Constructor Summary

Constructors

Constructor	Description
AbstractJDOQLTypedQuery(javax.jdo.PersistenceManager pm, Class<T> cls, String alias, AbstractJDOQLTypedQuery parentQuery)
AbstractJDOQLTypedQuery(javax.jdo.PersistenceManager pm, Class<T> cls, ExpressionImpl<T> candidates, String alias, AbstractJDOQLTypedQuery parentQuery)

Method Summary

Modifier and Type	Method	Description
protected org.datanucleus.store.query.compiler.QueryCompilation	compile(org.datanucleus.metadata.MetaDataManager mmgr, org.datanucleus.ClassLoaderResolver clr)	Method to compile the query as it is currently defined.
protected void	discardCompiled()	Called when something is set on the query making any compilation invalid.
org.datanucleus.store.query.compiler.QueryCompilation	getCompilation()	Accessor for the generic compilation that this criteria query equates to.
String	getJDOQLForExpression(org.datanucleus.store.query.expression.Expression expr)
String	toString()	Method to return the single-string form of this JDOQL query.

Methods inherited from class java.lang.Object

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

Field Detail

parentQuery

protected AbstractJDOQLTypedQuery parentQuery

type

protected org.datanucleus.store.query.Query.QueryType type

candidateCls

protected Class candidateCls

Candidate class for the query.

candidates

protected ExpressionImpl candidates

Candidate expression for the query

subclasses

protected boolean subclasses

Whether to include subclasses of the candidate in the query.

candidateAlias

protected String candidateAlias

Alias for the candidate of this query.

updateExprs

protected List<ExpressionImpl> updateExprs

updateVals

protected List<ExpressionImpl> updateVals

result

protected List<ExpressionImpl> result

Result expression(s).

resultDistinct

protected Boolean resultDistinct

Whether the results are distinct (no dups).

unique

protected boolean unique

Whether the result is unique (single row).

resultClass

protected Class resultClass

filter

protected BooleanExpressionImpl filter

Filter expression.

grouping

protected List<ExpressionImpl> grouping

Grouping expression(s).

having

protected ExpressionImpl having

Having expression.

ordering

protected List<OrderExpressionImpl> ordering

Ordering expression(s).

rangeLowerExpr

protected ExpressionImpl rangeLowerExpr

Range : lower limit expression.

rangeUpperExpr

protected ExpressionImpl rangeUpperExpr

Range : upper limit expression.

pm

protected javax.jdo.PersistenceManager pm

ec

protected org.datanucleus.ExecutionContext ec

compilation

protected org.datanucleus.store.query.compiler.QueryCompilation compilation

The generic query compilation that this equates to (cached).

queryString

protected String queryString

The single-string query that this equates to (cached).

Constructor Detail

AbstractJDOQLTypedQuery

public AbstractJDOQLTypedQuery(javax.jdo.PersistenceManager pm,
                               Class<T> cls,
                               String alias,
                               AbstractJDOQLTypedQuery parentQuery)

AbstractJDOQLTypedQuery

public AbstractJDOQLTypedQuery(javax.jdo.PersistenceManager pm,
                               Class<T> cls,
                               ExpressionImpl<T> candidates,
                               String alias,
                               AbstractJDOQLTypedQuery parentQuery)

Method Detail

discardCompiled

protected void discardCompiled()

Called when something is set on the query making any compilation invalid.

compile

protected org.datanucleus.store.query.compiler.QueryCompilation compile(org.datanucleus.metadata.MetaDataManager mmgr,
                                                                        org.datanucleus.ClassLoaderResolver clr)

Method to compile the query as it is currently defined.

Parameters:

mmgr - Metadata manager

clr - ClassLoader resolver

Returns:

The generic compilation

getCompilation

public org.datanucleus.store.query.compiler.QueryCompilation getCompilation()

Accessor for the generic compilation that this criteria query equates to.

Returns:

The generic compilation

toString

public String toString()

Method to return the single-string form of this JDOQL query.

Overrides:

toString in class Object

Returns:

Single-string form of the query

getJDOQLForExpression

public String getJDOQLForExpression(org.datanucleus.store.query.expression.Expression expr)