org.datanucleus.store.neodatis.query

Class QueryToCriteriaMapper

java.lang.Object

org.datanucleus.query.evaluator.AbstractExpressionEvaluator

org.datanucleus.store.neodatis.query.QueryToCriteriaMapper

All Implemented Interfaces:

org.datanucleus.query.expression.ExpressionEvaluator

public class QueryToCriteriaMapper
extends org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Class which maps a compiled query to a NeoDatis Criteria query. Utilises the filter and ordering components of the java query and adds them to the underlying Criteria query. All other components are not handled here and instead processed by the in-memory evaluator.

Constructor Summary

Constructors

Constructor and Description
QueryToCriteriaMapper(org.neodatis.odb.impl.core.query.criteria.CriteriaQuery query, org.datanucleus.query.compiler.QueryCompilation compilation, Map parameters) Constructor.

Method Summary

Modifier and Type	Method and Description
void	compile()
protected Object	processAndExpression(org.datanucleus.query.expression.Expression expr) Method to process the supplied AND expression.
protected Object	processEqExpression(org.datanucleus.query.expression.Expression expr) Method to process the supplied EQ expression.
protected Object	processGteqExpression(org.datanucleus.query.expression.Expression expr) Method to process the supplied GTEQ expression.
protected Object	processGtExpression(org.datanucleus.query.expression.Expression expr) Method to process the supplied GT expression.
protected Object	processInvokeExpression(org.datanucleus.query.expression.InvokeExpression invokeExpr) Method to process the supplied invoke expression.
protected Object	processLiteral(org.datanucleus.query.expression.Literal expr) Method to process the supplied invoke expression.
protected Object	processLteqExpression(org.datanucleus.query.expression.Expression expr) Method to process the supplied LTEQ expression.
protected Object	processLtExpression(org.datanucleus.query.expression.Expression expr) Method to process the supplied LT expression.
protected Object	processNoteqExpression(org.datanucleus.query.expression.Expression expr) Method to process the supplied NOTEQ expression.
protected Object	processOrExpression(org.datanucleus.query.expression.Expression expr) Method to process the supplied OR expression.
protected Object	processParameterExpression(org.datanucleus.query.expression.ParameterExpression expr) Method to process the supplied parameter expression.
protected Object	processPrimaryExpression(org.datanucleus.query.expression.PrimaryExpression expr) Method to process the supplied primary expression.

Methods inherited from class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

compileAdditiveMultiplicativeExpression, compileOrAndExpression, compilePrimaryExpression, compileRelationalExpression, compileUnaryExpression, evaluate, processAddExpression, processCaseExpression, processCastExpression, processComExpression, processCreatorExpression, processDistinctExpression, processDivExpression, processInExpression, processIsExpression, processIsnotExpression, processLikeExpression, processModExpression, processMulExpression, processNegExpression, processNotExpression, processNotInExpression, processSubExpression, processSubqueryExpression, processVariableExpression

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryToCriteriaMapper

public QueryToCriteriaMapper(org.neodatis.odb.impl.core.query.criteria.CriteriaQuery query,
                             org.datanucleus.query.compiler.QueryCompilation compilation,
                             Map parameters)

Constructor.

Parameters:

query - Criteria query to be updated with the filter/ordering

compilation - Generic query compilation

parameters - Parameters needed

Method Detail

compile

public void compile()

processOrExpression

protected Object processOrExpression(org.datanucleus.query.expression.Expression expr)

Method to process the supplied OR expression.

Overrides:

processOrExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processAndExpression

protected Object processAndExpression(org.datanucleus.query.expression.Expression expr)

Method to process the supplied AND expression.

Overrides:

processAndExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processEqExpression

protected Object processEqExpression(org.datanucleus.query.expression.Expression expr)

Method to process the supplied EQ expression.

Overrides:

processEqExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processNoteqExpression

protected Object processNoteqExpression(org.datanucleus.query.expression.Expression expr)

Method to process the supplied NOTEQ expression.

Overrides:

processNoteqExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processGtExpression

protected Object processGtExpression(org.datanucleus.query.expression.Expression expr)

Method to process the supplied GT expression.

Overrides:

processGtExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processLtExpression

protected Object processLtExpression(org.datanucleus.query.expression.Expression expr)

Method to process the supplied LT expression.

Overrides:

processLtExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processGteqExpression

protected Object processGteqExpression(org.datanucleus.query.expression.Expression expr)

Method to process the supplied GTEQ expression.

Overrides:

processGteqExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processLteqExpression

protected Object processLteqExpression(org.datanucleus.query.expression.Expression expr)

Method to process the supplied LTEQ expression.

Overrides:

processLteqExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processPrimaryExpression

protected Object processPrimaryExpression(org.datanucleus.query.expression.PrimaryExpression expr)

Method to process the supplied primary expression.

Overrides:

processPrimaryExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processParameterExpression

protected Object processParameterExpression(org.datanucleus.query.expression.ParameterExpression expr)

Method to process the supplied parameter expression.

Overrides:

processParameterExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result

processInvokeExpression

protected Object processInvokeExpression(org.datanucleus.query.expression.InvokeExpression invokeExpr)

Method to process the supplied invoke expression. To be implemented by subclasses.

Overrides:

processInvokeExpression in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

invokeExpr - The invocation expression

Returns:

The result

processLiteral

protected Object processLiteral(org.datanucleus.query.expression.Literal expr)

Method to process the supplied invoke expression. To be implemented by subclasses.

Overrides:

processLiteral in class org.datanucleus.query.evaluator.AbstractExpressionEvaluator

Parameters:

expr - The expression

Returns:

The result