Package org.eclipse.persistence.internal.queries

Examples of org.eclipse.persistence.internal.queries.ReportItem

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     */
    public void initialize(ReportQuery query) throws QueryException {
        int size= getReportItems().size();
        List mappings = new ArrayList();
        for (int index = 0; index < size; index++) {
            ReportItem item = (ReportItem)reportItems.get(index);
            item.initialize(query);
            mappings.add(item.getMapping());
        }
        setConstructorMappings(mappings);
       
        int numberOfItems = getReportItems().size();
        // Arguments may be initialized depending on how the query was constructed, so types may be undefined though.
        if (getConstructorArgTypes() == null) {
            setConstructorArgTypes(new Class[numberOfItems]);
        }
        Class[] constructorArgTypes = getConstructorArgTypes();
        for (int index = 0; index < numberOfItems; index++) {
            if (constructorArgTypes[index] == null) {
                ReportItem argumentItem = (ReportItem)getReportItems().get(index);
                if (mappings.get(index) != null) {
                    DatabaseMapping mapping = (DatabaseMapping)constructorMappings.get(index);
                    if (argumentItem.getAttributeExpression() != null && argumentItem.getAttributeExpression().isMapEntryExpression()){
                        if (((MapEntryExpression)argumentItem.getAttributeExpression()).shouldReturnMapEntry()){
                            constructorArgTypes[index] = Map.Entry.class;
                        } else {
                            constructorArgTypes[index] = (Class)((CollectionMapping)mapping).getContainerPolicy().getKeyType();
                        }
                    } else {
                        constructorArgTypes[index] = mapping.getAttributeClassification();
                    }
                } else if (argumentItem.getResultType() != null) {
                    constructorArgTypes[index] = argumentItem.getResultType();
                } else if (argumentItem.getDescriptor() != null) {
                    constructorArgTypes[index] = argumentItem.getDescriptor().getJavaClass();
                } else if (argumentItem.getAttributeExpression() != null && argumentItem.getAttributeExpression().isConstantExpression()){
                    constructorArgTypes[index] = ((ConstantExpression)argumentItem.getAttributeExpression()).getValue().getClass();
                } else {
                    // Use Object.class by default.
                    constructorArgTypes[index] = ClassConstants.OBJECT;
                }
            }
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    /**
     * Method to add an expression to be used to return the parameter that is then passed into the constructor method.
     * Similar to ReportQuery's addAttribute method, but name is not needed.
     */
    public void addAttribute(Expression attributeExpression) {
        ReportItem item = new ReportItem(getName()+getReportItems().size(), attributeExpression);
        getReportItems().add(item);
    }
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    /**
     * Add the attribute with joining.
     */
    public void addAttribute(String attributeName, Expression attributeExpression, List joinedExpressions) {
        ReportItem item = new ReportItem(attributeName, attributeExpression);
        item.getJoinedAttributeManager().setJoinedAttributeExpressions_(joinedExpressions);
        getReportItems().add(item);
    }
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     */
    public void initialize(ReportQuery query) throws QueryException {
        int size= getReportItems().size();
        List mappings = new ArrayList();
        for (int index = 0; index < size; index++) {
            ReportItem item = (ReportItem)reportItems.get(index);
            item.initialize(query);
            mappings.add(item.getMapping());
        }
        setConstructorMappings(mappings);
       
        int numberOfItems = getReportItems().size();
        // Arguments may be initialized depending on how the query was constructed, so types may be undefined though.
        if (getConstructorArgTypes() == null) {
            setConstructorArgTypes(new Class[numberOfItems]);
        }
        Class[] constructorArgTypes = getConstructorArgTypes();
        for (int index = 0; index < numberOfItems; index++) {
            if (constructorArgTypes[index] == null) {
                ReportItem argumentItem = (ReportItem)getReportItems().get(index);
                if (mappings.get(index) != null) {
                    DatabaseMapping mapping = (DatabaseMapping)constructorMappings.get(index);
                    if (argumentItem.getAttributeExpression() != null && argumentItem.getAttributeExpression().isMapEntryExpression()){
                        if (((MapEntryExpression)argumentItem.getAttributeExpression()).shouldReturnMapEntry()){
                            constructorArgTypes[index] = Map.Entry.class;
                        } else {
                            constructorArgTypes[index] = (Class)((CollectionMapping)mapping).getContainerPolicy().getKeyType();
                        }
                    } else {
                        constructorArgTypes[index] = mapping.getAttributeClassification();
                    }
                } else if (argumentItem.getResultType() != null) {
                    constructorArgTypes[index] = argumentItem.getResultType();
                } else if (argumentItem.getDescriptor() != null) {
                    constructorArgTypes[index] = argumentItem.getDescriptor().getJavaClass();
                } else if (argumentItem.getAttributeExpression() != null && argumentItem.getAttributeExpression().isConstantExpression()){
                    constructorArgTypes[index] = ((ConstantExpression)argumentItem.getAttributeExpression()).getValue().getClass();
                } else {
                    // Use Object.class by default.
                    constructorArgTypes[index] = ClassConstants.OBJECT;
                }
            }
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        item.setConstructor(constructor);
        for(Selection selection : this.getCompoundSelectionItems()){
            if (((SelectionImpl)selection).isCompoundSelection()){
                item.addItem(((ConstructorSelectionImpl)selection).translate());
            }else{
                ReportItem reportItem = new ReportItem(item.getName()+item.getReportItems().size(),
                        ((SelectionImpl)selection).getCurrentNode());
                //bug: 297385 - set type here because the selection already knows the type
                reportItem.setResultType(selection.getJavaType());
                item.addItem(reportItem);
            }
        }
        return item;
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        // select clause expressions as non fetch join attributes to the
        // ReportQuery representing the subquery. This make sure the FK joins
        // get generated. 
        List items = reportQuery.getItems();
        for (Iterator i = items.iterator(); i.hasNext();) {
            ReportItem item = (ReportItem)i.next();
            Expression expr = item.getAttributeExpression();
            reportQuery.addNonFetchJoinedAttribute(expr);
        }
        reportQuery.clearItems();
        Expression one = new ConstantExpression(new Integer(1), new ExpressionBuilder());
        reportQuery.addItem("one", one);
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     */
    public List<JAXBElement> createShellJAXBElementList(List<ReportItem> reportItems, Object record) {
        List<JAXBElement> jaxbElements = new ArrayList<JAXBElement>(reportItems.size());
        if ((reportItems != null) && (reportItems.size() > 0)) {
            for (int index = 0; index < reportItems.size(); index++) {
                ReportItem reportItem = reportItems.get(index);
                Object reportItemValue = record;
                if (record instanceof Object[]) {
                    reportItemValue = ((Object[]) record)[index];
                }
                Class reportItemValueType = null;
                if (reportItemValue != null) {
                    reportItemValueType = reportItemValue.getClass();
                    if (reportItemValueType == null) {
                        // try other paths to determine the type of the report item
                        DatabaseMapping dbMapping = reportItem.getMapping();
                        if (dbMapping != null) {
                            reportItemValueType = dbMapping.getAttributeClassification();
                        } else {
                            ClassDescriptor desc = reportItem.getDescriptor();
                            if (desc != null) {
                                reportItemValueType = desc.getJavaClass();
                            }
                        }
                    }

                    // so, we couldn't determine the type of the report item, stop here...
                    if (reportItemValueType == null) {
                        return null;
                    }

                    JAXBElement element = new JAXBElement(new QName(reportItem.getName()), reportItemValueType, reportItemValue);
                    jaxbElements.add(reportItem.getResultIndex(), element);
                }
            }
        }
        return jaxbElements;
    }
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                // Check for sub-select, need to replace sub-selects on object to select its id.
                ReportQuery query = ((SubSelectExpression)right).getSubQuery();
                if (query.getItems().size() != 1) {
                    throw QueryException.invalidExpression(this);                   
                }
                ReportItem item = query.getItems().get(0);
                item.setAttributeExpression(item.getAttributeExpression().getField(targetFields.get(0)));
            } else {
                throw QueryException.invalidExpression(this);
            }
            // Still need to normalize the children.
            for (int index = 0; index < this.children.size(); index++) {
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        // select clause expressions as non fetch join attributes to the
        // ReportQuery representing the subquery. This make sure the FK joins
        // get generated. 
        List items = reportQuery.getItems();
        for (Iterator i = items.iterator(); i.hasNext();) {
            ReportItem item = (ReportItem)i.next();
            Expression expr = item.getAttributeExpression();
            reportQuery.addNonFetchJoinedAttribute(expr);
        }
        reportQuery.clearItems();
        Expression one = new ConstantExpression(Integer.valueOf(1), new ExpressionBuilder());
        reportQuery.addItem("one", one);
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    /**
     * Method to add an expression to be used to return the parameter that is then passed into the constructor method.
     * Similar to ReportQuery's addAttribute method, but name is not needed.
     */
    public void addAttribute(Expression attributeExpression) {
        ReportItem item = new ReportItem(getName()+getReportItems().size(), attributeExpression);
        getReportItems().add(item);
    }
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Related Classes of org.eclipse.persistence.internal.queries.ReportItem

  • org.eclipse.persistence.internal.expressions.FunctionExpression
  • org.eclipse.persistence.internal.jpa.parsing.ExistsNode
  • org.eclipse.persistence.internal.jpa.querydef.ConstructorSelectionImpl
  • org.eclipse.persistence.jpa.rs.features.FeatureResponseBuilderImpl
  • org.eclipse.persistence.jpa.rs.resources.common.AbstractResource
  • org.eclipse.persistence.queries.ConstructorReportItem
  • org.eclipse.persistence.sessions.factories.ProjectClassGenerator
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