Package org.eclipse.persistence.internal.expressions

Examples of org.eclipse.persistence.internal.expressions.ConstantExpression

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            return myExpression;
        }

        //Either I have an alias type, or I'm an IN declaration
        if (classConstant != null){
            myExpression = new ConstantExpression(classConstant, generationContext.getBaseExpression());
        } else if (generationContext.getParseTreeContext().isRangeVariable(name)) {
            myExpression = generateBaseBuilderExpression(generationContext);
        } else {
            myExpression = generateExpressionForAlias(generationContext);
        }
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                    }
                }
            }
        } else {
            if (expression==argument){
                foreignKeyJoin = (new ConstantExpression(0, base)).equal(new ConstantExpression(0, base));
            }else{
                int size = this.mechanism.sourceKeyFields.size();
                Expression relTable = base.getTable(this.mechanism.getRelationTable());
                for(int i=0; i < size; i++) {
                    Expression source = base.getField(this.mechanism.sourceKeyFields.get(i));
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                    }
                }
            }
        } else {
            if (expression==argument){
                foreignKeyJoin = (new ConstantExpression(0, base)).equal(new ConstantExpression(0, base));
            }else{
                int size = this.mechanism.sourceKeyFields.size();
                Expression relTable = base.getTable(this.mechanism.getRelationTable());
                for(int i=0; i < size; i++) {
                    Expression source = base.getField(this.mechanism.sourceKeyFields.get(i));
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            }
            this.subQuery.setExpressionBuilder(((InternalSelection)selection.getCompoundSelectionItems().get(0)).getCurrentNode().getBuilder());
        } else {
            TypeImpl type = ((MetamodelImpl)this.metamodel).getType(selection.getJavaType());
            if (type != null && type.getPersistenceType().equals(PersistenceType.ENTITY)) {
                this.subQuery.addAttribute("", new ConstantExpression(1, ((InternalSelection)selection).getCurrentNode().getBuilder()));
                this.subQuery.addNonFetchJoinedAttribute(((InternalSelection)selection).getCurrentNode());
            } else {
                String itemName = selection.getAlias();
                if (itemName == null){
                    itemName = ((InternalSelection) selection).getCurrentNode().getName();
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                // query
                // type
                if (this.selection == null) {
                    this.selection = root;
                    this.subQuery.getItems().clear();
                    this.subQuery.addAttribute("", new ConstantExpression(1, root.getCurrentNode().getBuilder()));
                    this.queryResult = ResultType.ENTITY;
                }
            }
            this.subQuery.setReferenceClass(root.getJavaType());
            this.subQuery.setExpressionBuilder(root.getCurrentNode().getBuilder());
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     * @param y
     *            expression
     * @return sum
     */
    public <N extends Number> Expression<N> sum(N x, Expression<? extends N> y){
        return new FunctionExpressionImpl(this.metamodel, (Class<N>)BasicTypeHelperImpl.getInstance().extendedBinaryNumericPromotion(x.getClass(), y.getJavaType()), ExpressionMath.add(new ConstantExpression(x, ((InternalSelection)y).getCurrentNode()),((InternalSelection)y).getCurrentNode()), buildList(literal(x),y), "sum");
    }
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     * @param y
     *            expression
     * @return product
     */
    public <N extends Number> Expression<N> prod(N x, Expression<? extends N> y){
        return new FunctionExpressionImpl(this.metamodel, (Class<N>)BasicTypeHelperImpl.getInstance().extendedBinaryNumericPromotion(x.getClass(), y.getJavaType()), ExpressionMath.multiply(new ConstantExpression(x, ((InternalSelection)y).getCurrentNode()),((InternalSelection)y).getCurrentNode()), buildList(literal(x),y), "prod");
    }
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     * @param y
     *            expression
     * @return quotient
     */
    public Expression<Number> quot(Number x, Expression<? extends Number> y){
        return new FunctionExpressionImpl(this.metamodel, ClassConstants.NUMBER, ExpressionMath.divide(new ConstantExpression(x, ((InternalSelection)y).getCurrentNode()),((InternalSelection)y).getCurrentNode()), buildList(literal(x),y), "quot");
    }
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     *
     * @param value
     * @return expression literal
     */
    public <T> Expression<T> literal(T value){
        return new ExpressionImpl<T>(metamodel, (Class<T>) (value == null? null: value.getClass()), new ConstantExpression(value, new ExpressionBuilder()), value);
    }
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     *
     * @param resultClass  type of the null literal
     * @return null expression literal
     */
    public <T> Expression<T> nullLiteral(Class<T> resultClass){
        return new ExpressionImpl<T>(metamodel, resultClass, new ConstantExpression(null, new ExpressionBuilder()), null);
    }
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Related Classes of org.eclipse.persistence.internal.expressions.ConstantExpression

  • org.eclipse.persistence.internal.jpa.jpql.ExpressionBuilderVisitor
  • org.eclipse.persistence.internal.jpa.jpql.ExpressionBuilderVisitor$ComparisonExpressionVisitor
  • org.eclipse.persistence.internal.jpa.jpql.ExpressionBuilderVisitor$InExpressionBuilder
  • org.eclipse.persistence.internal.jpa.jpql.ExpressionBuilderVisitor$InExpressionBuilder$InItemExpressionVisitor
  • org.eclipse.persistence.internal.jpa.jpql.ExpressionBuilderVisitor$InExpressionExpressionBuilder
  • org.eclipse.persistence.internal.jpa.jpql.ExpressionBuilderVisitor$PathResolver
  • org.eclipse.persistence.internal.jpa.parsing.ExistsNode
  • org.eclipse.persistence.internal.jpa.parsing.UnaryMinus
  • org.eclipse.persistence.internal.jpa.parsing.VariableNode
  • org.eclipse.persistence.internal.jpa.querydef.CommonAbstractCriteriaImpl
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