Examples with Expression org.datanucleus.query.expression.Expression used on opensource projects

Example 11 with Expression

use of org.datanucleus.query.expression.Expression in project datanucleus-core by datanucleus.

the class TemporalDayMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    if (invokedValue == null && expr.getArguments() != null) {
        // Specified as static function, so use argument of InvokeExpression
        List<Expression> argExprs = expr.getArguments();
        if (argExprs.size() > 1) {
            throw new NucleusUserException("Incorrect number of arguments to DAY");
        }
        Expression argExpr = argExprs.get(0);
        invokedValue = eval.getValueForExpression(argExpr);
    }
    if (invokedValue == null) {
        return Boolean.FALSE;
    }
    if (!(invokedValue instanceof Date)) {
        throw new NucleusException(Localiser.msg("021011", expr.getOperation(), invokedValue.getClass().getName()));
    }
    if (invokedValue instanceof Date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime((Date) invokedValue);
        return Integer.valueOf(cal.get(Calendar.DAY_OF_MONTH));
    } else if (invokedValue instanceof Calendar) {
        return Integer.valueOf(((Calendar) invokedValue).get(Calendar.DAY_OF_MONTH));
    } else if (invokedValue instanceof LocalDate) {
        return ((LocalDate) invokedValue).getDayOfMonth();
    } else if (invokedValue instanceof LocalDateTime) {
        return ((LocalDateTime) invokedValue).getDayOfMonth();
    } else {
        throw new NucleusUserException("We do not currently support DAY() with argument of type " + invokedValue.getClass().getName());
    }
}

Example 12 with Expression

use of org.datanucleus.query.expression.Expression in project datanucleus-core by datanucleus.

the class OptionalOrElseMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    String method = expr.getOperation();
    if (invokedValue == null) {
        return null;
    }
    if (!(invokedValue instanceof Optional)) {
        throw new NucleusException(Localiser.msg("021011", method, invokedValue.getClass().getName()));
    }
    List<Expression> args = expr.getArguments();
    if (args == null || args.isEmpty() || args.size() != 1) {
        throw new NucleusException("orElse requires one argument");
    }
    Expression argExpr = args.get(0);
    Object argument = null;
    if (argExpr instanceof Literal) {
        argument = ((Literal) argExpr).getLiteral();
    } else if (argExpr instanceof PrimaryExpression) {
        PrimaryExpression primExpr = (PrimaryExpression) argExpr;
        argument = eval.getValueForPrimaryExpression(primExpr);
    } else if (argExpr instanceof ParameterExpression) {
        ParameterExpression paramExpr = (ParameterExpression) argExpr;
        argument = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
    } else if (argExpr instanceof InvokeExpression) {
        argument = eval.getValueForInvokeExpression((InvokeExpression) argExpr);
    } else if (argExpr instanceof DyadicExpression) {
        argument = ((DyadicExpression) argExpr).evaluate(eval);
    } else {
        throw new NucleusException(method + "(param1) where param is instanceof " + argExpr.getClass().getName() + " not supported");
    }
    return ((Optional) invokedValue).orElse(argument);
}

Example 13 with Expression

use of org.datanucleus.query.expression.Expression in project datanucleus-core by datanucleus.

the class TemporalMonthJavaMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    if (invokedValue == null && expr.getArguments() != null) {
        // Specified as static function, so use argument of InvokeExpression
        List<Expression> argExprs = expr.getArguments();
        if (argExprs.size() > 1) {
            throw new NucleusUserException("Incorrect number of arguments to MONTH_JAVA");
        }
        Expression argExpr = argExprs.get(0);
        invokedValue = eval.getValueForExpression(argExpr);
    }
    if (invokedValue == null) {
        return Boolean.FALSE;
    }
    if (!(invokedValue instanceof Date)) {
        throw new NucleusException(Localiser.msg("021011", expr.getOperation(), invokedValue.getClass().getName()));
    }
    if (invokedValue instanceof Date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime((Date) invokedValue);
        return Integer.valueOf(cal.get(Calendar.MONTH));
    } else if (invokedValue instanceof Calendar) {
        return Integer.valueOf(((Calendar) invokedValue).get(Calendar.MONTH));
    } else if (invokedValue instanceof LocalDate) {
        return ((LocalDate) invokedValue).getMonthValue() - 1;
    } else if (invokedValue instanceof LocalDateTime) {
        return ((LocalDateTime) invokedValue).getMonthValue() - 1;
    } else {
        throw new NucleusUserException("We do not currently support MONTH_JAVA() with argument of type " + invokedValue.getClass().getName());
    }
}

Example 14 with Expression

use of org.datanucleus.query.expression.Expression in project datanucleus-core by datanucleus.

the class TemporalMonthMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    if (invokedValue == null && expr.getArguments() != null) {
        // Specified as static function, so use argument of InvokeExpression
        List<Expression> argExprs = expr.getArguments();
        if (argExprs.size() > 1) {
            throw new NucleusUserException("Incorrect number of arguments to MONTH");
        }
        Expression argExpr = argExprs.get(0);
        invokedValue = eval.getValueForExpression(argExpr);
    }
    if (invokedValue == null) {
        return Boolean.FALSE;
    }
    if (!(invokedValue instanceof Date)) {
        throw new NucleusException(Localiser.msg("021011", expr.getOperation(), invokedValue.getClass().getName()));
    }
    if (invokedValue instanceof Date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime((Date) invokedValue);
        return Integer.valueOf(cal.get(Calendar.MONTH)) + 1;
    } else if (invokedValue instanceof Calendar) {
        return Integer.valueOf(((Calendar) invokedValue).get(Calendar.MONTH)) + 1;
    } else if (invokedValue instanceof LocalDate) {
        return ((LocalDate) invokedValue).getMonthValue();
    } else if (invokedValue instanceof LocalDateTime) {
        return ((LocalDateTime) invokedValue).getMonthValue();
    } else {
        throw new NucleusUserException("We do not currently support MONTH() with argument of type " + invokedValue.getClass().getName());
    }
}

Example 15 with Expression

use of org.datanucleus.query.expression.Expression in project datanucleus-core by datanucleus.

the class TemporalYearMethod method evaluate.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.memory.InvocationEvaluator#evaluate(org.datanucleus.query.expression.InvokeExpression, org.datanucleus.query.evaluator.memory.InMemoryExpressionEvaluator)
     */
public Object evaluate(InvokeExpression expr, Object invokedValue, InMemoryExpressionEvaluator eval) {
    if (invokedValue == null && expr.getArguments() != null) {
        // Specified as static function, so use argument of InvokeExpression
        List<Expression> argExprs = expr.getArguments();
        if (argExprs.size() > 1) {
            throw new NucleusUserException("Incorrect number of arguments to YEAR");
        }
        Expression argExpr = argExprs.get(0);
        invokedValue = eval.getValueForExpression(argExpr);
    }
    if (invokedValue == null) {
        return Boolean.FALSE;
    }
    if (!(invokedValue instanceof Date)) {
        throw new NucleusException(Localiser.msg("021011", expr.getOperation(), invokedValue.getClass().getName()));
    }
    if (invokedValue instanceof Date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime((Date) invokedValue);
        return Integer.valueOf(cal.get(Calendar.YEAR));
    } else if (invokedValue instanceof Calendar) {
        return Integer.valueOf(((Calendar) invokedValue).get(Calendar.YEAR));
    } else if (invokedValue instanceof LocalDate) {
        return ((LocalDate) invokedValue).getYear();
    } else if (invokedValue instanceof LocalDateTime) {
        return ((LocalDateTime) invokedValue).getYear();
    } else {
        throw new NucleusUserException("We do not currently support YEAR() with argument of type " + invokedValue.getClass().getName());
    }
}