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

Example 11 with InvokeExpression

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

the class StringStartsWithMethod 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 Boolean.FALSE;
    }
    if (!(invokedValue instanceof String)) {
        throw new NucleusException(Localiser.msg("021011", method, invokedValue.getClass().getName()));
    }
    String arg1 = null;
    Object argObj = null;
    Object param = expr.getArguments().get(0);
    if (param instanceof PrimaryExpression) {
        PrimaryExpression primExpr = (PrimaryExpression) param;
        argObj = eval.getValueForPrimaryExpression(primExpr);
    } else if (param instanceof ParameterExpression) {
        ParameterExpression paramExpr = (ParameterExpression) param;
        argObj = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
    } else if (param instanceof Literal) {
        argObj = ((Literal) param).getLiteral();
    } else if (param instanceof InvokeExpression) {
        argObj = eval.getValueForInvokeExpression((InvokeExpression) param);
    } else {
        throw new NucleusException(method + "(param) where param is instanceof " + param.getClass().getName() + " not supported");
    }
    arg1 = QueryUtils.getStringValue(argObj);
    Boolean result = null;
    if (expr.getArguments().size() == 2) {
        Literal param2 = (Literal) expr.getArguments().get(1);
        int arg2 = -1;
        if (param2.getLiteral() instanceof Number) {
            arg2 = ((Number) param2.getLiteral()).intValue();
        }
        result = ((String) invokedValue).startsWith(arg1, arg2) ? Boolean.TRUE : Boolean.FALSE;
    } else {
        result = ((String) invokedValue).startsWith(arg1) ? Boolean.TRUE : Boolean.FALSE;
    }
    return result;
}

Example 12 with InvokeExpression

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

the class StringSubstringMethod 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 String)) {
        throw new NucleusException(Localiser.msg("021011", method, invokedValue.getClass().getName()));
    }
    int arg0 = -1;
    Expression arg0Expr = expr.getArguments().get(0);
    Object arg0Val = null;
    if (arg0Expr instanceof PrimaryExpression) {
        arg0Val = eval.getValueForPrimaryExpression((PrimaryExpression) arg0Expr);
    } else if (arg0Expr instanceof ParameterExpression) {
        arg0Val = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), (ParameterExpression) arg0Expr);
    } else if (arg0Expr instanceof Literal) {
        arg0Val = ((Literal) arg0Expr).getLiteral();
    } else if (arg0Expr instanceof DyadicExpression) {
        arg0Val = ((DyadicExpression) arg0Expr).evaluate(eval);
    }
    if (!(arg0Val instanceof Number)) {
        throw new NucleusException(method + "(param1[,param2]) : param1 must be numeric");
    }
    arg0 = ((Number) arg0Val).intValue();
    String result = null;
    if (expr.getArguments().size() == 2) {
        int arg1 = -1;
        Expression arg1Expr = expr.getArguments().get(1);
        Object arg1Val = null;
        if (arg1Expr instanceof PrimaryExpression) {
            arg1Val = eval.getValueForPrimaryExpression((PrimaryExpression) arg1Expr);
        } else if (arg1Expr instanceof ParameterExpression) {
            arg1Val = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), (ParameterExpression) arg1Expr);
        } else if (arg1Expr instanceof Literal) {
            arg1Val = ((Literal) arg1Expr).getLiteral();
        } else if (arg0Expr instanceof DyadicExpression) {
            arg1Val = ((DyadicExpression) arg1Expr).evaluate(eval);
        }
        if (!(arg1Val instanceof Number)) {
            throw new NucleusException(method + "(param1,param2) : param2 must be numeric");
        }
        arg1 = ((Number) arg1Val).intValue();
        if (((String) invokedValue).length() < arg1) {
            if (((String) invokedValue).length() < arg0) {
                return null;
            }
            return ((String) invokedValue).substring(arg0);
        }
        result = ((String) invokedValue).substring(arg0, arg1);
    } else {
        if (((String) invokedValue).length() < arg0) {
            return null;
        }
        result = ((String) invokedValue).substring(arg0);
    }
    return result;
}

Example 13 with InvokeExpression

use of org.datanucleus.query.expression.InvokeExpression 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 14 with InvokeExpression

use of org.datanucleus.query.expression.InvokeExpression 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 15 with InvokeExpression

use of org.datanucleus.query.expression.InvokeExpression 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());
    }
}