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

Example 31 with Expression

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

the class ComparableExpressionImpl method lt.

/* (non-Javadoc)
     * @see org.datanucleus.query.typesafe.Expression#lt(org.datanucleus.query.typesafe.ComparableExpression)
     */
public BooleanExpression lt(ComparableExpression expr) {
    Expression leftQueryExpr = queryExpr;
    Expression rightQueryExpr = ((ExpressionImpl) expr).getQueryExpression();
    org.datanucleus.query.expression.Expression queryExpr = new DyadicExpression(leftQueryExpr, org.datanucleus.query.expression.Expression.OP_LT, rightQueryExpr);
    return new BooleanExpressionImpl(queryExpr);
}

Example 32 with Expression

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

the class ComparableExpressionImpl method lteq.

/* (non-Javadoc)
     * @see org.datanucleus.query.typesafe.Expression#lteq(java.lang.Object)
     */
public BooleanExpression lteq(T t) {
    Expression leftQueryExpr = queryExpr;
    Expression rightQueryExpr = new Literal(t);
    org.datanucleus.query.expression.Expression queryExpr = new DyadicExpression(leftQueryExpr, org.datanucleus.query.expression.Expression.OP_LTEQ, rightQueryExpr);
    return new BooleanExpressionImpl(queryExpr);
}

Example 33 with Expression

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

the class ComparableExpressionImpl method gteq.

/* (non-Javadoc)
     * @see org.datanucleus.query.typesafe.Expression#gteq(org.datanucleus.query.typesafe.ComparableExpression)
     */
public BooleanExpression gteq(ComparableExpression expr) {
    Expression leftQueryExpr = queryExpr;
    Expression rightQueryExpr = ((ExpressionImpl) expr).getQueryExpression();
    org.datanucleus.query.expression.Expression queryExpr = new DyadicExpression(leftQueryExpr, org.datanucleus.query.expression.Expression.OP_GTEQ, rightQueryExpr);
    return new BooleanExpressionImpl(queryExpr);
}

Example 34 with Expression

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

the class JDOHelperGetObjectIdFunction 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) {
    Expression argExpr = expr.getArguments().get(0);
    if (argExpr instanceof PrimaryExpression) {
        PrimaryExpression primExpr = (PrimaryExpression) argExpr;
        Object value = eval.getValueForPrimaryExpression(primExpr);
        return JDOHelper.getObjectId(value);
    } else if (argExpr instanceof ParameterExpression) {
        ParameterExpression paramExpr = (ParameterExpression) argExpr;
        Object value = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
        return JDOHelper.getObjectId(value);
    } else {
        throw new NucleusException("Dont currently support JDOHelper.getObjectId with arg of type " + argExpr.getClass().getName());
    }
}

Example 35 with Expression

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

the class JDOHelperGetVersionFunction 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) {
    Expression argExpr = expr.getArguments().get(0);
    if (argExpr instanceof PrimaryExpression) {
        PrimaryExpression primExpr = (PrimaryExpression) argExpr;
        Object value = eval.getValueForPrimaryExpression(primExpr);
        return JDOHelper.getVersion(value);
    } else if (argExpr instanceof ParameterExpression) {
        ParameterExpression paramExpr = (ParameterExpression) argExpr;
        Object value = QueryUtils.getValueForParameterExpression(eval.getParameterValues(), paramExpr);
        return JDOHelper.getVersion(value);
    } else {
        throw new NucleusException("Dont currently support JDOHelper.getVersion with arg of type " + argExpr.getClass().getName());
    }
}