Examples with Expression org.wso2.siddhi.query.api.expression.Expression used on opensource projects

Example 31 with Expression

use of org.wso2.siddhi.query.api.expression.Expression in project siddhi by wso2.

the class SiddhiQLBaseVisitorImpl method visitSet_clause.

/**
 * {@inheritDoc}
 * <p>The default implementation returns the result of calling
 * {@link #visitChildren} on {@code ctx}.</p>
 *
 * @param ctx
 */
@Override
public UpdateSet visitSet_clause(@NotNull SiddhiQLParser.Set_clauseContext ctx) {
    UpdateSet updateSet = new UpdateSet();
    for (SiddhiQLParser.Set_assignmentContext setAssignmentContext : ctx.set_assignment()) {
        updateSet.set(((Variable) visit(setAssignmentContext.attribute_reference())), (Expression) visit(setAssignmentContext.expression()));
    }
    populateQueryContext(updateSet, ctx);
    return updateSet;
}

Example 32 with Expression

use of org.wso2.siddhi.query.api.expression.Expression in project siddhi by wso2.

the class SiddhiQLBaseVisitorImpl method visitStore_input.

@Override
public Object visitStore_input(SiddhiQLParser.Store_inputContext ctx) {
    String sourceId = (String) visit(ctx.source_id());
    String alias = null;
    if (ctx.alias() != null) {
        alias = (String) visit(ctx.source_id());
    }
    Store store = InputStore.store(alias, sourceId);
    Expression expression = null;
    if (ctx.expression() != null) {
        expression = (Expression) visit(ctx.expression());
    }
    populateQueryContext(store, ctx);
    if (ctx.per() != null) {
        return store.on(expression, (Within) visit(ctx.within_time_range()), (Expression) visit(ctx.per()));
    } else if (expression != null) {
        return store.on(expression);
    } else {
        return store;
    }
}

Example 33 with Expression

use of org.wso2.siddhi.query.api.expression.Expression in project siddhi by wso2.

the class SiddhiQLBaseVisitorImpl method visitFilter.

/**
 * {@inheritDoc}
 * <p>The default implementation returns the result of calling
 * {@link #visitChildren} on {@code ctx}.</p>
 *
 * @param ctx
 */
@Override
public Filter visitFilter(@NotNull SiddhiQLParser.FilterContext ctx) {
    Filter filter = new Filter((Expression) visit(ctx.expression()));
    populateQueryContext(filter, ctx);
    return filter;
}

Example 34 with Expression

use of org.wso2.siddhi.query.api.expression.Expression in project siddhi by wso2.

the class SiddhiQLBaseVisitorImpl method visitFunction_operation.

/**
 * {@inheritDoc}
 * <p>The default implementation returns the result of calling
 * {@link #visitChildren} on {@code ctx}.</p>
 *
 * @param ctx
 */
@Override
public Object visitFunction_operation(@NotNull SiddhiQLParser.Function_operationContext ctx) {
    Expression expression;
    if (ctx.function_namespace() != null) {
        if (ctx.attribute_list() != null) {
            expression = Expression.function((String) visit(ctx.function_namespace()), (String) visit(ctx.function_id()), (Expression[]) visit(ctx.attribute_list()));
        } else {
            expression = Expression.function((String) visit(ctx.function_namespace()), (String) visit(ctx.function_id()), null);
        }
    } else {
        if (ctx.attribute_list() != null) {
            expression = Expression.function((String) visit(ctx.function_id()), (Expression[]) visit(ctx.attribute_list()));
        } else {
            expression = Expression.function((String) visit(ctx.function_id()), null);
        }
    }
    populateQueryContext(expression, ctx);
    return expression;
}

Example 35 with Expression

use of org.wso2.siddhi.query.api.expression.Expression in project siddhi by wso2.

the class SiddhiQLBaseVisitorImpl method visitAnd_math_operation.

/**
 * {@inheritDoc}
 * <p>The default implementation returns the result of calling
 * {@link #visitChildren} on {@code ctx}.</p>
 *
 * @param ctx
 */
@Override
public Expression visitAnd_math_operation(@NotNull SiddhiQLParser.And_math_operationContext ctx) {
    if (ctx.AND() != null) {
        Expression expression = Expression.and((Expression) visit(ctx.math_operation(0)), (Expression) visit(ctx.math_operation(1)));
        populateQueryContext(expression, ctx);
        return expression;
    } else {
        throw newSiddhiParserException(ctx);
    }
}