Examples with BLangOrderBy org.wso2.ballerinalang.compiler.tree.clauses.BLangOrderBy used on opensource projects

Example 1 with BLangOrderBy

use of org.wso2.ballerinalang.compiler.tree.clauses.BLangOrderBy in project ballerina by ballerina-lang.

the class SiddhiQueryBuilder method visit.

@Override
public void visit(BLangOrderBy orderBy) {
    List<? extends ExpressionNode> varRefs = orderBy.getVariables();
    Iterator<? extends ExpressionNode> iterator = varRefs.iterator();
    BLangSimpleVarRef variableRef = (BLangSimpleVarRef) iterator.next();
    orderByClause = new StringBuilder("order by ");
    addVarRefToClauseBuilder(variableRef, orderByClause);
    while (iterator.hasNext()) {
        orderByClause.append(",").append(" ");
        variableRef = (BLangSimpleVarRef) iterator.next();
        addVarRefToClauseBuilder(variableRef, orderByClause);
    }
}

Example 2 with BLangOrderBy

use of org.wso2.ballerinalang.compiler.tree.clauses.BLangOrderBy in project ballerina by ballerina-lang.

the class SiddhiQueryBuilder method visit.

@Override
public void visit(BLangStreamingQueryStatement streamingQueryStatement) {
    siddhiQuery.append("from ");
    StreamingInput streamingInput = streamingQueryStatement.getStreamingInput();
    if (streamingInput != null) {
        ((BLangStreamingInput) streamingInput).accept(this);
        siddhiQuery.append(" ").append(streamingInputClause);
    }
    PatternClause patternClause = streamingQueryStatement.getPatternClause();
    if (patternClause != null) {
        patternStreamingClause = new StringBuilder();
        ((BLangPatternClause) patternClause).accept(this);
        siddhiQuery.append(" ").append(patternStreamingClause);
    }
    JoinStreamingInput joinStreamingInput = streamingQueryStatement.getJoiningInput();
    if (joinStreamingInput != null) {
        ((BLangJoinStreamingInput) joinStreamingInput).accept(this);
        siddhiQuery.append(" ").append(joinStreamingInputClause);
    }
    SelectClauseNode selectClauseNode = streamingQueryStatement.getSelectClause();
    if (selectClauseNode != null) {
        ((BLangSelectClause) selectClauseNode).accept(this);
        siddhiQuery.append(" ").append(selectExprClause);
    }
    OrderByNode orderByNode = streamingQueryStatement.getOrderbyClause();
    if (orderByNode != null) {
        ((BLangOrderBy) orderByNode).accept(this);
        siddhiQuery.append(" ").append(orderByClause);
    }
    OutputRateLimitNode outputRateLimitNode = streamingQueryStatement.getOutputRateLimitNode();
    if (outputRateLimitNode != null) {
        ((BLangOutputRateLimit) outputRateLimitNode).accept(this);
        siddhiQuery.append(" ").append(outputRateLimitClause);
    }
    BLangStreamAction streamActionNode = (BLangStreamAction) streamingQueryStatement.getStreamingAction();
    if (streamActionNode != null) {
        streamActionNode.accept(this);
        siddhiQuery.append(" ").append(streamActionClause);
        siddhiQuery.append(" ; ");
    }
}

Example 3 with BLangOrderBy

use of org.wso2.ballerinalang.compiler.tree.clauses.BLangOrderBy in project ballerina by ballerina-lang.

the class SqlQueryBuilder method visit.

@Override
public void visit(BLangTableQuery tableQuery) {
    BLangSelectClause selectClause = (BLangSelectClause) tableQuery.getSelectClauseNode();
    BLangStreamingInput streamingInput = (BLangStreamingInput) tableQuery.getStreamingInput();
    BLangJoinStreamingInput joinStreamingInput = (BLangJoinStreamingInput) tableQuery.getJoinStreamingInput();
    BLangOrderBy orderBy = (BLangOrderBy) tableQuery.getOrderByNode();
    StringBuilder sqlTableQuery = new StringBuilder();
    /*Add each clause to the sqlQuery and add the params to TableQuery object*/
    addSelectClauseAndParams(tableQuery, selectClause, sqlTableQuery);
    addFromClauseAndParams(tableQuery, streamingInput, sqlTableQuery);
    addJoinClauseAndParams(tableQuery, joinStreamingInput, sqlTableQuery);
    addGroupByClause(selectClause, sqlTableQuery);
    addHavingClauseAndParams(tableQuery, selectClause, sqlTableQuery);
    addOrderByClause(orderBy, sqlTableQuery);
    tableQuery.setSqlQuery(sqlTableQuery.toString());
}

Example 4 with BLangOrderBy

use of org.wso2.ballerinalang.compiler.tree.clauses.BLangOrderBy in project ballerina by ballerina-lang.

the class SqlQueryBuilder method visit.

@Override
public void visit(BLangOrderBy orderBy) {
    List<? extends ExpressionNode> varRefs = orderBy.getVariables();
    Iterator<? extends ExpressionNode> iterator = varRefs.iterator();
    BLangExpression expr = (BLangExpression) iterator.next();
    orderByClause = new StringBuilder("order by ");
    expr.accept(this);
    orderByClause.append(exprStack.pop());
    while (iterator.hasNext()) {
        orderByClause.append(",").append(" ");
        expr = (BLangExpression) iterator.next();
        expr.accept(this);
        orderByClause.append(exprStack.pop());
    }
}

Example 5 with BLangOrderBy

use of org.wso2.ballerinalang.compiler.tree.clauses.BLangOrderBy in project ballerina by ballerina-lang.

the class SemanticAnalyzer method visit.

public void visit(BLangStreamingQueryStatement streamingQueryStatement) {
    StreamingInput streamingInput = streamingQueryStatement.getStreamingInput();
    if (streamingInput != null) {
        ((BLangStreamingInput) streamingInput).accept(this);
        JoinStreamingInput joinStreamingInput = streamingQueryStatement.getJoiningInput();
        if (joinStreamingInput != null) {
            ((BLangJoinStreamingInput) joinStreamingInput).accept(this);
        }
    }
    SelectClauseNode selectClauseNode = streamingQueryStatement.getSelectClause();
    if (selectClauseNode != null) {
        ((BLangSelectClause) selectClauseNode).accept(this);
    }
    OrderByNode orderByNode = streamingQueryStatement.getOrderbyClause();
    if (orderByNode != null) {
        ((BLangOrderBy) orderByNode).accept(this);
    }
    StreamActionNode streamActionNode = streamingQueryStatement.getStreamingAction();
    if (streamActionNode != null) {
        ((BLangStreamAction) streamActionNode).accept(this);
    }
    BLangPatternClause patternClause = (BLangPatternClause) streamingQueryStatement.getPatternClause();
    if (patternClause != null) {
        patternClause.accept(this);
    }
}