Examples with TypedExpressionResult org.drools.modelcompiler.builder.generator.expressiontyper.TypedExpressionResult used on opensource projects

Example 11 with TypedExpressionResult

use of org.drools.modelcompiler.builder.generator.expressiontyper.TypedExpressionResult in project drools by kiegroup.

the class Query method createFromExpr.

private MethodCallExpr createFromExpr(String variableName, Expression expr) {
    MethodCallExpr dslExpr = createDslTopLevelMethod(PATTERN_CALL);
    dslExpr.addArgument(context.getVarExpr(variableName));
    context.addExpression(dslExpr);
    MethodCallExpr fromExpr = createDslTopLevelMethod(FROM_CALL);
    LambdaExpr lambdaExpr = new LambdaExpr();
    lambdaExpr.setEnclosingParameters(true);
    TypedExpressionResult result = new ExpressionTyper(context).toTypedExpression(expr);
    for (String usedDeclration : result.getExpressionTyperContext().getUsedDeclarations()) {
        fromExpr.addArgument(context.getVarExpr(usedDeclration));
        lambdaExpr.addParameter(new Parameter(context.getDelarationType(usedDeclration), usedDeclration));
    }
    fromExpr.addArgument(lambdaExpr);
    if (result.getTypedExpression().isPresent()) {
        lambdaExpr.setBody(new ExpressionStmt(result.getTypedExpression().get().getExpression()));
    }
    return fromExpr;
}