Examples with QueryResult com.ibm.watson.discovery.v2.model.QueryResult used on opensource projects

Example 1 with QueryResult

use of com.ibm.watson.discovery.v2.model.QueryResult in project aws-doc-sdk-examples by awsdocs.

the class LowLevelGlobalSecondaryIndexExample method queryIndex.

public static void queryIndex(String indexName) {
    System.out.println("\n***********************************************************\n");
    System.out.print("Querying index " + indexName + "...");
    QueryRequest queryRequest = new QueryRequest().withTableName(tableName).withIndexName(indexName).withScanIndexForward(true);
    HashMap<String, Condition> keyConditions = new HashMap<String, Condition>();
    if (indexName == "CreateDateIndex") {
        System.out.println("Issues filed on 2013-11-01");
        keyConditions.put("CreateDate", new Condition().withComparisonOperator(ComparisonOperator.EQ).withAttributeValueList(new AttributeValue().withS("2013-11-01")));
        keyConditions.put("IssueId", new Condition().withComparisonOperator(ComparisonOperator.BEGINS_WITH).withAttributeValueList(new AttributeValue().withS("A-")));
    } else if (indexName == "TitleIndex") {
        System.out.println("Compilation errors");
        keyConditions.put("Title", new Condition().withComparisonOperator(ComparisonOperator.EQ).withAttributeValueList(new AttributeValue().withS("Compilation error")));
        keyConditions.put("IssueId", new Condition().withComparisonOperator(ComparisonOperator.BEGINS_WITH).withAttributeValueList(new AttributeValue().withS("A-")));
        // Select
        queryRequest.setSelect(Select.ALL_PROJECTED_ATTRIBUTES);
    } else if (indexName == "DueDateIndex") {
        System.out.println("Items that are due on 2013-11-30");
        keyConditions.put("DueDate", new Condition().withComparisonOperator(ComparisonOperator.EQ).withAttributeValueList(new AttributeValue().withS("2013-11-30")));
        // Select
        queryRequest.setSelect(Select.ALL_PROJECTED_ATTRIBUTES);
    } else {
        System.out.println("\nNo valid index name provided");
        return;
    }
    queryRequest.setKeyConditions(keyConditions);
    QueryResult result = client.query(queryRequest);
    List<Map<String, AttributeValue>> items = result.getItems();
    Iterator<Map<String, AttributeValue>> itemsIter = items.iterator();
    System.out.println();
    while (itemsIter.hasNext()) {
        Map<String, AttributeValue> currentItem = itemsIter.next();
        Iterator<String> currentItemIter = currentItem.keySet().iterator();
        while (currentItemIter.hasNext()) {
            String attr = (String) currentItemIter.next();
            if (attr == "Priority") {
                System.out.println(attr + "---> " + currentItem.get(attr).getN());
            } else {
                System.out.println(attr + "---> " + currentItem.get(attr).getS());
            }
        }
        System.out.println();
    }
}

Example 2 with QueryResult

use of com.ibm.watson.discovery.v2.model.QueryResult in project aws-doc-sdk-examples by awsdocs.

the class LowLevelLocalSecondaryIndexExample method query.

public static void query(String indexName) {
    System.out.println("\n***********************************************************\n");
    System.out.println("Querying table " + tableName + "...");
    QueryRequest queryRequest = new QueryRequest().withTableName(tableName).withConsistentRead(true).withScanIndexForward(true).withReturnConsumedCapacity(ReturnConsumedCapacity.TOTAL);
    HashMap<String, Condition> keyConditions = new HashMap<String, Condition>();
    keyConditions.put("CustomerId", new Condition().withComparisonOperator(ComparisonOperator.EQ).withAttributeValueList(new AttributeValue().withS("bob@example.com")));
    if (indexName == "IsOpenIndex") {
        System.out.println("\nUsing index: '" + indexName + "': Bob's orders that are open.");
        System.out.println("Only a user-specified list of attributes are returned\n");
        queryRequest.setIndexName(indexName);
        keyConditions.put("IsOpen", new Condition().withComparisonOperator(ComparisonOperator.EQ).withAttributeValueList(new AttributeValue().withN("1")));
        // ProjectionExpression
        queryRequest.setProjectionExpression("OrderCreationDate, ProductCategory, ProductName, OrderStatus");
    } else if (indexName == "OrderCreationDateIndex") {
        System.out.println("\nUsing index: '" + indexName + "': Bob's orders that were placed after 01/31/2013.");
        System.out.println("Only the projected attributes are returned\n");
        queryRequest.setIndexName(indexName);
        keyConditions.put("OrderCreationDate", new Condition().withComparisonOperator(ComparisonOperator.GT).withAttributeValueList(new AttributeValue().withN("20130131")));
        // Select
        queryRequest.setSelect(Select.ALL_PROJECTED_ATTRIBUTES);
    } else {
        System.out.println("\nNo index: All of Bob's orders, by OrderId:\n");
    }
    queryRequest.setKeyConditions(keyConditions);
    QueryResult result = client.query(queryRequest);
    List<Map<String, AttributeValue>> items = result.getItems();
    Iterator<Map<String, AttributeValue>> itemsIter = items.iterator();
    while (itemsIter.hasNext()) {
        Map<String, AttributeValue> currentItem = itemsIter.next();
        Iterator<String> currentItemIter = currentItem.keySet().iterator();
        while (currentItemIter.hasNext()) {
            String attr = (String) currentItemIter.next();
            if (attr == "OrderId" || attr == "IsOpen" || attr == "OrderCreationDate") {
                System.out.println(attr + "---> " + currentItem.get(attr).getN());
            } else {
                System.out.println(attr + "---> " + currentItem.get(attr).getS());
            }
        }
        System.out.println();
    }
    System.out.println("\nConsumed capacity: " + result.getConsumedCapacity() + "\n");
}

Example 3 with QueryResult

use of com.ibm.watson.discovery.v2.model.QueryResult in project aws-doc-sdk-examples by awsdocs.

the class LowLevelQuery method findRepliesForAThreadSpecifyOptionalLimit.

private static void findRepliesForAThreadSpecifyOptionalLimit(String forumName, String threadSubject) {
    Map<String, AttributeValue> lastEvaluatedKey = null;
    do {
        QueryRequest queryRequest = new QueryRequest().withTableName(tableName).withKeyConditions(makeReplyKeyConditions(forumName, threadSubject)).withLimit(1).withExclusiveStartKey(lastEvaluatedKey);
        QueryResult result = client.query(queryRequest);
        for (Map<String, AttributeValue> item : result.getItems()) {
            printItem(item);
        }
        lastEvaluatedKey = result.getLastEvaluatedKey();
    } while (lastEvaluatedKey != null);
}

Example 4 with QueryResult

use of com.ibm.watson.discovery.v2.model.QueryResult in project aws-doc-sdk-examples by awsdocs.

the class LowLevelQuery method findRepliesInLast15DaysWithConfig.

private static void findRepliesInLast15DaysWithConfig(String forumName, String threadSubject) {
    long twoWeeksAgoMilli = (new Date()).getTime() - (15L * 24L * 60L * 60L * 1000L);
    Date twoWeeksAgo = new Date();
    twoWeeksAgo.setTime(twoWeeksAgoMilli);
    SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
    String twoWeeksAgoStr = df.format(twoWeeksAgo);
    Condition sortKeyCondition = new Condition().withComparisonOperator(ComparisonOperator.GT.toString()).withAttributeValueList(new AttributeValue().withS(twoWeeksAgoStr));
    Map<String, Condition> keyConditions = makeReplyKeyConditions(forumName, threadSubject);
    keyConditions.put("ReplyDateTime", sortKeyCondition);
    QueryRequest queryRequest = new QueryRequest().withTableName(tableName).withKeyConditions(keyConditions).withProjectionExpression("Message, ReplyDateTime, PostedBy");
    QueryResult result = client.query(queryRequest);
    for (Map<String, AttributeValue> item : result.getItems()) {
        printItem(item);
    }
}

Example 5 with QueryResult

use of com.ibm.watson.discovery.v2.model.QueryResult in project aws-doc-sdk-examples by awsdocs.

the class LowLevelQuery method findRepliesUsingAFilterExpression.

private static void findRepliesUsingAFilterExpression(String forumName, String threadSubject) {
    Map<String, Condition> keyConditions = makeReplyKeyConditions(forumName, threadSubject);
    Map<String, AttributeValue> expressionAttributeValues = new HashMap<String, AttributeValue>();
    expressionAttributeValues.put(":val", new AttributeValue().withS("User B"));
    QueryRequest queryRequest = new QueryRequest().withTableName(tableName).withKeyConditions(keyConditions).withFilterExpression("PostedBy = :val").withExpressionAttributeValues(expressionAttributeValues).withProjectionExpression("Message, ReplyDateTime, PostedBy");
    QueryResult result = client.query(queryRequest);
    for (Map<String, AttributeValue> item : result.getItems()) {
        printItem(item);
    }
}