Example usage for com.amazonaws.services.dynamodbv2.datamodeling DynamoDBScanExpression addFilterCondition

Introduction

In this page you can find the example usage for com.amazonaws.services.dynamodbv2.datamodeling DynamoDBScanExpression addFilterCondition.

Prototype

public void addFilterCondition(String attributeName, Condition condition) 

Source Link

Document

Adds a new filter condition to the current scan filter.

Usage

From source file:com.makariev.dynamodb.forum.service.BicycleQueryScanService.java

License:Apache License

public List<Bicycle> findBicyclesOfSpecificTypeWithMultipleThreads(
        @DsLabel("number of parallel threads") int numberOfThreads, @DsLabel("bicycleType") String bicycleType)
        throws Exception {

    final List<Bicycle> result = new ArrayList<>();

    final DynamoDBScanExpression scanExpression = new DynamoDBScanExpression();
    scanExpression.addFilterCondition("ProductCategory",
            new Condition().withComparisonOperator(ComparisonOperator.EQ)
                    .withAttributeValueList(new AttributeValue().withS("Bicycle")));
    scanExpression.addFilterCondition("BicycleType",
            new Condition().withComparisonOperator(ComparisonOperator.EQ)
                    .withAttributeValueList(new AttributeValue().withS(bicycleType)));
    final List<Bicycle> scanResult = mapper.parallelScan(Bicycle.class, scanExpression, numberOfThreads);

    for (Bicycle bicycle : scanResult) {
        result.add(bicycle);//from  w w  w. j  av  a2s  .c o  m
    }
    return result;
}

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From source file:com.makariev.dynamodb.preferences.UserPreferenceLowLevelAPIService.java

License:Open Source License

@Override
public List<UserPreference> scanByFirstName(String searchForName) {
    final DynamoDBScanExpression scanExpression = new DynamoDBScanExpression();
    scanExpression.addFilterCondition("firstName",
            new Condition().withComparisonOperator(ComparisonOperator.CONTAINS)
                    .withAttributeValueList(new AttributeValue().withS(searchForName)));
    final Map<String, Condition> scanFilter = scanExpression.getScanFilter();

    final ScanResult scanResult = dynamoDb.scan(UserPreference.TABLE_NAME, scanFilter);

    final List<Map<String, AttributeValue>> items = scanResult.getItems();

    return toUserPreferenceList(items);
}

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From source file:com.makariev.dynamodb.preferences.UserPreferenceLowLevelAPIService.java

License:Open Source License

@Override
public List<UserPreference> scanByLastName(String searchForName) {
    final DynamoDBScanExpression scanExpression = new DynamoDBScanExpression();
    scanExpression.addFilterCondition("lastName",
            new Condition().withComparisonOperator(ComparisonOperator.CONTAINS)
                    .withAttributeValueList(new AttributeValue().withS(searchForName)));
    final Map<String, Condition> scanFilter = scanExpression.getScanFilter();

    final ScanResult scanResult = dynamoDb.scan(UserPreference.TABLE_NAME, scanFilter);

    final List<Map<String, AttributeValue>> items = scanResult.getItems();

    return toUserPreferenceList(items);
}

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From source file:com.makariev.dynamodb.preferences.UserPreferenceObjectMapperService.java

License:Open Source License

@Override
public List<UserPreference> scanByFirstName(String searchForName) {

    final DynamoDBScanExpression scanExpression = new DynamoDBScanExpression();
    scanExpression.addFilterCondition("firstName",
            new Condition().withComparisonOperator(ComparisonOperator.CONTAINS)
                    .withAttributeValueList(new AttributeValue().withS(searchForName)));

    final PaginatedScanList<UserPreference> scanList = mapper.scan(UserPreference.class, scanExpression);

    return scanList;
}

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From source file:com.makariev.dynamodb.preferences.UserPreferenceObjectMapperService.java

License:Open Source License

@Override
public List<UserPreference> scanByLastName(String searchForName) {

    final DynamoDBScanExpression scanExpression = new DynamoDBScanExpression();
    scanExpression.addFilterCondition("lastName",
            new Condition().withComparisonOperator(ComparisonOperator.CONTAINS)
                    .withAttributeValueList(new AttributeValue().withS(searchForName)));

    final PaginatedScanList<UserPreference> scanList = mapper.scan(UserPreference.class, scanExpression);

    return scanList;
}

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From source file:org.socialsignin.spring.data.dynamodb.repository.query.DynamoDBEntityWithHashAndRangeKeyCriteria.java

License:Apache License

public DynamoDBScanExpression buildScanExpression() {

    if (sort != null) {
        throw new UnsupportedOperationException("Sort not supported for scan expressions");
    }// ww w .  ja  v  a2 s  .c o  m
    DynamoDBScanExpression scanExpression = new DynamoDBScanExpression();
    if (isHashKeySpecified()) {
        scanExpression.addFilterCondition(getHashKeyAttributeName(),
                createSingleValueCondition(getHashKeyPropertyName(), ComparisonOperator.EQ,
                        getHashKeyAttributeValue(), getHashKeyAttributeValue().getClass(), true));
    }
    if (isRangeKeySpecified()) {
        scanExpression.addFilterCondition(getRangeKeyAttributeName(),
                createSingleValueCondition(getRangeKeyPropertyName(), ComparisonOperator.EQ,
                        getRangeKeyAttributeValue(), getRangeKeyAttributeValue().getClass(), true));
    }
    for (Map.Entry<String, List<Condition>> conditionEntry : attributeConditions.entrySet()) {
        for (Condition condition : conditionEntry.getValue()) {
            scanExpression.addFilterCondition(conditionEntry.getKey(), condition);
        }
    }
    return scanExpression;
}

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From source file:org.socialsignin.spring.data.dynamodb.repository.query.DynamoDBEntityWithHashKeyOnlyCriteria.java

License:Apache License

public DynamoDBScanExpression buildScanExpression() {

    if (sort != null) {
        throw new UnsupportedOperationException("Sort not supported for scan expressions");
    }// ww  w . j a  v a  2s  .  co m

    DynamoDBScanExpression scanExpression = new DynamoDBScanExpression();
    if (isHashKeySpecified()) {
        scanExpression.addFilterCondition(getHashKeyAttributeName(),
                createSingleValueCondition(getHashKeyPropertyName(), ComparisonOperator.EQ,
                        getHashKeyAttributeValue(), getHashKeyAttributeValue().getClass(), true));
    }

    for (Map.Entry<String, List<Condition>> conditionEntry : attributeConditions.entrySet()) {
        for (Condition condition : conditionEntry.getValue()) {
            scanExpression.addFilterCondition(conditionEntry.getKey(), condition);
        }
    }
    return scanExpression;
}

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