dynamodb query filter with optional parameter
In the below code, language filter condition is optional whether it may contains data or null. If it contains null means dynamodb throws some error. How to overcome this ?
Map expressionAttributesNames = new HashMap<>();
expressionAttributesNames.put("#Language", "Language");
Map<String,AttributeValue> expressionAttributeValues = new HashMap<>();
//expressionAttributeValues.put(":docType", new AttributeValue().withS("cp"));
expressionAttributeValues.put(":docName", new AttributeValue().withS("data part"));
//expressionAttributeValues.put(":docKey", new AttributeValue().withS("xxx yyy"));
expressionAttributeValues.put(":language", new AttributeValue().withS(null));
DynamoDBQueryExpression<Tools> queryExpression = new DynamoDBQueryExpression<PuToolsbtools>()
.withKeyConditionExpression(keyConditionExpression)
.withExpressionAttributeNames(expressionAttributesNames)
.withExpressionAttributeValues(expressionAttributeValues)
.withFilterExpression("#Language = :language"); List<Toolsools> tools = mapper.query(Tools.class, queryExpression);
Exception is,
ExpressionAttributeValues contains invalid value: Supplied AttributeValue is empty, must contain exactly one of the supported datatypes for key :language (Service: AmazonDynamoDBv2; Status Code: 400; Error Code: ValidationException;
spring-boot amazon-dynamodb amazon-dynamodb-streams dynamodb-queries
asked Nov 26 '18 at 9:06
annamalai kumaranannamalai kumaran
223
add a comment |
In the below code, language filter condition is optional whether it may contains data or null. If it contains null means dynamodb throws some error. How to overcome this ?
Map expressionAttributesNames = new HashMap<>();
expressionAttributesNames.put("#Language", "Language");
Map<String,AttributeValue> expressionAttributeValues = new HashMap<>();
//expressionAttributeValues.put(":docType", new AttributeValue().withS("cp"));
expressionAttributeValues.put(":docName", new AttributeValue().withS("data part"));
//expressionAttributeValues.put(":docKey", new AttributeValue().withS("xxx yyy"));
expressionAttributeValues.put(":language", new AttributeValue().withS(null));
DynamoDBQueryExpression<Tools> queryExpression = new DynamoDBQueryExpression<PuToolsbtools>()
.withKeyConditionExpression(keyConditionExpression)
.withExpressionAttributeNames(expressionAttributesNames)
.withExpressionAttributeValues(expressionAttributeValues)
.withFilterExpression("#Language = :language"); List<Toolsools> tools = mapper.query(Tools.class, queryExpression);
Exception is,
ExpressionAttributeValues contains invalid value: Supplied AttributeValue is empty, must contain exactly one of the supported datatypes for key :language (Service: AmazonDynamoDBv2; Status Code: 400; Error Code: ValidationException;
spring-boot amazon-dynamodb amazon-dynamodb-streams dynamodb-queries
asked Nov 26 '18 at 9:06
annamalai kumaranannamalai kumaran
223
add a comment |
In the below code, language filter condition is optional whether it may contains data or null. If it contains null means dynamodb throws some error. How to overcome this ?
Map expressionAttributesNames = new HashMap<>();
expressionAttributesNames.put("#Language", "Language");
Map<String,AttributeValue> expressionAttributeValues = new HashMap<>();
//expressionAttributeValues.put(":docType", new AttributeValue().withS("cp"));
expressionAttributeValues.put(":docName", new AttributeValue().withS("data part"));
//expressionAttributeValues.put(":docKey", new AttributeValue().withS("xxx yyy"));
expressionAttributeValues.put(":language", new AttributeValue().withS(null));
DynamoDBQueryExpression<Tools> queryExpression = new DynamoDBQueryExpression<PuToolsbtools>()
.withKeyConditionExpression(keyConditionExpression)
.withExpressionAttributeNames(expressionAttributesNames)
.withExpressionAttributeValues(expressionAttributeValues)
.withFilterExpression("#Language = :language"); List<Toolsools> tools = mapper.query(Tools.class, queryExpression);
Exception is,
ExpressionAttributeValues contains invalid value: Supplied AttributeValue is empty, must contain exactly one of the supported datatypes for key :language (Service: AmazonDynamoDBv2; Status Code: 400; Error Code: ValidationException;
spring-boot amazon-dynamodb amazon-dynamodb-streams dynamodb-queries
asked Nov 26 '18 at 9:06
annamalai kumaranannamalai kumaran
223
In the below code, language filter condition is optional whether it may contains data or null. If it contains null means dynamodb throws some error. How to overcome this ?
Map expressionAttributesNames = new HashMap<>();
expressionAttributesNames.put("#Language", "Language");
Map<String,AttributeValue> expressionAttributeValues = new HashMap<>();
//expressionAttributeValues.put(":docType", new AttributeValue().withS("cp"));
expressionAttributeValues.put(":docName", new AttributeValue().withS("data part"));
//expressionAttributeValues.put(":docKey", new AttributeValue().withS("xxx yyy"));
expressionAttributeValues.put(":language", new AttributeValue().withS(null));
DynamoDBQueryExpression<Tools> queryExpression = new DynamoDBQueryExpression<PuToolsbtools>()
.withKeyConditionExpression(keyConditionExpression)
.withExpressionAttributeNames(expressionAttributesNames)
.withExpressionAttributeValues(expressionAttributeValues)
.withFilterExpression("#Language = :language"); List<Toolsools> tools = mapper.query(Tools.class, queryExpression);
Exception is,
ExpressionAttributeValues contains invalid value: Supplied AttributeValue is empty, must contain exactly one of the supported datatypes for key :language (Service: AmazonDynamoDBv2; Status Code: 400; Error Code: ValidationException;
spring-boot amazon-dynamodb amazon-dynamodb-streams dynamodb-queries
spring-boot amazon-dynamodb amazon-dynamodb-streams dynamodb-queries
asked Nov 26 '18 at 9:06
annamalai kumaranannamalai kumaran
223
asked Nov 26 '18 at 9:06
annamalai kumaranannamalai kumaran
223
edited Jan 16 at 12:32
annamalai kumaran
asked Nov 26 '18 at 9:06
annamalai kumaranannamalai kumaran
223
asked Nov 26 '18 at 9:06
annamalai kumaranannamalai kumaran
223
asked Nov 26 '18 at 9:06
annamalai kumaranannamalai kumaran
223
223
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
If the language filter expression is optional, you should only include it in the query if the value for language is not null.
.
.
.
if (language != null) {
queryExpression.withFilterExpression("#Language = :language");
expressionAttributeValues.put(":language", new AttributeValue().withS(language));
expressionAttributesNames.put("#Language", "Language");
}
List<Tools> tools = mapper.query(Pubtools.class, queryExpression);
answered Nov 26 '18 at 14:52
Matthew PopeMatthew Pope
2,0971815
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53477725%2fdynamodb-query-filter-with-optional-parameter%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
If the language filter expression is optional, you should only include it in the query if the value for language is not null.
.
.
.
if (language != null) {
queryExpression.withFilterExpression("#Language = :language");
expressionAttributeValues.put(":language", new AttributeValue().withS(language));
expressionAttributesNames.put("#Language", "Language");
}
List<Tools> tools = mapper.query(Pubtools.class, queryExpression);
answered Nov 26 '18 at 14:52
Matthew PopeMatthew Pope
2,0971815
add a comment |
If the language filter expression is optional, you should only include it in the query if the value for language is not null.
.
.
.
if (language != null) {
queryExpression.withFilterExpression("#Language = :language");
expressionAttributeValues.put(":language", new AttributeValue().withS(language));
expressionAttributesNames.put("#Language", "Language");
}
List<Tools> tools = mapper.query(Pubtools.class, queryExpression);
answered Nov 26 '18 at 14:52
Matthew PopeMatthew Pope
2,0971815
add a comment |
If the language filter expression is optional, you should only include it in the query if the value for language is not null.
.
.
.
if (language != null) {
queryExpression.withFilterExpression("#Language = :language");
expressionAttributeValues.put(":language", new AttributeValue().withS(language));
expressionAttributesNames.put("#Language", "Language");
}
List<Tools> tools = mapper.query(Pubtools.class, queryExpression);
answered Nov 26 '18 at 14:52
Matthew PopeMatthew Pope
2,0971815
If the language filter expression is optional, you should only include it in the query if the value for language is not null.
.
.
.
if (language != null) {
queryExpression.withFilterExpression("#Language = :language");
expressionAttributeValues.put(":language", new AttributeValue().withS(language));
expressionAttributesNames.put("#Language", "Language");
}
List<Tools> tools = mapper.query(Pubtools.class, queryExpression);
answered Nov 26 '18 at 14:52
Matthew PopeMatthew Pope
2,0971815
edited Nov 26 '18 at 17:36
answered Nov 26 '18 at 14:52
Matthew PopeMatthew Pope
2,0971815
answered Nov 26 '18 at 14:52
Matthew PopeMatthew Pope
2,0971815
answered Nov 26 '18 at 14:52
Matthew PopeMatthew Pope
2,0971815
2,0971815
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53477725%2fdynamodb-query-filter-with-optional-parameter%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
