Examples of com.amazonaws.services.dynamodb.model.UpdateItemRequest

Package com.amazonaws.services.dynamodb.model

Examples of com.amazonaws.services.dynamodb.model.UpdateItemRequest

com.amazonaws.services.dynamodb.model.UpdateItemRequest
Container for the parameters to the {@link com.amazonaws.services.dynamodb.AmazonDynamoDB#updateItem(UpdateItemRequest) UpdateItem operation}.
Edits an existing item's attributes.

You can perform a conditional update (insert a new attribute name-value pair if it doesn't exist, or replace an existing name-value pair if it has certain expected attribute values).
@see com.amazonaws.services.dynamodb.AmazonDynamoDB#updateItem(UpdateItemRequest)

        AttributeValueUpdate update = new AttributeValueUpdate();
        update.setAction("PUT");
        update.setValue(hash);
        attrToUp.put("updated", update);
        Key key = new Key(hash);
        UpdateItemRequest request = new UpdateItemRequest(tableName, key, attrToUp);
        UpdateItemResult res = getClient().updateItem(request);
        Assert.assertNotNull(res);
        Assert.assertNotNull(res.getAttributes());
    }

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        AttributeValueUpdate update = new AttributeValueUpdate();
        update.setAction("PUT");
        update.setValue(hash);
        attrToUp.put("updated", update);
        Key key = new Key(hash);
        UpdateItemRequest request = new UpdateItemRequest();
        request.setKey(key);
        request.setAttributeUpdates(attrToUp);
    try {
      getClient().updateItem(request);
      Assert.assertTrue(false);// Should have thrown an exception
    } catch (AmazonServiceException ase) {
    }

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        AttributeValueUpdate update = new AttributeValueUpdate();
        update.setAction("PUT");
        update.setValue(hash);
        attrToUp.put("updated", update);
        Key key = new Key(hash);
        UpdateItemRequest request = new UpdateItemRequest();
        request.setTableName(tableName);
        request.setAttributeUpdates(attrToUp);
    try {
      getClient().updateItem(request);
      Assert.assertTrue(false);// Should have thrown an exception
    } catch (AmazonServiceException ase) {
    }

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        key.setHashKeyElement(new AttributeValue().withS("1"));
        
        Map<String, AttributeValueUpdate> dynValues = new HashMap<String, AttributeValueUpdate> ();
        dynValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.ADD));
        
        UpdateItemRequest update = new UpdateItemRequest(tableName, key, dynValues);
        
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

View Full Code Here

        key.setHashKeyElement(new AttributeValue().withS("1"));
        
        Map<String, AttributeValueUpdate> dynValues = new HashMap<String, AttributeValueUpdate> ();
        dynValues.put("count", new AttributeValueUpdate(new AttributeValue().withNS("100"), AttributeAction.ADD));
        
        UpdateItemRequest update = new UpdateItemRequest(tableName, key, dynValues);
        
        getClient().updateItem(update);
        
        //second update
        dynValues = new HashMap<String, AttributeValueUpdate> ();
        dynValues.put("count", new AttributeValueUpdate(new AttributeValue().withNS("102"), AttributeAction.ADD));
        update = new UpdateItemRequest(tableName, key, dynValues);        
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

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        key.setHashKeyElement(new AttributeValue().withS("1"));
        
        Map<String, AttributeValueUpdate> oldValues = new HashMap<String, AttributeValueUpdate> ();
        oldValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.PUT));
        
        UpdateItemRequest update = new UpdateItemRequest(tableName, key, oldValues);
        
        getClient().updateItem(update);
        
        //conditional update
        HashMap<String, AttributeValueUpdate> newValues = new HashMap<String, AttributeValueUpdate> ();
        newValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("102"), AttributeAction.PUT));
        
        HashMap<String, ExpectedAttributeValue> expectedValues = new HashMap<String, ExpectedAttributeValue> ();
        expectedValues.put("count", new ExpectedAttributeValue().withValue(new AttributeValue().withN("100")));
        
        update = new UpdateItemRequest().withTableName(tableName).withKey(key).withAttributeUpdates(newValues).withExpected(expectedValues);        
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

View Full Code Here

        key.setHashKeyElement(new AttributeValue().withS("1"));
        
        Map<String, AttributeValueUpdate> oldValues = new HashMap<String, AttributeValueUpdate> ();
        oldValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.PUT));
        
        UpdateItemRequest update = new UpdateItemRequest(tableName, key, oldValues);
        
        getClient().updateItem(update);
        
        //conditional update
        HashMap<String, AttributeValueUpdate> newValues = new HashMap<String, AttributeValueUpdate> ();
        newValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("102"), AttributeAction.PUT));
        newValues.put("ids", new AttributeValueUpdate(new AttributeValue().withS("[er, er]"), AttributeAction.ADD));
        
        HashMap<String, ExpectedAttributeValue> expectedValues = new HashMap<String, ExpectedAttributeValue> ();
        expectedValues.put("count", new ExpectedAttributeValue().withValue(new AttributeValue().withN("100")));
        
        update = new UpdateItemRequest().withTableName(tableName).withKey(key).withAttributeUpdates(newValues).withExpected(expectedValues);        
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

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        key.setHashKeyElement(new AttributeValue().withS("1"));
        
        Map<String, AttributeValueUpdate> oldValues = new HashMap<String, AttributeValueUpdate> ();
        oldValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.PUT));
        
        UpdateItemRequest update = new UpdateItemRequest(tableName, key, oldValues);
        
        getClient().updateItem(update);
        
        //conditional update
        HashMap<String, AttributeValueUpdate> newValues = new HashMap<String, AttributeValueUpdate> ();
        newValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("102"), AttributeAction.PUT));
        newValues.put("ids", new AttributeValueUpdate(new AttributeValue().withS("[er, er]"), AttributeAction.PUT));
        
        HashMap<String, ExpectedAttributeValue> expectedValues = new HashMap<String, ExpectedAttributeValue> ();
        expectedValues.put("count", new ExpectedAttributeValue().withValue(new AttributeValue().withN("100")));
        
        update = new UpdateItemRequest().withTableName(tableName).withKey(key).withAttributeUpdates(newValues).withExpected(expectedValues);        
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

View Full Code Here

        key.setHashKeyElement(new AttributeValue().withS("1"));
        
        Map<String, AttributeValueUpdate> oldValues = new HashMap<String, AttributeValueUpdate> ();
        oldValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.PUT));
        
        UpdateItemRequest update = new UpdateItemRequest(tableName, key, oldValues);
        
        getClient().updateItem(update);
        
        //conditional update
        HashMap<String, AttributeValueUpdate> newValues = new HashMap<String, AttributeValueUpdate> ();
        newValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("102"), AttributeAction.PUT));
        
        HashMap<String, ExpectedAttributeValue> expectedValues = new HashMap<String, ExpectedAttributeValue> ();
        expectedValues.put("count", new ExpectedAttributeValue().withValue(new AttributeValue().withN("10")));
        
        update = new UpdateItemRequest().withTableName(tableName).withKey(key).withAttributeUpdates(newValues).withExpected(expectedValues);
        
        try{
          getClient().updateItem(update);
  
          inProcessClient.save(PERSISTENCE_PATH);

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        Map<String, AttributeValueUpdate> oldValues = new HashMap<String, AttributeValueUpdate> ();
        oldValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.PUT));
        oldValues.put("ids", new AttributeValueUpdate(new AttributeValue().withS("[er, er]"), AttributeAction.ADD));
        
        UpdateItemRequest update = new UpdateItemRequest(tableName, key, oldValues);
        
        getClient().updateItem(update);
        
        //conditional update
        HashMap<String, AttributeValueUpdate> newValues = new HashMap<String, AttributeValueUpdate> ();
        newValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("102"), AttributeAction.PUT));
        newValues.put("ids", new AttributeValueUpdate(new AttributeValue().withS("[er, er]"), AttributeAction.DELETE));
        
        HashMap<String, ExpectedAttributeValue> expectedValues = new HashMap<String, ExpectedAttributeValue> ();
        expectedValues.put("count", new ExpectedAttributeValue().withValue(new AttributeValue().withN("100")));
        
        update = new UpdateItemRequest().withTableName(tableName).withKey(key).withAttributeUpdates(newValues).withExpected(expectedValues);        
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

View Full Code Here

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