Examples of com.amazonaws.services.dynamodbv2.model.WriteRequest

Package com.amazonaws.services.dynamodbv2.model

Examples of com.amazonaws.services.dynamodbv2.model.WriteRequest

com.amazonaws.services.dynamodbv2.model.PutItemRequest

Represents an operation to perform - either DeleteItem or PutItem . You can only specify one of these operations, not both, in a single WriteRequest . If you do need to perform both of these operations, you will need to specify two separate WriteRequest objects.

            inMemoryUpdates.add(new ValueUpdate(method, newVersionValue, object));
            
            if ( getLocalSaveBehavior() != SaveBehavior.CLOBBER ) {
                // Add an expect clause to make sure that the item
                // doesn't already exist, since it's supposed to be new
                ExpectedAttributeValue expected = new ExpectedAttributeValue();
                expected.setExists(false);
                expectedValues.put(attributeName, expected);
            }
        }

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        private void onVersionAttribute(Method method, Object getterResult,
                String attributeName) {
            if ( getLocalSaveBehavior() != SaveBehavior.CLOBBER ) {
                // First establish the expected (current) value for the
                // update call
                ExpectedAttributeValue expected = new ExpectedAttributeValue();


                // For new objects, insist that the value doesn't exist.
                // For existing ones, insist it has the old value.
                AttributeValue currentValue = getSimpleAttributeValue(method, getterResult);
                expected.setExists(currentValue != null);
                if ( currentValue != null ) {
                    expected.setValue(currentValue);
                }
                expectedValues.put(attributeName, expected);
            }


            AttributeValue newVersionValue = getVersionAttributeValue(method, getterResult);

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        config = mergeConfig(config);


        String tableName = getTableName(clazz, config);


        GetItemRequest rq = new GetItemRequest();


        Map<String, AttributeValue> key = getKey(keyObject, clazz);


        rq.setKey(key);
        rq.setTableName(tableName);
        rq.setConsistentRead(config.getConsistentReads() == ConsistentReads.CONSISTENT);




        GetItemResult item = db.getItem(applyUserAgent(rq));
        Map<String, AttributeValue> itemAttributes = item.getItem();
        if ( itemAttributes == null ) {

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        rq.setKey(key);
        rq.setTableName(tableName);
        rq.setConsistentRead(config.getConsistentReads() == ConsistentReads.CONSISTENT);




        GetItemResult item = db.getItem(applyUserAgent(rq));
        Map<String, AttributeValue> itemAttributes = item.getItem();
        if ( itemAttributes == null ) {
            return null;
        }


        T object = marshallIntoObject(clazz, itemAttributes);

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        rq.setKey(key);
        rq.setTableName(tableName);
        rq.setConsistentRead(config.getConsistentReads() == ConsistentReads.CONSISTENT);




        GetItemResult item = db.getItem(applyUserAgent(rq));
        Map<String, AttributeValue> itemAttributes = item.getItem();
        if ( itemAttributes == null ) {
            return null;
        }


        return marshallIntoObject(clazz, itemAttributes);

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            classesByTableName.put(tableName, clazz);


            if ( !requestItems.containsKey(tableName) ) {
                requestItems.put(
                        tableName,
                        new KeysAndAttributes().withConsistentRead(consistentReads).withKeys(
                                new LinkedList<Map<String, AttributeValue>>()));
            }


            requestItems.get(tableName).getKeys().add(getKey(keyObject));

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            classesByTableName.put(tableName, clazz);


            if ( !requestItems.containsKey(tableName) ) {
                requestItems.put(
                        tableName,
                        new KeysAndAttributes().withConsistentRead(consistentReads).withKeys(
                                new LinkedList<Map<String, AttributeValue>>()));
            }


            requestItems.get(tableName).getKeys().add(getKey(keyObject));

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                }


                @Override
                protected void executeLowLevelRequest(boolean onlyKeyAttributeSpecified) {
                    /* Send a putItem request */
                    db.putItem(applyUserAgent(new PutItemRequest().withTableName(getTableName())
                            .withItem(transformAttributes(this.clazz, convertToItem(getAttributeValueUpdates())))
                            .withExpected(getExpectedAttributeValues())));
                }
            };
        } else {

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            Object rangeGetterResult = safeInvoke(rangeKeyGetter, object);
            attributes.put(rangeKeyAttributeName, getSimpleAttributeValue(rangeKeyGetter, rangeGetterResult));
            expectedValues.put(rangeKeyAttributeName, new ExpectedAttributeValue().withExists(false));
        }
        attributes = transformAttributes(clazz, attributes);
        db.putItem(applyUserAgent(new PutItemRequest().withTableName(tableName).withItem(attributes)
                .withExpected(expectedValues)));
    }

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                }


                @Override
                protected void executeLowLevelRequest(boolean onlyKeyAttributeSpecified) {
                    /* Send a putItem request */
                    db.putItem(applyUserAgent(new PutItemRequest().withTableName(getTableName())
                            .withItem(transformAttributes(this.clazz, convertToItem(getAttributeValueUpdates())))
                            .withExpected(getExpectedAttributeValues())));
                }
            };
        } else {

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