Package com.amazonaws.services.dynamodb.model

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


        //Prepare update
        Key key = new Key();
        key.setHashKeyElement(new AttributeValue().withS("1"));

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

        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);
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    @Test
    public void updateItemInTableTest() {
        AttributeValue hash = putItemInDb();
        Map<String, AttributeValueUpdate> attrToUp = new HashMap<String, AttributeValueUpdate>();
        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);
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    @Test
    public void updateItemWithoutTableNameTest() {
        AttributeValue hash = putItemInDb();
        Map<String, AttributeValueUpdate> attrToUp = new HashMap<String, AttributeValueUpdate>();
        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);
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    @Test
    public void updateItemWithoutKeyTest() {
        AttributeValue hash = putItemInDb();
        Map<String, AttributeValueUpdate> attrToUp = new HashMap<String, AttributeValueUpdate>();
        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);
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                String attributeName = reflector.getAttributeName(method);

                if ( getterResult == null && reflector.isAssignableKey(method) ) {
                    AttributeValue newVersionValue = getAutoGeneratedKeyAttributeValue(method, getterResult);
                    updateValues.put(attributeName,
                            new AttributeValueUpdate().withAction("PUT").withValue(newVersionValue));
                    inMemoryUpdates.add(new ValueUpdate(method, newVersionValue, object));

                    if ( config.getSaveBehavior() != 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);
                    }
                } else {
                    AttributeValue currentValue = getSimpleAttributeValue(method, getterResult);
                    if ( currentValue != null ) {
                        updateValues.put(attributeName,
                                new AttributeValueUpdate().withValue(currentValue).withAction("PUT"));
                    } else {
                        throw new DynamoDBMappingException("Null value for non-generated key for method " + method);
                    }
                }
            }
        } else {
            /*
             * If we don't have the required keys by this point, it's an error
             */
            if ( hashKeyElement == null ) {
                throw new DynamoDBMappingException("No value provided for hash key for object " + object);
            }
            if ( rangeKeyGetter != null && rangeKeyElement == null ) {
                throw new DynamoDBMappingException("No value provided for range key for object " + object);
            }
        }

        // Look at every getter and construct an update object for it
        for ( Method method : reflector.getRelevantGetters(clazz) ) {

            // Skip any key methods, since they are handled separately
            if ( method.equals(hashKeyGetter) || method.equals(rangeKeyGetter) )
                continue;

            nonKeyAttributePresent = true;

            Object getterResult = safeInvoke(method, object);
            String attributeName = reflector.getAttributeName(method);

            /*
             * If this is a versioned field, update it
             */
            if ( reflector.isVersionAttributeGetter(method) ) {
                if ( config.getSaveBehavior() != 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);
                updateValues
                        .put(attributeName, new AttributeValueUpdate().withAction("PUT").withValue(newVersionValue));
                inMemoryUpdates.add(new ValueUpdate(method, newVersionValue, object));
            }

            /*
             * Otherwise apply the update value for this attribute.
             */
            else  {
                AttributeValue currentValue = getSimpleAttributeValue(method, getterResult);
                if ( currentValue != null ) {
                    updateValues.put(attributeName, new AttributeValueUpdate().withValue(currentValue)
                            .withAction("PUT"));
                } else if ( config.getSaveBehavior() != SaveBehavior.CLOBBER ) {
                    updateValues.put(attributeName, new AttributeValueUpdate().withAction("DELETE"));
                }
            }
        }

        /*
 
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                    .withN(item.get(key).getN())
                    .withNS(item.get(key).getNS())
                    .withS(item.get(key).getS())
                    .withSS(item.get(key).getSS());
            } else {
                updateValues.put(key, new AttributeValueUpdate(item.get(key), "PUT"));
            }
        }
        return updateValues;
    }
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                    expectedValues.put(attributeName, expected);
                }

                AttributeValue newVersionValue = getVersionAttributeValue(method, getterResult);
                updateValues
                        .put(attributeName, new AttributeValueUpdate().withAction("PUT").withValue(newVersionValue));
                inMemoryUpdates.add(new ValueUpdate(method, newVersionValue));
            }

            /*
             * If this is a new item being saved, assign a key if possible and
             * force a put, rather than an update
             */
            else if ( getterResult == null && reflector.isAssignableKey(method) ) {
                forcePut = true;
                AttributeValue newVersionValue = getAutoGeneratedKeyAttributeValue(method, getterResult);
                updateValues
                        .put(attributeName, new AttributeValueUpdate().withAction("PUT").withValue(newVersionValue));
                inMemoryUpdates.add(new ValueUpdate(method, newVersionValue));
               
                if ( config.getSaveBehavior() != 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);
                }
            }

            /*
             * Otherwise apply the put value for this attribute. Hash and range
             * keys are included in puts, but not updates.
             */
            else if ( config.getSaveBehavior() == SaveBehavior.CLOBBER
                    || (!method.equals(hashKeyGetter) && !method.equals(rangeKeyGetter)) ) {
                nonKeyAttributePresent = true;
                AttributeValue currentValue = getSimpleAttributeValue(method, getterResult);
                if ( currentValue != null ) {
                    updateValues.put(attributeName, new AttributeValueUpdate().withValue(currentValue)
                            .withAction("PUT"));
                } else if ( config.getSaveBehavior() != SaveBehavior.CLOBBER ) {
                    updateValues.put(attributeName, new AttributeValueUpdate().withAction("DELETE"));
                }
            }           
        }

        /*
 
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                String attributeName = reflector.getAttributeName(method);

                if ( getterResult == null && reflector.isAssignableKey(method) ) {
                    AttributeValue newVersionValue = getAutoGeneratedKeyAttributeValue(method, getterResult);
                    updateValues.put(attributeName,
                            new AttributeValueUpdate().withAction("PUT").withValue(newVersionValue));
                    inMemoryUpdates.add(new ValueUpdate(method, newVersionValue, object));

                    if ( config.getSaveBehavior() != 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);
                    }
                } else {
                    AttributeValue currentValue = getSimpleAttributeValue(method, getterResult);
                    if ( currentValue != null ) {
                        updateValues.put(attributeName,
                                new AttributeValueUpdate().withValue(currentValue).withAction("PUT"));
                    } else {
                        throw new DynamoDBMappingException("Null value for non-generated key for method " + method);
                    }
                }
            }
        } else {
            /*
             * If we don't have the required keys by this point, it's an error
             */
            if ( hashKeyElement == null ) {
                throw new DynamoDBMappingException("No value provided for hash key for object " + object);
            }
            if ( rangeKeyGetter != null && rangeKeyElement == null ) {
                throw new DynamoDBMappingException("No value provided for range key for object " + object);
            }
        }

        // Look at every getter and construct an update object for it
        for ( Method method : reflector.getRelevantGetters(clazz) ) {

            // Skip any key methods, since they are handled separately
            if ( method.equals(hashKeyGetter) || method.equals(rangeKeyGetter) )
                continue;

            nonKeyAttributePresent = true;

            Object getterResult = safeInvoke(method, object);
            String attributeName = reflector.getAttributeName(method);

            /*
             * If this is a versioned field, update it
             */
            if ( reflector.isVersionAttributeGetter(method) ) {
                if ( config.getSaveBehavior() != 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);
                updateValues
                        .put(attributeName, new AttributeValueUpdate().withAction("PUT").withValue(newVersionValue));
                inMemoryUpdates.add(new ValueUpdate(method, newVersionValue, object));
            }

            /*
             * Otherwise apply the update value for this attribute.
             */
            else  {
                AttributeValue currentValue = getSimpleAttributeValue(method, getterResult);
                if ( currentValue != null ) {
                    updateValues.put(attributeName, new AttributeValueUpdate().withValue(currentValue)
                            .withAction("PUT"));
                } else if ( config.getSaveBehavior() != SaveBehavior.CLOBBER ) {
                    updateValues.put(attributeName, new AttributeValueUpdate().withAction("DELETE"));
                }
            }
        }

        /*
 
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                    .withN(item.get(key).getN())
                    .withNS(item.get(key).getNS())
                    .withS(item.get(key).getS())
                    .withSS(item.get(key).getSS());
            } else {
                updateValues.put(key, new AttributeValueUpdate(item.get(key), "PUT"));
            }
        }
        return updateValues;
    }
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                String attributeName = reflector.getAttributeName(method);

                if ( getterResult == null && reflector.isAssignableKey(method) ) {
                    AttributeValue newVersionValue = getAutoGeneratedKeyAttributeValue(method, getterResult);
                    updateValues.put(attributeName,
                            new AttributeValueUpdate().withAction("PUT").withValue(newVersionValue));
                    inMemoryUpdates.add(new ValueUpdate(method, newVersionValue, object));

                    if ( config.getSaveBehavior() != 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);
                    }
                } else {
                    AttributeValue currentValue = getSimpleAttributeValue(method, getterResult);
                    if ( currentValue != null ) {
                        updateValues.put(attributeName,
                                new AttributeValueUpdate().withValue(currentValue).withAction("PUT"));
                    } else {
                        throw new DynamoDBMappingException("Null value for non-generated key for method " + method);
                    }
                }
            }
        } else {
            /*
             * If we don't have the required keys by this point, it's an error
             */
            if ( hashKeyElement == null ) {
                throw new DynamoDBMappingException("No value provided for hash key for object " + object);
            }
            if ( rangeKeyGetter != null && rangeKeyElement == null ) {
                throw new DynamoDBMappingException("No value provided for range key for object " + object);
            }
        }

        // Look at every getter and construct an update object for it
        for ( Method method : reflector.getRelevantGetters(clazz) ) {

            // Skip any key methods, since they are handled separately
            if ( method.equals(hashKeyGetter) || method.equals(rangeKeyGetter) )
                continue;

            nonKeyAttributePresent = true;

            Object getterResult = safeInvoke(method, object);
            String attributeName = reflector.getAttributeName(method);

            /*
             * If this is a versioned field, update it
             */
            if ( reflector.isVersionAttributeGetter(method) ) {
                if ( config.getSaveBehavior() != 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);
                updateValues
                        .put(attributeName, new AttributeValueUpdate().withAction("PUT").withValue(newVersionValue));
                inMemoryUpdates.add(new ValueUpdate(method, newVersionValue, object));
            }

            /*
             * Otherwise apply the update value for this attribute.
             */
            else  {
                AttributeValue currentValue = getSimpleAttributeValue(method, getterResult);
                if ( currentValue != null ) {
                    updateValues.put(attributeName, new AttributeValueUpdate().withValue(currentValue)
                            .withAction("PUT"));
                } else if ( config.getSaveBehavior() != SaveBehavior.CLOBBER ) {
                    updateValues.put(attributeName, new AttributeValueUpdate().withAction("DELETE"));
                }
            }
        }

        /*
 
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