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A Clojure client library for Amazon's SimpleDB (SDB)
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Rummage is a Clojure client library for Amazon’s SimpleDB (SDB). It depends upon the standard AWS SDK for Java, and provides a Clojure-idiomatic API for the SDB-related functionality therein.

This is a fork of Rich Hickey’s original SDB client library implementation that was later maintained in miscellaneous ways by various contributors on various forks. This is a nearly complete rewrite, made necessary by my needing/wanting various changes (linked for historical/reference purposes only) compared to Rich’s original implementation.

rummage 1520s, "act of arranging cargo in a ship," aphetic of M.Fr. arrumage "arrangement of cargo," from arrumer "to stow goods in the hold of a ship," from a- "to" + rumer, probably from Germanic (cf. O.N. rum "compartment in a ship," O.H.G. rum "space," O.E. rum, see room). Meaning "to search (the hold of a ship) thoroughly" first recorded 1620s. Rummage sale (1858) originally was a sale at docks of unclaimed goods.


This library was forked from an established project, and has gotten a fair bit of use over the past 18 months since its reorg/refactoring. It can be considered stable.


Rummage is available in Maven central. Add it to your Maven project’s pom.xml:


or your leiningen/cake project.clj:

[com.cemerick/rummage "1.0.1"]


I strongly recommend squelching the AWS SDK’s very verbose logging before using Rummage (the former spews a variety of stuff out on INFO that I personally think should be in DEBUG or TRACE). You can do this with this snippet:

(.setLevel (java.util.logging.Logger/getLogger "com.amazonaws")

Translate as necessary if you’re using log4j, etc.


You should be familiar with SDB itself before sensibly using this library; in particular, you’ll need to understand its data model and the semantics of the operations underlying Rummage’s implementation, which are all documented here.

You’ll first need to load the library and create a SDB client object to do anything:

(require '[cemerick.rummage :as sdb])
(def client (sdb/create-client "your aws id" "your aws secret-key"))

client here is an instance of

Administrative operations

Once you have a client object, you can use all of Rummage’s administrative operations:

=> (doseq [n ["foo" "bar"]]
     (create-domain client n))
=> (list-domains client)
("bar" "foo")
=> (domain-metadata client "foo")
{:itemNamesSizeBytes 0, :attributeNamesSizeBytes 0, :attributeValueCount 0, :itemCount 0,
 :attributeNameCount 0, :attributeValuesSizeBytes 0, :timestamp 1299688823}
=> (doseq [n (list-domains client)]
     (delete-domain client n))
(list-domains client)


SimpleDB stores all data as strings, so you have to specify how Rummage should encode and decode your data. This is done by providing a configuration map as the first argument to each of Rummage’s functions; this configuration map must contain a set of functions that encode data into strings for storage in SDB, and decode strings retrieved from SDB into (presumably) richer data types.

The cemerick.rummage.encoding namespace provides a number of configuration maps implementing encoding strategies suitable for (hopefully) most datasets that you can use without modification to encode your data for storage in SDB. All you need to do is assoc your client object into your desired baseline configuration map:

=> (require '[cemerick.rummage.encoding :as enc])
=> (def config (assoc enc/keyword-strings :client client))

See Data Encoding Schemes for a detailed discussion of what functions must be found in a configuration map, an enumeration of the canned configurations available in the cemerick.rummage.encoding namespace, and how you can easily build your own configurations that map item names to particular encoding strategies.

The keyword-strings base configuration is used for most of the examples here, which naively converts all item values to strings when putting, does nothing to those string values upon retrieval, but does restore keys to keywords.

Note that all of the administrative functions accept either a bare client or a configuration map containing a object mapped to :client:

=> (create-domain config "demo")

Put, get, and delete attributes

Rummage supports SDB’s operations for putting, getting, and deleting items, as well as batch-put and batch-delete operations.

What is an item?

"Item" is a SimpleDB term that refers to a basket of key/value pairs identified by an "item name". Translated to Clojure/Rummage terms, each item is a multimap that contains:

  1. the "item name" (interchangeably referred to as the item’s id here) mapped to :cemerick.rummage/id

  2. a slot for each attribute key in the item, the value for which is either a scalar (e.g. string, number, keyword, date, etc) or a set of scalars

Rummage reserves the key ::sdb/id (which expands to :cemerick.rummage/id assuming you’ve aliased the cemerick.rummage namespace to sdb) to identify the ID of items (called itemName() in the SDB documentation). It will expect every item provided to put-attrs or batch-put-attrs to contain an ::sdb/id slot, and items loaded via get-attrs, query, and query-all will have their IDs mapped to ::sdb/id.

Singular get, put, and delete

Nothing here should be surpising or particularly interesting:

=> (create-domain config "demo")
=> (put-attrs config "demo" {::sdb/id "foo" :name "value" :key #{50 60 65}})
=> (get-attrs config "demo" "foo")
{:key #{"60" "50" "65"}, :name "value", :cemerick.rummage/id "foo"}

You can optionally specify a limited set of keys to delete, or a limited mapping of key/value pairs to delete:

=> (delete-attrs config "demo" "foo" :attrs {:key #{60}})
=> (get-attrs config "demo" "bar")
{:key #{"50" "65"}, :name "value", :cemerick.rummage/id "foo"}
=> (delete-attrs config "demo" "foo" :attrs #{:key})
=> (get-attrs config "demo" "foo")
{:name "value", :cemerick.rummage/id "foo"}
=> (delete-attrs config "demo" "foo")
=> (get-attrs config "demo" "foo")

You can attach conditions to puts and deletes; see Conditional puts and deletes for details.


If you want to use consistent-read semantics (as described in various parts of the SDB documentation) when using the get-attrs and query functions, assoc a true value into your configuration map’s :consistent-read? slot.

Batch put and delete

batch-put-attrs and batch-delete-attrs each accept any number of items or delete specs, respectively. (SimpleDB supports batch puts and deletes of only 25 items at a time; Rummage transparently makes as many requests as are necessary to complete each batch put or batch delete operation.)

=> (batch-put-attrs config "demo" [{::sdb/id "foo" :name "value" :key 50}
                                   {::sdb/id "bar" :name "value" :key #{60 65}}
                                   {::sdb/id "baz" :name "value" :key 70}])
=> (get-attrs config "demo" "baz")
{:key "70", :name "value", ::sdb/id "baz"}

batch-delete-attrs accepts a collection of "delete specs": vectors that contain an item ID as their first element, and an optional set or map as a second element. When a set is provided, then only attributes with names corresponding to keys in that set are deleted; when a map is provided, only attributes with names and values corresponding to pairs in that map are deleted:

=> (batch-delete-attrs config "demo" [["foo" #{:key}]
                                      ["bar" {:key 60}]
=> (get-attrs config "demo" "foo")
{:name "value", :cemerick.rummage/id "foo"}
=> (get-attrs config "demo" "bar")
{:key "65", :name "value", :cemerick.rummage/id "bar"}
=> (get-attrs config "demo" "baz")

Appending (instead of replacing) values

All put operations replace existing item values for the same keys by default. If you would like to add/append values for an existing item key, put-attrs and batch-put-attrs optionally accept an :add-to? argument: a set of item keys for which item values should be appended, rather than replaced:

=> (put-attrs config "demo" {::sdb/id "appending" :name 50})
=> (get-attrs config "demo" "appending")
{:name "50", ::sdb/id "appending"}
=> (put-attrs config "demo" {::sdb/id "appending" :name 60})
=> (get-attrs config "demo" "appending")
{:name "60", ::sdb/id "appending"}
=> (put-attrs config "demo" {::sdb/id "appending" :name 70} :add-to? #{:name})
=> (get-attrs config "demo" "appending")
{:name #{"70" "60"}, ::sdb/id "appending"}

Conditional puts and deletes

Both delete-attrs and put-attrs can be provided with values defining conditions under which their corresponding requests should fail:

=> (put-attrs config "demo" {::sdb/id "conditional" :name 70})
=> (put-attrs config "demo" {::sdb/id "conditional" :name 100} :not-expecting :name)
#<CompilerException Status Code: 409, AWS Request ID: a5e71a72-76f2-7d42-e10c-958a773df53b,
  AWS Error Code: ConditionalCheckFailed,
  AWS Error Message: Conditional check failed. Attribute (name) value exists (NO_SOURCE_FILE:0)>
=> (put-attrs config "demo" {::sdb/id "conditional" :name 100} :expecting [:other-name 100])
#<CompilerException Status Code: 404, AWS Request ID: 61939a96-f79f-678e-1e4f-7d29ebbe8e02,
  AWS Error Code: AttributeDoesNotExist,
  AWS Error Message: Attribute (other-name) does not exist (NO_SOURCE_FILE:0)>
=> (put-attrs config "demo" {::sdb/id "conditional" :name 100} :expecting [:name 50])
#<CompilerException Status Code: 409, AWS Request ID: 6bac4305-6877-c1bb-b8b5-c07b08e83d07,
  AWS Error Code: ConditionalCheckFailed,
  AWS Error Message: Conditional check failed. Attribute (name) value is (70) but was expected (50) (NO_SOURCE_FILE:0)>
=> (put-attrs config "demo" {::sdb/id "conditional" :name 100} :expecting [:name 70])
=> (get-attrs config "demo" "conditional")
{:name "100", ::sdb/id "conditional"}
=> (delete-attrs config "demo" "conditional" :not-expecting :name)
#<CompilerException Status Code: 409, AWS Request ID: ca98837b-8be1-9ec9-66fe-5989776fb3bf,
  AWS Error Code: ConditionalCheckFailed,
  AWS Error Message: Conditional check failed. Attribute (name) value exists (NO_SOURCE_FILE:0)>
=> (delete-attrs config "demo" "conditional" :expecting [:name 100])
=> (get-attrs config "demo" "conditional")


You can issue ad-hoc queries over data you’ve stored in SimpleDB. SDB’s canonical representation of these queries is textual, and vaguely resembles SQL:

(batch-put-attrs config "demo" [{::sdb/id "foo" :name "Claremont" :key 50}
                                {::sdb/id "bar" :name "Burlington" :key #{60 65}}
                                {::sdb/id "baz" :name "Keene" :key 70}])
=> (query config "select key from demo where key is not null")
({:key "50", :cemerick.rummage/id "foo"}
 {:key #{"60" "65"}, :cemerick.rummage/id "bar"}
 {:key "70", :cemerick.rummage/id "baz"})

As when retrieving items using get-attrs, query uses the encoding functions in the the configuration map provided as its first argument.


You can optionally use SDB’s consistent read semantics when querying.

Using strings to query SDB works (and may be necessary if you already have canned SDB queries in a "legacy" codebase or are integrating with a system that somehow produces SDB queries dynamically), but doing so leaves you to remember SDB’s quoting rules and replicate the encoding that was used to store attribute names and values. Rummage provides a Clojure map-based DSL for querying SDB:

=> (query config '{select count from demo})
=> (query config '{select id from demo})
("bar" "baz" "foo")
=> (query config '{select [:key] from demo where (> :key 60)})
({:key #{"60" "65"}, :cemerick.rummage/id "bar"}
 {:key "70", :cemerick.rummage/id "baz"})
=> (query config '{select [:key] from demo where (like ::sdb/id "ba%")})
({:key #{"60" "65"}, :cemerick.rummage/id "bar"}
 {:key "70", :cemerick.rummage/id "baz"})
=> (query config '{select [:key] from demo where (and (like ::sdb/id "ba%")
                                                   (< :key 70))})
({:key #{"60" "65"}, :cemerick.rummage/id "bar"})
=> (query config '{select [:name] from demo where (!= :name "Keene")})
({:name "Burlington", :cemerick.rummage/id "bar"}
 {:name "Claremont", :cemerick.rummage/id "foo"})
=> (query config '{select * from demo where (not-null :key) order-by [:key]})
({:key "50", :name "Claremont", :cemerick.rummage/id "foo"}
 {:key #{"60" "65"}, :name "Burlington", :cemerick.rummage/id "bar"}
 {:key "70", :name "Keene", :cemerick.rummage/id "baz"})
=> (query config '{select * from demo order-by [:key desc] where (not-null :key)})
({:key "70", :name "Keene", :cemerick.rummage/id "baz"}
 {:key #{"60" "65"}, :name "Burlington", :cemerick.rummage/id "bar"}
 {:key "50", :name "Claremont", :cemerick.rummage/id "foo"})
=> (query config '{select * from demo order-by [:key desc] where (not-null :key) limit 1})
({:key "70", :name "Keene", :cemerick.rummage/id "baz"})

Since this query style is map-based, you can generate it dynamically. Additionally, you can easily interpolate values – parameters, keys, domain names, comparison values, etc – into query map literals using syntax-quote:

(let [domain-name "demo"
      key-values [50 70]]
  (query config `{select [:name] from ~domain-name where (in :key ~key-values)}))
({:name "Claremont", :cemerick.rummage/id "foo"} {:name "Keene", :cemerick.rummage/id "baz"})

Rummage’s select-string function is used to convert a query map to a string, with help in part from the configuration map carrying encoding functions. You can use this function yourself to help in your understanding of how query maps are translated to query strings:

=> (select-string config '{select [:key] from demo where (and (like ::sdb/id "ba%")
                                                           (< :key 70))})
"select `key` from `demo` where (itemName() like 'ba%') and (`key` < '70')"

The examples above demonstrate the query map DSL reasonably well, but one should refer to the docstring for the query function for an authoritative list of comparisons, information about return values, etc., and to the SDB query documentation for details on semantics.


query performs a single request to SDB, which can potentially return only a portion of a query’s results. If you want to obtain all of the results matching a query, use the query-all function, which will lazily page through results of a query for you as you consume them, using the :next-token metadata provided by the seqs returned by query:

=> (batch-put-attrs config "demo" (for [x (range 5000)]
                                    {::sdb/id x :key x}))
=> (count (query-all config `{select id from demo}))

Note that query-all will automatically bump the :limit of a query up to the SDB maximum of 2500 (the default is 100) to minimize the number of network requests to obtain the full resultset.

Data Encoding Schemes

The configuration map you provide as the first argument to most of Rummage’s functions defines how data is encoded to strings for storage in SDB and how strings retrieved from SDB are decoded to non-string item keys and values. The encoding portion of the configuration map is also used to encode keys and values to strings when constructing string queries from the query maps accepted by query.

Configuration maps should contain the following encoding-related functions:


encodes item IDs (values in item maps mapped to ::sdb/id) to strings


the dual of the :encode-id function; decodes string item IDs retrieved from SDB, potentially to some other type of value


encodes item keys and values to attribute name and value strings. Must provide a 1-arg arity that will receive item keys and return a corresponding encoded string, and a 2-arg arity that will receive an item key and value, and return a vector containing the corresponding encoded strings


the dual of the :encode function; decodes string item names and values retreived from SDB

If your needs warrant it, you can write your own encoding and decoding functions and use them in configuration maps with Rummage. However, the cemerick.rummage.encoding namespace provides a number of configuration maps (and functions that return configuration maps) implementing encoding strategies suitable for (hopefully) most datasets that you can use without modification to encode your data for storage in SDB. These are described in detail here:


The simpliest possible encoding scheme, all-strings converts all outgoing data to strings using str, and passes through all retrieved item strings unchanged.

=> (def config (assoc enc/all-strings :client client))
=> (put-attrs config "demo" {::sdb/id "all-strings" :keyword 42
                             "name" :value :date (java.util.Date.)})
=> (get-attrs config "demo" "all-strings")
{":keyword" "42", ":date" "Wed Mar 09 12:39:57 EST 2011",
 "name" ":value", ::sdb/id "all-strings"}

This can be very useful when working with SDB data that has been stored / needs to be accessible from other SDB clients.


This encoding scheme stores all attribute values as strings just like all-strings, but provides for round-tripping of keywords as attribute names.

=> (def config (assoc enc/keyword-strings :client client))
=> (put-attrs config "demo" {::sdb/id "keyword-strings" :keyword 42
                             :name :value :date (java.util.Date.)})
=> (get-attrs config "demo" "keyword-strings")
{:date "Wed Mar 09 12:41:31 EST 2011", :keyword "42",
 :name ":value", ::sdb/id "keyword-strings"}

Note that an error will occur if you attempt to store items that have non-keyword keys using the this configuration.


all-prefixed-config is a function that returns a configuration map that use a defined set of prefixed type tags along with roundtrippable string encodings to store item data of many different types, and restore that item data with its original types upon retrieval.

=> (def config (assoc (enc/all-prefixed-config) :client config))
=> (put-attrs config "demo" {::sdb/id "prefixed-data" :keyword 42
                             :ns/name :value :date (java.util.Date.)
                             true false "float value" 108.6})
(get-attrs config "demo" "prefixed-data")
{:keyword 42, true false, "float value" 108.6,
 :date #<Date Thu Mar 10 10:01:04 EST 2011>,
 :ns/name :value, :cemerick.rummage/id "prefixed-data"}

Notice that the retrieved data has the same types as the stored data; in fact, the map returned here by get-attrs is equal to the map stored in SDB by put-attrs (as in, (= stored-map retreived-map)). So you can see what the attributes look like in their encoded form, let’s take a look at that item using the all-strings config (which, remember, does no decoding of string data retrieved from SDB):

(get-attrs (assoc enc/all-strings :client client) "demo" "s:prefixed-data")
{"k:keyword" "i:4611686018427387945", "z:true" "z:false",
 "s:float value" "f:5 002 1.0860000000000000", "k:date" "D:2011-03-10T15:04:05.419+0000",
 "k:ns/name" "k:value", :cemerick.rummage/id "s:prefixed-data"}

The supported types and prefixes used by configurations produced by all-prefixed-config are controlled by the formatting map provided as an argument to all-prefixed-config; a default formatting map is used if none is explicitly provided.


Since all stored values have a type prefix, and like queries may only have a wildcard at the beginning or end of the query value, values stored using this configuration cannot be successfully queried with a prefix like pattern (e.g. (like :attr-name "%foo"))


name-typed-values-config is a function that returns a configuration map.

This scheme is very similar to all-prefixed-config, but restricts the use of type prefixes to attribute names (specifically, to namespaces of keywords used as attribute keys) and requires that all values for each attribute are of the same type, indicated by the attribute name’s prefix. Within that structure, all values are stored using roundtrippable string encodings and are restored to their original types upon retrieval.

=> (def config (assoc (enc/name-typed-values-config) :client client))
=> (put-attrs config "demo" {::sdb/id "name-typed-values" :i/keyword 42
                             :k/name :value :D/date (java.util.Date.)
                             :z/true false :f/float-value 108.6})
=> (get-attrs config "demo" "name-typed-values")
{:i/keyword 42, :D/date #<Date Thu Mar 10 10:20:15 EST 2011>, :k/name :value,
 :z/true false, :f/float-value 108.6, :cemerick.rummage/id "name-typed-values"}

Notice that, in contrast to all-prefixed-config, values have no prefixes. The type metadata for each attribute is stored instead in the namespaces of the keywords used as attribute keys. (An exception will occur if you attempt to store an attribute that does not use a namespaced keyword for a key.) Let’s take a look at how this translates into the strings stored in SDB:

(get-attrs (assoc enc/all-strings :client client) "demo" "s:name-typed-values")
{"k:i/keyword" "4611686018427387945", "k:D/date" "2011-03-10T15:20:15.806+0000",
 "k:k/name" "value", "k:z/true" "false", "k:f/float-value" "5 002 1.0860000000000000",
 :cemerick.rummage/id "s:name-typed-values"}

Because no prefixes are used in the encoded values, prefixed like queries will work, in contrast to all-prefixed-config. The tradeoff is that item keys must all be namespaced keywords, with namespaces corresponding to the prefixes specified in the formatting map.

The supported types and prefixes used by configurations produced by name-typed-values-config are controlled by the formatting map provided as an argument to name-typed-values-config; a default formatting map is used if none is explicitly provided.

Fixed schemas via cemerick.rummage.encoding/fixed-domain-schema


  1. your dataset has attributes whose values are of constant types, and

  2. you can specify those attribute names and their corresponding types ahead of time,

then you can use configuration maps produced by the fixed-domain-schema function, which avoids all of the shortcomings of all-prefixed-config-derived configurations (e.g. breaks prefixed like queries) and name-typed-values-config-derived configurations (e.g. requiring attribute keys to be namespaced keywords).

=> (def config (assoc
                 (enc/fixed-domain-schema {:name String
                                           :birthday java.util.Date
                                           "age" Integer
                                           true Boolean})
                 :client client))
=> (put-attrs config "demo" {::sdb/id "fixed-domain-schema"
                             :birthday (java.util.Date.)
                             "age" 26
                             true false})
=> (get-attrs config "demo" "fixed-domain-schema")
{"age" 26, true false, :birthday #<Date Thu Mar 10 10:45:25 EST 2011>,
 :cemerick.rummage/id "fixed-domain-schema"}

Again, the items are retrieved and decoded such that their types are the same as those in the map provided to put-attrs. Let’s take a look at how those attributes are encoded for storage:

=> (get-attrs (assoc enc/all-strings :client client) "demo" "s:fixed-domain-schema")
{"s:age" "4611686018427387929", "z:true" "false",
 "k:birthday" "2011-03-10T15:45:25.925+0000", :cemerick.rummage/id "s:fixed-domain-schema"}

As you can see, item keys and the item ID itself are encoded with prefixes as in all-prefixed-config and name-typed-values-config, but the encoded attribute values have no prefixes.

Of course, we’re using SDB, you can add new "columns" to the data that can be encoded by a fixed-domain-schema configuration by obtaining a new configuration map using a different "schema" map provided to the fixed-domain-schema function:

=> (put-attrs config "demo" {::sdb/id "fixed-domain-schema"
                             :unknown-key 42})
#<java.lang.IllegalArgumentException: No formatter available for prefix :unknown-key>
=> (def config (assoc
                 (enc/fixed-domain-schema {:name String
                                           :birthday java.util.Date
                                           "age" Integer
                                           true Boolean
                                           ;; adding new slot ("column"?) to schema
                                           :unknown-key Integer})
                 :client client))
=> (put-attrs config "demo" {::sdb/id "fixed-domain-schema"
                             :unknown-key 42})
=> (get-attrs config "demo" "fixed-domain-schema")
{"age" 26, :unknown-key 42, true false,
 :birthday #<Date Thu Mar 10 10:45:25 EST 2011>, :cemerick.rummage/id "fixed-domain-schema"}

Depending on your dataset, application requirements, and personal preferences, this process of mapping attribute keys (:name, "age", etc) to value types – similar to how tables are defined in relational databases – is likely either unreasonably restrictive or comfortingly familiar.

Formatting Maps


Default Formatting Map

cemerick.rummage.encoding/prefix-formatting is the default formatting map used by the configuration-map-producing functions in that namespace ( name-typed-values-config, all-prefixed-config, and fixed-domain-schema). It contains mappings for the following types (with prefixes for those encoding schemes that use them):

Table 1. Default formatting map’s types
Type Prefix Example value Example encoded value (does not include prefix) Notes













Maximum absolute value: (/ Long/MAX_VALUE 2) (stored in cemerick.rummage.encoding/max-abs-integer)





Always decodes to a concrete long.




"5 002 1.0860000000000000"




"5 002 1.0860000000000000"

Always decodes to a concrete double.






(URL. "")






Dates are always normalized to UTC (which ensures that their encoded forms sort properly when compared lexicographically) and encoded using ISO 8601

Building Rummage

Have maven. From the command line:

$ mvn clean install

The tests are all live, so:

  1. They create and delete domains (though with unique names).

  2. They aren’t written to be particularly efficient w.r.t. SDB usage. If you do decide to run the tests, the associated fees should be trivial (or nonexistent if your account is under the SDB free usage cap).

In any case, you are so warned. Make a new AWS account dedicated to testing if you’re concerned on either count.

Since the tests are live, you either need to add your AWS credentials to your ~/.m2/settings.xml file as properties, or specify them on the command line using -D switches:

$ mvn -Daws.secret-key=YYYYYYY clean install

Or, you can skip the tests entirely:

$ mvn -Dmaven.test.skip=true clean install

In any case, you’ll find a built .jar file in the target directory, and in its designated spot in ~/.m2/repository (assuming you ran install rather than e.g. package).


  1. Eliminate Maven

  2. Add/flesh out docstrings for the entire API + the stuff in encoding

  3. Add notes on offline / local use (documented on rhickey’s readme)

  4. Complete documentation in sections marked as TODO here

  5. The default encoding for URLs doesn’t seem great — they don’t sort lexicographically in a particularly useful way. Maybe something like "TLD domain [sub-domain sub-domain2 …] path". I vaguely recall there being some standard encoding like this for e.g. handling of dates in hadoop, etc. Not in a rush to run into the pit that is URL encoding/parsing, though.

  6. determine whether a default encoding configuration should be provided; that is, if a bare client is provided to e.g. query or put-attrs, should we just use one of the encoding schemes in cemerick.rummage.encoding? If so, which one? I’m all for simplicity, good defaults, and convention allowing for configuration, but I don’t think any reasonable default exists (or perhaps I just haven’t thought of one yet).

Need Help?

Ping cemerick on freenode irc or twitter if you have questions or would like to contribute patches.


Copyright © 2011 Chas Emerick, Rich Hickey, and other contributors

Licensed under the EPL. (See the file epl-v10.html.)

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