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Base Library: Data Structure

This library cluster has 82 classes.

Various hash-table, array, list, chain and linear types

Hash Tables

HASH_TABLE
   EL_HASH_TABLE
         EL_PROCEDURE_TABLE
   EL_HASH_SET
   EL_FUNCTION_RESULT_TABLE
   EL_CODE_TABLE
      EL_UNIQUE_CODE_TABLE
   EL_GROUP_TABLE
   EL_TYPE_TABLE

Linear Chains

EL_LINEAR*
   EL_CHAIN*
      EL_ARRAYED_LIST
         EL_SUB_APPLICATION_LIST
         EL_ARRAYED_MAP_LIST
            EL_SORTABLE_ARRAYED_MAP_LIST*
               EL_VALUE_SORTABLE_ARRAYED_MAP_LIST
               EL_KEY_SORTABLE_ARRAYED_MAP_LIST
         EL_IMPORTABLE_ARRAYED_LIST
         EL_SORTABLE_ARRAYED_LIST
         EL_QUERYABLE_ARRAYED_LIST
         EL_UNIQUE_ARRAYED_LIST
         EL_CALL_SEQUENCE

Other Classes

Sub-array abstraction and byte array
Repeated numeric encoding
Tuple initialization
Object initialization abstractions
Software versioning

Directory: library/base/data_structure

. /kernel/initialization

. /list/queryable/condition

. /list/support

. /map-list

. /set

arrays

EL_BYTE_ARRAY

Array of 8 bit bytes: TO_SPECIAL [NATURAL_8]

EL_PADDED_BYTE_ARRAY

bytes with a count equal to muliple of a_block_size. Creation area arguments that do not fit exactly are padded with bytes of value equal to the padding count.

Sub arrays implemented using shared memory areas rather than copied memory area. For large arrays, subarray memory copies can incurr a significant performance overhead. Using shared memory subarrays can in some applications reduce execution time by as much as 50%. (hard to believe I know)

Sub array can be referenced using either lower to upper indexes of parent array or 1 based index.

EL_TUPLE_TYPE_ARRAY

Array of TUPLE parameter types: ARRAY [TYPE [ANY]]

hash_table

EL_CACHE_TABLE

Table to cache results of new_item creation procedure

Further Information

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EL_CODE_TABLE

Code table

EL_COUNTER_TABLE

Table to count number of attempts to insert key with put routine

EL_FUNCTION_RESULT_TABLE

Object for caching the result of a call to function new_item for each generating type of the generic parameter TARGET.

EL_GROUP_TABLE

Table of grouped items defined by key function to make procedure

Further Information

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EL_HASH_TABLE

Hash table

Further Information

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EL_PROCEDURE_TABLE

Table of procedures with latin-1 encoded keys

Further Information

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EL_TYPE_TABLE

Caches objects associated with a type

EL_UNIQUE_CODE_TABLE

Unique code table

EL_ZSTRING_TOKEN_TABLE

A table of unique words used to create tokenized strings that can be reassembled into the original string.

Further Information

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kernel

EL_FUNCTION_ID

Function id

EL_KEY_IDENTIFIABLE

Key identifiable

EL_READABLE

Abstraction for objects that have a function returning all the basic types and strings

EL_SHARED_CELL

Shared cell

EL_STATE_MACHINE

State machine

EL_WRITEABLE

Abstraction for objects that have a procedure accepting all the basic types and strings

kernel/access

EL_ANY_SHARED

Ancestor for classes that primarly provide access to a shared instance of a class

Further Information

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EL_COMMAND_CLIENT

Provides access to make routines of classes descended from EL_COMMAND

Further Information

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EL_CONFORMING_SINGLETON

Conforming singleton

Further Information

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EL_MODULE

Ancestor for classes that provide access to a shared instance of a stateless class that is primarly intended to house some category of routines.

EL_OS_IMPLEMENTATION

Parent of classes that implements OS specific details of abstract interface

EL_SHARED_SINGLETONS

Shared table of singleton objects

Further Information

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EL_SINGLETON

Allow implementation of shared singleton for type G. See class EL_SHARED_SINGLETONS for details.

if descendant_allowed is enabled then item may also be a type conforming to G

Further Information

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EL_SINGLETON_TABLE

Thread safe table

EL_SOLITARY

Object is a solitary globally shared instance, i.e. a singleton

Further Information

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kernel/command

EL_COMMAND

Command

Further Information

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EL_DEFAULT_COMMAND

Default do nothing command

kernel/initialization

EL_DEFERRED_CELL

A data cell with deferred initialization of the item

EL_INITIALIZEABLE

Interface to object with initialized state

Further Information

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EL_LAZY_ATTRIBUTE

Detachable object attribute that is created only when needed

Further Information

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EL_LAZY_ATTRIBUTE_2

A second object attribute that is created only if it is needed. This is a duplicate of EL_LAZY_ATTRIBUTE to solve any inheritance conflict.

EL_MAKEABLE

Object that is initializeable by a call to make

Further Information

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EL_MAKEABLE_FROM_STRING

Makeable from string

Further Information

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EL_PRECURSOR_MAP

Tracks whether a routine has been called already or not during make precursor calls.

Further Information

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EL_PRECURSOR_MAP_16

Tracks whether a routine has been called already or not during make precursor calls. This is a variation of class EL_PRECURSOR_MAP but with the done_bitmap defined as NATURAL_16 instead of NATURAL_32.

EL_PRECURSOR_MAP_64

EL_SHARED_INITIALIZER

Shared objects conforming to EL_INITIALIZEABLE

Further Information

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kernel/platform

EL_CROSS_PLATFORM

Cross platform

EL_PLATFORM_IMPLEMENTATION

Platform dependent implementation

kernel/routine

EL_PREDICATE

Predicate

EL_PROCEDURE

Procedure identifier based on address of Eiffel routine dispatcher As it is not possible to compare agent references this serves as a workaround allowing you to determine whether two agents refer to the same procedure.

kernel/tuple

EL_MODULE_TUPLE

Shared access to routines of class EL_TUPLE_ROUTINES

Further Information

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EL_TUPLE_ROUTINES

Routines accessible from once routine Tuple in EL_MODULE_TUPLE

EL_TUPLE_TYPE_LIST

List of tuple element types conforming to generic type T

kernel/uuid

EL_UUID

Universally unique identifier

Further Information

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EL_UUID_FACTORY

Uuid factory

list

EL_CHAIN

Sequence of items

Further Information

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EL_CODE_VALUE_LIST

Code value list

EL_LINEAR

Linear

EL_REPEATED_NUMERIC_LIST

Object that uses run length encoding to data compress a sequence of numeric values that tend to repeat a lot.

list/arrayed

EL_ARRAYED_LIST

Arrayed list

Further Information

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EL_CALL_SEQUENCE

Call sequence

EL_SEQUENTIAL_INTERVALS

Sequence of consecutive INTEGER_32 intervals (compressed as INTEGER_64's for better performance)

<< a1..b1, a2..b2, .. >>

such that b(n) < a(n + 1)

Further Information

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EL_SORTABLE_ARRAYED_LIST

Sortable arrayed list

Further Information

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EL_UNIQUE_ARRAYED_LIST

List of unique hashable items

list/queryable

EL_QUERYABLE_ARRAYED_LIST

An arrayed list implementation of EL_QUERYABLE_CHAIN

Further Information

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EL_QUERYABLE_CHAIN

A chain that is queryable using query condition objects that can be combined using the Eiffel logical operators: and, or, not.

Further Information

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EL_QUERY_CONDITION_FACTORY

Supporting class for lists implementing EL_QUERYABLE_CHAIN Use it to create various compound query conditions and derive a query condition object from an agent predicate.

Further Information

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Click on class link to see tests and client examples.