Go code-generator for structures

Install everything by go get:

go get -u github.com/reddec/memdata/cmd/...

RB-Tree

go get -u github.com/reddec/memdata/cmd/rbtree

Adapted version from https://github.com/emirpasic/gods#redblacktree for code generating.

• Optimization for number-based key
• Supports .Cmp method for complex objects
• Exposed Lookup method for manipulating value on-place

CLI

Usage:
  rbtree [OPTIONS]

Application Options:
      --package= package name in generated file (default: tree) [$PACKAGE]
      --import=  imports included to the generated file [$IMPORTS]
      --type=    tree type name (default: tree) [$TYPENAME]
      --key=     key typename (default: int64) [$KEY]
      --value=   value typename [$VALUE]
      --cmp      user Cmp method to compare keys

Help Options:
  -h, --help     Show this help message

Memory typed storage

go get -u github.com/reddec/memdata/cmd/memdata

Generates interfaces and default implementation to store user-defined objects. Allows to specify any storage.

• Default in-memory implementation
• Vendor independent storage drivers
• Statically typed, no interface{} and runtime casts
• Supports synchronized and non-synchronized access
• Separated read/write locks (multiple readers, one writer) in transactional mode

See examples in generator/model/example folder for yaml definition.

YAML

YAML files are required to define user models. There are two types of configuration files:

1. project file ('main' yaml)
2. model files (optional, only if you prefer separate model definition from project configuration)

project yaml (see generator/model/example/sample.yaml)

• name - name of main generated structure
• package - result package name
• synchronized (boolean, default false) - generate global locks or not
• imports (map of alias->import path) - use specified imports for lookup of custom types
• models (list of model definition) - list of user models
• include_models (list of string) - list of files of model definition relative to the current file
• storage_ref (bool, default false) - add storage reference to the generated models
• transactional (boolean, default false) - copy changes and apply as batch on commit

model yaml / definition

• name - name of model/structure
• fields (map of string->string) - map of fields and types
  • if field names starts from $ (dollar sign) it's mean it is reference to another model (aka alias for ref field)
  • if field ends with ... (three dots) it's mean it is multiple reference to another model (aka alias for many field)
• indexed (required, string) - field name that unique identified model, can be omitted if key specified (see below)
• ref (map, string->string) - field name and name of another model as reference (many-to-one)
• many (map, string->string) - field name and name of another model as multiple reference (many-to-many); think about it as array of ref to another models
• sequence (list of string) - name fields that acts as sequences with automatic increment after insertion (field should be int64 and defined in fields)
• key (string) - name primary key in model. Automatically defines indexed and sequence (if key is number)

CLI

 Usage:
   memdata [OPTIONS] file
 
 Help Options:
   -h, --help  Show this help message
 
 Arguments:
   file:       path to project YAML file