MemoryStore Class

Store class that uses a hierarchy of list objects, thus all data will be held in main memory.

Details

MemoryStore for Zarr

Super class

pizzarr::Store -> MemoryStore

Public fields

root

The root list for the store.

Methods

Public methods

• MemoryStore$new()

• MemoryStore$get_parent()

• MemoryStore$get_item()

• MemoryStore$set_item()

• MemoryStore$contains_item()

• MemoryStore$listdir()

• MemoryStore$rmdir()

• MemoryStore$clone()

Inherited methods

• pizzarr::Store$close()
• pizzarr::Store$get_consolidated_metadata()
• pizzarr::Store$is_erasable()
• pizzarr::Store$is_listable()
• pizzarr::Store$is_readable()
• pizzarr::Store$is_writeable()
• pizzarr::Store$rename()

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Method new()

Create a new memory store.

Usage

MemoryStore$new()

Returns

A new MemoryStore object.

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Method get_parent()

Get the parent of an item.

Usage

MemoryStore$get_parent(item)

Arguments

item

The item key.

Returns

A list with the keys parent and key.

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Method get_item()

Get an item from the store.

Usage

MemoryStore$get_item(item = NA)

Arguments

item

The item key.

Returns

The item data in a vector of type raw.

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Method set_item()

Set an item in the store.

Usage

MemoryStore$set_item(item, value)

Arguments

item

The item key.

value

The item value as a vector of type raw.

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Method contains_item()

Determine whether the store contains an item.

Usage

MemoryStore$contains_item(item)

Arguments

item

The item key.

Returns

A boolean value.

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Method listdir()

list the store directory

Usage

MemoryStore$listdir(key = NA)

Arguments

key

character key

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Method rmdir()

remove a path within a Store

Usage

MemoryStore$rmdir(item)

Arguments

item

character item

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Method clone()

The objects of this class are cloneable with this method.

Usage

MemoryStore$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.