AbstractCatalogStore (Flink : 2.0-preview1 API)

java.lang.Object
- org.apache.flink.table.catalog.AbstractCatalogStore

All Implemented Interfaces:

CatalogStore

Direct Known Subclasses:

FileCatalogStore, GenericInMemoryCatalogStore
```
@Internal
public abstract class AbstractCatalogStore
extends Object
implements CatalogStore
```
The AbstractCatalogStore class is an abstract base class for implementing a catalog store.

Field Summary

Fields
Modifier and Type Field Description

protected boolean isOpen
Catalog store state.

Constructor Summary

Constructors
Constructor Description

AbstractCatalogStore()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`checkOpenState()`	Checks whether the catalog store is currently open.
`void`	`close()`	Closes the catalog store.
`void`	`open()`	Opens the catalog store.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.flink.table.catalog.CatalogStore
contains, getCatalog, listCatalogs, removeCatalog, storeCatalog

- Field Detail
  - isOpen
```
protected boolean isOpen
```
    Catalog store state.
- Constructor Detail
  - AbstractCatalogStore
```
public AbstractCatalogStore()
```
- Method Detail
  - open
```
public void open()
```
    Opens the catalog store.
    
    Specified by:
    
    open in interface CatalogStore
  - close
```
public void close()
```
    Closes the catalog store.
    
    Specified by:
    
    close in interface CatalogStore
  - checkOpenState
```
protected void checkOpenState()
```
    Checks whether the catalog store is currently open.
    
    Throws:
    
    IllegalStateException - if the store is closed