CatalogStoreHolder (Flink : Table : Common 2.1.0 API)

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

All Implemented Interfaces:

AutoCloseable
```
@Internal
public class CatalogStoreHolder
extends Object
implements AutoCloseable
```
A holder for a CatalogStore instance and the necessary information for creating and initializing Catalog instances, including a CatalogStoreFactory, a ReadableConfig instance, and a ClassLoader instance. This class provides automatic resource management using the AutoCloseable interface, ensuring that the catalog-related resources are properly closed and released when they are no longer needed.
A CatalogStoreFactory may create multiple CatalogStore instances, which can be useful in SQL gateway scenarios where different sessions may use different catalog stores. However, in some scenarios, a single CatalogStore instance may be sufficient, in which case the CatalogStoreFactory can be stored in the holder to ensure that it is properly closed when the CatalogStore is closed.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class CatalogStoreHolder.Builder
Builder for a fluent definition of a CatalogStoreHolder.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`CatalogStore`	`catalogStore()`
`ClassLoader`	`classLoader()`
`void`	`close()`
`org.apache.flink.configuration.ReadableConfig`	`config()`
`static CatalogStoreHolder.Builder`	`newBuilder()`
`void`	`open()`

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

Method Detail

newBuilder

public static CatalogStoreHolder.Builder newBuilder()

catalogStore
```
public CatalogStore catalogStore()
```

config

public org.apache.flink.configuration.ReadableConfig config()

classLoader
```
public ClassLoader classLoader()
```

open
```
public void open()
```

close
```
public void close()
           throws Exception
```
Specified by:

close in interface AutoCloseable

Throws:

Exception