QueryContextCache (snowflake-jdbc 3.14.0 API)

java.lang.Object
- net.snowflake.client.core.QueryContextCache

```
public class QueryContextCache
extends Object
```
Most Recently Used and Priority based cache. A separate cache for each connection in the driver.

Constructor Summary

Constructors
Constructor Description

QueryContextCache(int capacity)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clearCache()`	Clear the cache.
`void`	`deserializeQueryContextDTO(QueryContextDTO queryContextDTO)`	Deserialize the QueryContext cache from a QueryContextDTO object.
`void`	`deserializeQueryContextJson(String data)`
`QueryContextDTO`	`serializeQueryContextDTO()`	Serialize the QueryContext cache to a QueryContextDTO object, which can be serialized to JSON automatically later.

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

- Constructor Detail
  - QueryContextCache
```
public QueryContextCache(int capacity)
```
    Constructor.
    
    Parameters:
    
    capacity - Maximum capacity of the cache.
- Method Detail
  - clearCache
```
public void clearCache()
```
    Clear the cache.
  - deserializeQueryContextJson
```
public void deserializeQueryContextJson(String data)
```
    Parameters:
    
    data - : the QueryContext Object serialized as a JSON format string
  - deserializeQueryContextDTO
```
public void deserializeQueryContextDTO(QueryContextDTO queryContextDTO)
```
    Deserialize the QueryContext cache from a QueryContextDTO object. This function currently is only used in QueryContextCacheTest.java where we check that after serialization and deserialization, the cache is the same as before.
  - serializeQueryContextDTO
```
public QueryContextDTO serializeQueryContextDTO()
```
    Serialize the QueryContext cache to a QueryContextDTO object, which can be serialized to JSON automatically later.