CachePolicy (SmartClient Enterprise Server API 15.0d (2025-09-14))

java.lang.Object
- com.isomorphic.servlet.CachePolicy

```
public class CachePolicy
extends java.lang.Object
```
Provides all standard Cache-Control HTTP header response directives and some presets for most common usages.

Field Summary

Fields
Modifier and Type	Field and Description
`static CachePolicy`	`IMMUTABLE` Standard "immutable" response directive
`static CachePolicy`	`ISC_DISABLE_CACHE` Preset combination of "no-cache, max-age=0" response directives to completely disable caching.
`static CachePolicy`	`ISC_DISABLE_SHARED_CACHE` Preset (alias) using "private" response directive to disable shared cache only
`static CachePolicy`	`ISC_PERMANENT_CACHE` Preset using "max-age=31536000" (one year) serving as "permanent" caching
`static CachePolicy`	`MUST_REVALIDATE` Standard "must-revalidate" response directive
`static CachePolicy`	`MUST_UNDERSTAND` Standard "must-understand" response directive
`static CachePolicy`	`NO_CACHE` Standard "no-cache" response directive
`static CachePolicy`	`NO_STORE` Standard "no-store" response directive
`static CachePolicy`	`NO_TRANSFORM` Standard "no-transform" response directive
`static CachePolicy`	`PRIVATE` Standard "private" response directive
`static CachePolicy`	`PROXY_REVALIDATE` Standard "proxy-revalidate" response directive
`static CachePolicy`	`PUBLIC` Standard "public" response directive
`static CachePolicy`	`STALE_IF_ERROR` Standard "stale-if-error" response directive
`static CachePolicy`	`STALE_WHILE_REVALIDATE` Standard "stale-while-revalidate" response directive

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static CachePolicy`	`MAX_AGE(int value)` Standard "max-age=N" response directive
`static CachePolicy`	`S_MAXAGE(int value)` Standard "s-maxage=N" response directive

- Field Detail
  - NO_CACHE
```
public static CachePolicy NO_CACHE
```
    Standard "no-cache" response directive
  - NO_STORE
```
public static CachePolicy NO_STORE
```
    Standard "no-store" response directive
  - NO_TRANSFORM
```
public static CachePolicy NO_TRANSFORM
```
    Standard "no-transform" response directive
  - MUST_REVALIDATE
```
public static CachePolicy MUST_REVALIDATE
```
    Standard "must-revalidate" response directive
  - PROXY_REVALIDATE
```
public static CachePolicy PROXY_REVALIDATE
```
    Standard "proxy-revalidate" response directive
  - MUST_UNDERSTAND
```
public static CachePolicy MUST_UNDERSTAND
```
    Standard "must-understand" response directive
  - PRIVATE
```
public static CachePolicy PRIVATE
```
    Standard "private" response directive
  - PUBLIC
```
public static CachePolicy PUBLIC
```
    Standard "public" response directive
  - IMMUTABLE
```
public static CachePolicy IMMUTABLE
```
    Standard "immutable" response directive
  - STALE_WHILE_REVALIDATE
```
public static CachePolicy STALE_WHILE_REVALIDATE
```
    Standard "stale-while-revalidate" response directive
  - STALE_IF_ERROR
```
public static CachePolicy STALE_IF_ERROR
```
    Standard "stale-if-error" response directive
  - ISC_DISABLE_CACHE
```
public static CachePolicy ISC_DISABLE_CACHE
```
    Preset combination of "no-cache, max-age=0" response directives to completely disable caching.
  - ISC_DISABLE_SHARED_CACHE
```
public static CachePolicy ISC_DISABLE_SHARED_CACHE
```
    Preset (alias) using "private" response directive to disable shared cache only
  - ISC_PERMANENT_CACHE
```
public static CachePolicy ISC_PERMANENT_CACHE
```
    Preset using "max-age=31536000" (one year) serving as "permanent" caching
- Method Detail
  - MAX_AGE
```
public static CachePolicy MAX_AGE(int value)
```
    Standard "max-age=N" response directive
    
    Parameters:
    
    value - int N seconds
  - S_MAXAGE
```
public static CachePolicy S_MAXAGE(int value)
```
    Standard "s-maxage=N" response directive
    
    Parameters:
    
    value - int N seconds

Class CachePolicy

Field Summary

Method Summary

Field Detail

NO_CACHE

NO_STORE

NO_TRANSFORM

MUST_REVALIDATE

PROXY_REVALIDATE

MUST_UNDERSTAND

PRIVATE

PUBLIC

IMMUTABLE

STALE_WHILE_REVALIDATE

STALE_IF_ERROR

ISC_DISABLE_CACHE

ISC_DISABLE_SHARED_CACHE

ISC_PERMANENT_CACHE

Method Detail

MAX_AGE

S_MAXAGE