cache
- Topics:
- Dynamic Media Classic,SDK/API
CREATED FOR:
- Developer
- User
Cache control. Lets you selectively disable client-side caching (browser, proxy servers, network caching systems) and caching in the internal Platform Server cache.
cache= *
cacheControl*
cache= *
clientControl*, *
serverControl*
cacheControl | on | off | validate |
clientControl | on | off |
serverControl | on | off |
If only one cacheControl
value is specified, it is applied to both client and server caches.
The ’ validate
’ keyword allows updating server cache entries after texture or vignette files have changed, without having to wait for the cache entry to expire automatically. Client caching is not affected by this command.
If specified in a nested request, cache=on
enables persistent, server-side caching of the image generated by the nested request. Take care that you enable caching for nested requests only when the same nested request is called repeatedly with the same parameters.
Properties
May occur anywhere in the request. Ignored when the request does not return a reply image. The property clientControl
is ignored when client-side caching is disabled by the material catalog (if attribute::Expiration
has a negative value). The property serverControl
is ignored if server caching is disabled ( PlatformServer::cache.enable
).
Default
cache=on,on
For HTTP requests, cache=off
for nested/embedded requests.
See also
Experience Manager
- Dynamic Media Image Serving and Image Rendering API Home
- About this release
- System requirements and prerequisites
- Disk space requirements and recommendations
- Restrictions and known issues
- Technical support
- Document conventions
- Installation
- Image Serving API
- Image Serving API
- Intended audience
- Image Serving components
- Configuration and administration
- Serving static (non-image) contents
- Troubleshooting
- HTTP protocol reference
- HTTP protocol reference overview
- HTTP protocol introduction
- Syntax and features
- Syntax and features
- Image Serving HTTP protocol basic syntax
- Image Serving HTTP protocol command
- Layering
- Layer effects
- Request nesting and embedding
- Substitution variables
- Command macros
- Image catalogs
- Object ID translation
- Text string localization
- SVG support
- Request preprocessing
- Image maps
- Image Serving color management
- Image Serving HTTP encoding
- Request locking
- Request obfuscation
- Watermarks
- Serving static (non-image) content
- Media set requests
- Text formatting
- Data types
- Command reference
- Command reference overview
- align
- anchor
- bfc
- bgc
- bgColor
- blendMode
- cache
- clipPath
- clipXPath
- color
- crop
- cropPathE
- defaultImage
- dpr
- effect
- effectMask
- extend
- fit
- flip
- fmt
- hei
- hide
- icc
- iccEmbed
- id
- imageSet
- jpegSize
- layer
- locale
- map
- mask
- maskUse
- network
- op_blur
- op_brightness
- op_colorbalance
- op_colorize
- op_contrast
- op_grow
- op_growMask
- op_growMaskR
- op_hue
- op_invert
- op_noise
- op_saturation
- op_sharpen
- op_usm
- op_usmR
- opac
- origin
- pathAttr
- pathEmbed
- perspective
- pos
- printRes
- pscan
- qlt
- quantize
- rect
- req
- res
- resMode
- rgn
- rotate
- scale
- scl
- size
- src
- template
- text
- textAngle
- textAttr
- textFlowPath
- textFlowXPath
- textPath
- textPs
- type
- wid
- xmpEmbed
- Response data
- Server behavior
- Templates
- FXG server protocol reference
- Image catalog reference
- Attributes
- Attributes reference
- AllowDirectAccess
- AllowDirectUrls
- ApplyEffectMask
- AudioBitRate
- Bfc
- BkgColor
- CacheValidationPolicy
- ClientAddressFilter
- CatalogFile
- DefaultExpiration
- DefaultExt
- DefaultFont
- DefaultImage
- DefaultImageMode
- DefaultLocale
- DefaultPix
- DefaultThumbPix
- DigimarcId
- DigimarcInfo
- ErrorImage
- ErrorDetail
- Expiration
- FontMapFile
- FullMatch
- HttpAppleStreamingContext
- HttpFlashStreamingContext
- IccBlackPointCompensation
- IccDither
- IccProfileCmyk
- IccProfileGray
- IccProfileMapFile
- IccProfileRgb
- IccProfileSrcCmyk
- IccProfileSrcGray
- IccProfileSrcRgb
- IccRenderIntent
- JpegQuality
- LocaleMap
- LocaleStrMap
- MacroFile
- MaxPix
- NonImgExpiration
- PublishInfo
- PrintResolution
- RequestLock
- RequestObfuscation
- ResMode
- Resolution
- RootId
- RootPath
- RootUrl
- RuleSetFile
- SavePath
- StaticContentCatalogFile
- StaticContentRootPath
- SvgCatalogFile
- SynthesizeFontStyles
- ThumbBkgColor
- ThumbHorizAlign
- ThumbRes
- ThumbType
- ThumbVertAlign
- TimeStamp
- TotalStreamBitRate
- TrustedDomains
- UseLastModified
- VideoBitRate
- VideoSize
- Watermark
- Image/SVG data reference
- Macro definition
- Font map
- ICC profile map reference
- Rule set reference
- Image server proxy
- Responsive Static Image Library
- Image Rendering API
- Image Rendering API
- Configuration
- Server administration
- Server administration
- Server administration preface
- Server administration overview
- Configuring and managing the server
- Configuration settings reference
- HTTP protocol reference
- HTTP protocol reference
- Introduction
- HTTP protocol syntax and features
- HTTP protocol syntax and features
- Image Rendering HTTP protocol basic syntax
- Image Rendering HTTP protocol command overview
- Vignettes
- Materials
- Advanced Render effects
- Request nesting and embedding
- Material catalogs
- Request pre-processing *
- Custom variables
- Command macros *
- Image Rendering color management *
- Color values
- Image Rendering HTTP encoding
- HTTP protocol command reference
- HTTP protocol response data
- Material catalog
- Material catalog
- Introduction
- Material catalog overview
- Attributes reference
- Attributes reference
- AllowDirectURLs
- CacheValidationPolicy
- CatalogFile
- ClientAddressFilter
- DefaultPix
- ErrorDetail
- ErrorImage
- Expiration
- Format
- IccBlackPointCompensation
- IccDither
- IccProfileCmyk
- IccProfileGray
- IccProfileMapFile
- IccProfileRgb
- IccProfileSrcCmyk
- IccProfileSrcGray
- IccProfileSrcRgb
- IccRenderIntent
- JpegQuality
- MacroFile
- MaxPix
- OnFailObj
- OnFailSel
- RenderSettings
- ResMode
- Resolution
- RootId
- RootPath *
- RootUrl *
- RuleSetFile
- Sharp
- Sharpen
- ShowOverlapObjs
- TiffEncoding
- TimeStamp
- TrustedDomains *
- UseLastModified
- VignetteMapFile
- Material data reference
- Vignette map reference
- Macro definition reference
- ICC profile map reference
- Rule set reference
- Utilities