AttachmentDataService (Bropen Framework 4.8.1 API)

Summary:
Nested
Field
Constructor
Method

| Detail:
Field
Constructor
Method

bropen.framework.plugins.si.storage.AttachmentDataService

附件的数据库存储服务
默认情况下，附件都存储在共享的磁盘上，本服务可以将附件同时转储到数据库中；但由于数据库限制，文件大小最大不超过 4G。

开发环境下，为了便于团队开发，默认启用，并设置最大文件大小为 3M。

配置方式：bropen.framework.resource.attachment.storage.clazz = AttachmentDataService.name bropen.framework.resource.attachment.storage.attachmentdata.maxlength = 4294967296 // 最大不超过 4G，开发环境默认 3M，超出则不保存到数据库中

Field Summary

Fields
Modifiers	Name	Description
`static Long`	`MAX_LENGTH_4G`

Constructor Summary

Constructors
Constructor and description
`AttachmentDataService ()`

Methods Summary

Methods
Type	Name and description
`Integer`	`delete(List<String> saveNames, List<String> syncIds)` 删除转储的附件，并返回删除的附件数量
`boolean`	`exists(String saveName, String syncId)`
`EncodedInputStreamWrapper`	`getEncodedInputStream(javax.servlet.http.HttpServletRequest request, String saveName, String syncId)`
`java.io.InputStream`	`getInputStream(String saveName, String syncId)`
`Long`	`getLength(String saveName, String syncId, Long length)`
`String`	`getUrl(String saveName, String syncId, String fileName, Long length, String contentType, Date expiration)`
`String`	`save(String saveName, java.io.InputStream is, String fileName, Long length, String md5)` 附件转储
`boolean`	`shouldKeepLocalCopy(String fileName, Long length)`

Inherited Methods Summary

Inherited Methods
Methods inherited from class	Name
`class AbstractStorageService`	`delete, deleteFailed, deleteRetry, exists, getEncodedInputStream, getInputStream, getLength, getUrl, isEnabled, save, setEnabled, shouldKeepLocalCopy, transfer`
`class Object`	`Object#wait(long, int), Object#wait(long), Object#wait(), Object#equals(Object), Object#toString(), Object#hashCode(), Object#getClass(), Object#notify(), Object#notifyAll()`

- Field Detail
  - public static final Long MAX_LENGTH_4G
- Constructor Detail
  - AttachmentDataService()
- Method Detail
  - @Override @grails.transaction.Transactional Integer delete(List<String> saveNames, List<String> syncIds)
    
    删除转储的附件，并返回删除的附件数量
  - @Override @grails.transaction.Transactional(readOnly = true) boolean exists(String saveName, String syncId)
  - @Override @SuppressWarnings("GrDeprecatedAPIUsage") EncodedInputStreamWrapper getEncodedInputStream(javax.servlet.http.HttpServletRequest request, String saveName, String syncId)
  - @Override @grails.transaction.Transactional(readOnly = true) java.io.InputStream getInputStream(String saveName, String syncId)
  - @Override @grails.transaction.Transactional(readOnly = true) Long getLength(String saveName, String syncId, Long length)
  - @Override String getUrl(String saveName, String syncId, String fileName, Long length, String contentType, Date expiration)
  - @Override @grails.transaction.Transactional String save(String saveName, java.io.InputStream is, String fileName, Long length, String md5)
    
    附件转储
    Returns:
    返回可作为 syncId 的字符串。如果为 null 则表示转储失败，否则都为成功。
  - @Override boolean shouldKeepLocalCopy(String fileName, Long length)

Summary:
Nested
Field
Constructor
Method

| Detail:
Field
Constructor
Method

BROPEN Documentation, 2020-04-21 11:00