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public interface BlobReadSession extends AutoCloseable, CloseableA session for reading bytes from a Blob See Also: Storage#blobReadSession(BlobId, BlobSourceOption...), ReadProjectionConfigs
Methods
<Projection>readAs(ReadProjectionConfig<Projection> config)
public abstract Projection <Projection>readAs(ReadProjectionConfig<Projection> config)Read from this session as a specific Projection as dictated by the provided
config
See Also: ReadProjectionConfigs, ReadProjectionConfig
| Parameter | |
|---|---|
| Name | Description |
config |
ReadProjectionConfig<Projection> |
| Returns | |
|---|---|
| Type | Description |
Projection |
|
close()
public abstract void close()Close this session and any Projections produced by <xref uid="com.google.cloud.storage.BlobReadSession.<Projection>readAs(com.google.cloud.storage.ReadProjectionConfig<Projection>)" data-throw-if-not-resolved="false">#readAs(ReadProjectionConfig).
If a projection is not fully consumed/resolved it will be transitioned to a failed state.
This method MUST be called to ensure cleanup of any inflight buffers, and to avoid a memory leak.
| Exceptions | |
|---|---|
| Type | Description |
IOException |
|
getBlobInfo()
public abstract BlobInfo getBlobInfo()The resolved metadata for the object being read
| Returns | |
|---|---|
| Type | Description |
BlobInfo |
|