| Package | Description |
|---|---|
| org.apache.drill.exec.physical.impl.scan |
Defines the scan operation implementation.
|
| org.apache.drill.exec.physical.impl.scan.columns |
Handles the special "columns" column used by the text reader,
and available to similar readers.
|
| org.apache.drill.exec.physical.impl.scan.file |
Handles optional file metadata columns: implicit columns and
partition columns.
|
| org.apache.drill.exec.physical.impl.scan.framework |
Defines the projection, vector continuity and other operations for
a set of one or more readers.
|
| org.apache.drill.exec.physical.impl.scan.project |
Provides run-time semantic analysis of the projection list for the
scan operator.
|
| org.apache.drill.exec.physical.impl.scan.v3.lifecycle |
Implements the details of the scan lifecycle for a set of readers,
primarily the process of resolving the scan output schema from a variety
of input schemas, then running each reader, each of which will produce
some number of batches.
|
| Modifier and Type | Method and Description |
|---|---|
ScanOperatorEvents |
ScanTestUtils.MockScanBuilder.buildEvents() |
| Constructor and Description |
|---|
ScanOperatorExec(ScanOperatorEvents factory,
boolean allowEmptyResult) |
| Modifier and Type | Class and Description |
|---|---|
class |
ColumnsScanFramework
Scan framework for a file that supports the special "columns" column.
|
| Modifier and Type | Method and Description |
|---|---|
ScanOperatorEvents |
ColumnsScanFramework.ColumnsScanBuilder.buildEvents() |
| Modifier and Type | Class and Description |
|---|---|
class |
FileScanFramework
The file scan framework adds into the scan framework support for implicit
reading from DFS splits (a file and a block).
|
| Modifier and Type | Method and Description |
|---|---|
ScanOperatorEvents |
FileScanFramework.FileScanBuilder.buildEvents() |
| Modifier and Type | Class and Description |
|---|---|
class |
ManagedScanFramework
Basic scan framework for a "managed" reader which uses the scan schema
mechanisms encapsulated in the scan schema orchestrator.
|
| Modifier and Type | Method and Description |
|---|---|
ScanOperatorEvents |
ManagedScanFramework.ScanFrameworkBuilder.buildEvents() |
| Modifier and Type | Method and Description |
|---|---|
abstract ScanOperatorEvents |
ScanSchemaOrchestrator.ScanOrchestratorBuilder.buildEvents() |
| Modifier and Type | Class and Description |
|---|---|
class |
ScanEventListener
Binds the scan lifeycle to the scan operator.
|
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