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public interface LoaderRowsStep<R extends Record>
TheLoader
API is used for configuring data loads.The step in constructing the
Loader
object where you can set the mandatory row loader options.Referencing
XYZ*Step
types directly from client codeIt is usually not recommended to reference any
XYZ*Step
types directly from client code, or assign them to local variables. When writing dynamic SQL, creating a statement's components dynamically, and passing them to the DSL API statically is usually a better choice. See the manual's section about dynamic SQL for details: https://www.jooq.org/doc/latest/manual/sql-building/dynamic-sql.Drawbacks of referencing the
XYZ*Step
types directly:- They're operating on mutable implementations (as of jOOQ 3.x)
- They're less composable and not easy to get right when dynamic SQL gets complex
- They're less readable
- They might have binary incompatible changes between minor releases
- Author:
- Lukas Eder
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Method Summary
All Methods Instance Methods Abstract Methods Deprecated Methods Modifier and Type Method Description @NotNull LoaderListenerStep<R>
fields(Collection<? extends Field<?>> fields)
Specify the the fields to be loaded into the table in the correct order.@NotNull LoaderListenerStep<R>
fields(Field<?>... fields)
Specify the the fields to be loaded into the table in the correct order.@NotNull LoaderListenerStep<R>
fields(LoaderFieldMapper mapper)
Specify a function to apply on each input field to receive the target table's field.@NotNull LoaderCSVOptionsStep<R>
fieldsCorresponding()
Indicate that all input fields which have a corresponding field in the target table (with the same name) should be loaded.@NotNull LoaderCSVOptionsStep<R>
fieldsFromSource()
Deprecated.- 3.14.0 - [#10010] - UsefieldsCorresponding()
instead.
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Method Detail
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fields
@NotNull @Support @NotNull LoaderListenerStep<R> fields(Field<?>... fields)
Specify the the fields to be loaded into the table in the correct order.The record column at index
i
is inserted into the table field at indexi
. Iffields[i] == null
orfields.length <= i
, then the record column is skipped.
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fields
@NotNull @Support @NotNull LoaderListenerStep<R> fields(Collection<? extends Field<?>> fields)
Specify the the fields to be loaded into the table in the correct order.The record column at index
i
is inserted into the table field at indexi
. Ifnew ArrayList(fields).get(i) == null
ornew ArrayList(fields).size() <= i
, then the record column is skipped.
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fields
@NotNull @Support @NotNull LoaderListenerStep<R> fields(LoaderFieldMapper mapper)
Specify a function to apply on each input field to receive the target table's field.The input field obtained from
LoaderFieldMapper.LoaderFieldContext.field()
corresponds to the source record field, if any, or an unspecified field enumeration is used. TheLoaderFieldMapper.LoaderFieldContext.index()
property corresponds to the source column index.
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fieldsFromSource
@Deprecated @NotNull @Support @NotNull LoaderCSVOptionsStep<R> fieldsFromSource()
Deprecated.- 3.14.0 - [#10010] - UsefieldsCorresponding()
instead.Indicate that all input fields which have a corresponding field in the target table (with the same name) should be loaded.- Throws:
LoaderConfigurationException
- When the source data does not expose field names.
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fieldsCorresponding
@NotNull @Support @NotNull LoaderCSVOptionsStep<R> fieldsCorresponding()
Indicate that all input fields which have a corresponding field in the target table (with the same name) should be loaded.- Throws:
LoaderConfigurationException
- When the source data does not expose field names.
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