Add some component definitions

[backpaper0]

Overview

Add component definitions for the following four classes returned by Config:

• DuplicateColumnHandler
• ScriptFileLoader
• SqlBuilderSettings
• StatisticManager

Default Components

• DuplicateColumnHandler
  • Set ConfigSupport.defaultDuplicateColumnHandler as the default component.
• ScriptFileLoader
  • Implement a concrete class that resolves resources using Spring's ResourceLoader and set it as the default component.
• SqlBuilderSettings
  • Provide a custom implementation class that behaves as follows:
    • shouldRemoveBlockComment method
      • Use the Predicate<String> defined as a component named shouldRemoveBlockComment, if available.
      • Otherwise, return false.
    • shouldRemoveLineComment method
      • Use the Predicate<String> defined as a component named shouldRemoveLineComment, if available.
      • Otherwise, return false.
    • shouldRemoveBlankLines method
      • Return the value of the doma.sql-builder-settings.should-remove-blank-lines property.
    • shouldRequireInListPadding method
      • Return the value of the doma.sql-builder-settings.should-require-in-list-padding property.
• StatisticManager
  • Set DefaultStatisticManager as the default component. Pass the value of the doma.statistic-manager.enabled property to the constructor.

These can be overridden by the user by defining components.

Properties

• doma.sql-builder-settings.should-remove-blank-lines : boolean
  • The value returned by SqlBuilderSettings.shouldRemoveBlankLines().
• doma.sql-builder-settings.should-require-in-list-padding : boolean
  • The value returned by SqlBuilderSettings.shouldRequireInListPadding().
• doma.throw-exception-if-duplicate-column : boolean
  • If true, ThrowingDuplicateColumnHandler is used as the implementation class of DuplicateColumnHandler.
• doma.statistic-manager.enabled : bool
  • If set to true, constructs a DefaultStatisticManager with enabled set to true.

Future Plans

We will integrate with Micrometer to send the statistical data collected by StatisticManager.
Since this requires the committers to have an in-depth understanding of Micrometer and StatisticManager, it may take some time to implement.

[nakamura-to]

LGTM.
Thank you!