23.20. Bootstrap properties

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Property
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Example
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Purpose
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`hibernate.integrator_provider`
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The fully qualified name of an [`IntegratorProvider`](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/jpa/boot/spi/IntegratorProvider.html)
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Used to define a list of  [`Integrator`](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/integrator/spi/Integrator.html) which are used during bootstrap process to integrate various services.
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`hibernate.strategy_registration_provider`
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The fully qualified name of an [`StrategyRegistrationProviderList`](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/jpa/boot/spi/StrategyRegistrationProviderList.html)
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Used to define a list of  [`StrategyRegistrationProvider`](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/boot/registry/selector/StrategyRegistrationProvider.html) which are used during bootstrap process to provide registrations of strategy selector(s).
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`hibernate.type_contributors`
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The fully qualified name of an [`TypeContributorList`](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/jpa/boot/spi/TypeContributorList.html)
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Used to define a list of  [`TypeContributor`](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/boot/model/TypeContributor.html) which are used during bootstrap process to contribute types.
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`hibernate.persister.resolver`
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The fully qualified name of a [`PersisterClassResolver`](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/persister/spi/PersisterClassResolver.html) or a `PersisterClassResolver` instance
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Used to define an implementation of the `PersisterClassResolver` interface which can be used to customize how an entity or a collection is being persisted.
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`hibernate.persister.factory`
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The fully qualified name of a [`PersisterFactory`](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/persister/spi/PersisterFactory.html) or a `PersisterFactory` instance
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Like a `PersisterClassResolver`, the `PersisterFactory` can be used to customize how an entity or a collection are being persisted.
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`hibernate.service.allow_crawling`
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`true` (default value) or `false`
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Crawl all available service bindings for an alternate registration of a given Hibernate `Service`.
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