Package liquibase.configuration
Interface ConfigurationValueProvider
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- All Known Implementing Classes:
AbstractConfigurationValueProvider
,AbstractMapConfigurationValueProvider
,CommandLineArgumentValueProvider
,DefaultsFileValueProvider
,DeprecatedConfigurationValueProvider
,EnvironmentValueProvider
,FlowCommandArgumentValueProvider
,LiquibaseSdkConfigurationValueProvider
,ScopeValueProvider
,ServletConfigurationValueProvider
,SystemPropertyValueProvider
public interface ConfigurationValueProvider
Defines a way forLiquibaseConfiguration
to find configured values.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description int
getPrecedence()
Returns the precedence of values returned by this provider.ProvidedValue
getProvidedValue(String... keyAndAliases)
Lookup the given key(s) in this source.void
validate(CommandScope commandScope)
Perform any validation of keys/values stored in this provider for the given commandScope.
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Method Detail
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getPrecedence
int getPrecedence()
Returns the precedence of values returned by this provider. Higher a provider with higher precedence overrides values from lower precedence providers.
Standard provider precedence:- 400
ScopeValueProvider
- 350
DeprecatedConfigurationValueProvider
- 250 Integration specific providers
- 300: TODO JNDI attributes
- 250: TODO Servlet Context
- 200
SystemPropertyValueProvider
- 150 EnvironmentValueProvider
- 100: TODO profile/context specific properties files
- 50:
DefaultsFileValueProvider
- 400
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getProvidedValue
ProvidedValue getProvidedValue(String... keyAndAliases)
Lookup the given key(s) in this source. It is up to the implementation to provide any "smoothing" or translation of key names. For example, an EnvironmentValueProvider will look check environment variables containing _'s rather than .'s.- Parameters:
keyAndAliases
- an array of keys to check, where the first element is the canonical key name, any aliases for that key as later elements.- Returns:
- null if the key is not defined in this provider.
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validate
void validate(CommandScope commandScope) throws IllegalArgumentException
Perform any validation of keys/values stored in this provider for the given commandScope. For example, check for keys that do not match anything expected.- Throws:
IllegalArgumentException
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