Spring Core 6.1.4 · org.springframework.core.env.AbstractPropertyResolver

Modifier and Type	Field and Description
private volatile ConfigurableConversionService	conversionService
private boolean	ignoreUnresolvableNestedPlaceholders
protected final Log	logger
private PropertyPlaceholderHelper	nonStrictHelper
private String	placeholderPrefix
private String	placeholderSuffix
private final Set<String>	requiredProperties
private PropertyPlaceholderHelper	strictHelper
private String	valueSeparator

Access	Constructor and Description
public	AbstractPropertyResolver()

Method Summary

Modifier and Type	Method and Description
public boolean	containsProperty(String key) Implements org.springframework.core.env.PropertyResolver.containsProperty. Return whether the given property key is available for resolution, i.e. if the value for the given key is not `null`.
protected <T> T	Returns: the converted value, or the original value if no conversion is necessary convertValueIfNecessary(Object the original property value value, Class<T> the specified target type for property retrieval targetType) Convert the given value to the specified target type, if necessary.
private PropertyPlaceholderHelper	createPlaceholderHelper(boolean ignoreUnresolvablePlaceholders)
private String	doResolvePlaceholders(String text, PropertyPlaceholderHelper helper)
public ConfigurableConversionService	getConversionService() Implements org.springframework.core.env.ConfigurablePropertyResolver.getConversionService. Return the `ConfigurableConversionService` used when performing type conversions on properties.
public String	getProperty(String the property name to resolve key) Implements org.springframework.core.env.PropertyResolver.getProperty. Return the property value associated with the given key, or `null` if the key cannot be resolved.
public String	getProperty(String the property name to resolve key, String the default value to return if no value is found defaultValue) Implements org.springframework.core.env.PropertyResolver.getProperty. Return the property value associated with the given key, or `defaultValue` if the key cannot be resolved.
public <T> T	getProperty(String the property name to resolve key, Class<T> the expected type of the property value targetType, T the default value to return if no value is found defaultValue) Implements org.springframework.core.env.PropertyResolver.getProperty. Return the property value associated with the given key, or `defaultValue` if the key cannot be resolved.
protected abstract String	Returns: the property value or `null` if none found getPropertyAsRawString(String the property name to resolve key) Retrieve the specified property as a raw String, i.e. without resolution of nested placeholders.
public String	getRequiredProperty(String key) Implements org.springframework.core.env.PropertyResolver.getRequiredProperty. Return the property value associated with the given key (never `null`).
public <T> T	getRequiredProperty(String key, Class<T> valueType) Implements org.springframework.core.env.PropertyResolver.getRequiredProperty. Return the property value associated with the given key, converted to the given targetType (never `null`).
protected String	resolveNestedPlaceholders(String value) Resolve placeholders within the given string, deferring to the value of `setIgnoreUnresolvableNestedPlaceholders` to determine whether any unresolvable placeholders should raise an exception or be ignored.
public String	resolvePlaceholders(String the String to resolve text) Implements org.springframework.core.env.PropertyResolver.resolvePlaceholders. Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by `getProperty`.
public String	resolveRequiredPlaceholders(String text) Implements org.springframework.core.env.PropertyResolver.resolveRequiredPlaceholders. Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by `getProperty`.
public void	setConversionService(ConfigurableConversionService conversionService) Implements org.springframework.core.env.ConfigurablePropertyResolver.setConversionService. Set the `ConfigurableConversionService` to be used when performing type conversions on properties.
public void	setIgnoreUnresolvableNestedPlaceholders(boolean ignoreUnresolvableNestedPlaceholders) Implements org.springframework.core.env.ConfigurablePropertyResolver.setIgnoreUnresolvableNestedPlaceholders. Set whether to throw an exception when encountering an unresolvable placeholder nested within the value of a given property.
public void	setPlaceholderPrefix(String placeholderPrefix) Implements org.springframework.core.env.ConfigurablePropertyResolver.setPlaceholderPrefix. Set the prefix that placeholders replaced by this resolver must begin with.
public void	setPlaceholderSuffix(String placeholderSuffix) Implements org.springframework.core.env.ConfigurablePropertyResolver.setPlaceholderSuffix. Set the suffix that placeholders replaced by this resolver must end with.
public void	setRequiredProperties(String... requiredProperties) Implements org.springframework.core.env.ConfigurablePropertyResolver.setRequiredProperties. Specify which properties must be present, to be verified by `validateRequiredProperties()`.
public void	setValueSeparator(String valueSeparator) Implements org.springframework.core.env.ConfigurablePropertyResolver.setValueSeparator. Specify the separating character between the placeholders replaced by this resolver and their associated default value, or `null` if no such special character should be processed as a value separator.
public void	validateRequiredProperties() Implements org.springframework.core.env.ConfigurablePropertyResolver.validateRequiredProperties. Validate that each of the properties specified by `setRequiredProperties` is present and resolves to a non-`null` value.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

conversionService	back to summary
private volatile ConfigurableConversionService conversionService Annotations @Nullable

ignoreUnresolvableNestedPlaceholders	back to summary
private boolean ignoreUnresolvableNestedPlaceholders

logger	back to summary
protected final Log logger

nonStrictHelper	back to summary
private PropertyPlaceholderHelper nonStrictHelper Annotations @Nullable

placeholderPrefix	back to summary
private String placeholderPrefix

placeholderSuffix	back to summary
private String placeholderSuffix

requiredProperties	back to summary
private final Set<String> requiredProperties

strictHelper	back to summary
private PropertyPlaceholderHelper strictHelper Annotations @Nullable

valueSeparator	back to summary
private String valueSeparator Annotations @Nullable

AbstractPropertyResolver	back to summary
public AbstractPropertyResolver()

Method Detail

containsProperty back to summary

containsProperty	back to summary
public boolean containsProperty(String key) Implements org.springframework.core.env.PropertyResolver.containsProperty. Doc from org.springframework.core.env.PropertyResolver.containsProperty. Return whether the given property key is available for resolution, i.e. if the value for the given key is not `null`. Annotations @Override

public boolean containsProperty(String key)

Implements org.springframework.core.env.PropertyResolver.containsProperty.

Doc from org.springframework.core.env.PropertyResolver.containsProperty.

Return whether the given property key is available for resolution, i.e. if the value for the given key is not null.

Annotations

@Override

convertValueIfNecessary	back to summary
protected <T> T convertValueIfNecessary(Object value, Class<T> targetType) Convert the given value to the specified target type, if necessary. Parameters value:Object the original property value targetType:Class<T> the specified target type for property retrieval Returns:T the converted value, or the original value if no conversion is necessary Annotations @SuppressWarnings:unchecked @Nullable Since 4.3.5

convertValueIfNecessary

back to summary

protected <T> T convertValueIfNecessary(Object value, Class<T> targetType)

Convert the given value to the specified target type, if necessary.

Parameters

value:Object: the original property value
targetType:Class<T>: the specified target type for property retrieval

Returns:T

the converted value, or the original value if no conversion is necessary

Annotations

@SuppressWarnings:unchecked
@Nullable

Since

4.3.5

createPlaceholderHelper	back to summary
private PropertyPlaceholderHelper createPlaceholderHelper(boolean ignoreUnresolvablePlaceholders)

doResolvePlaceholders	back to summary
private String doResolvePlaceholders(String text, PropertyPlaceholderHelper helper)

getConversionService back to summary

getConversionService	back to summary
public ConfigurableConversionService getConversionService() Implements org.springframework.core.env.ConfigurablePropertyResolver.getConversionService. Doc from org.springframework.core.env.ConfigurablePropertyResolver.getConversionService. Return the `ConfigurableConversionService` used when performing type conversions on properties. The configurable nature of the returned conversion service allows for the convenient addition and removal of individual `Converter` instances: ConfigurableConversionService cs = env.getConversionService(); cs.addConverter(new FooConverter()); Annotations @Override

public ConfigurableConversionService getConversionService()

Implements org.springframework.core.env.ConfigurablePropertyResolver.getConversionService.

Doc from org.springframework.core.env.ConfigurablePropertyResolver.getConversionService.

Return the ConfigurableConversionService used when performing type conversions on properties.

The configurable nature of the returned conversion service allows for the convenient addition and removal of individual Converter instances:

ConfigurableConversionService cs = env.getConversionService();
cs.addConverter(new FooConverter());

Annotations

@Override

getProperty back to summary

getProperty	back to summary
public String getProperty(String key) Implements org.springframework.core.env.PropertyResolver.getProperty. Doc from org.springframework.core.env.PropertyResolver.getProperty. Return the property value associated with the given key, or `null` if the key cannot be resolved. Parameters key:String the property name to resolve Annotations @Override @Nullable

public String getProperty(String key)

Implements org.springframework.core.env.PropertyResolver.getProperty.

Doc from org.springframework.core.env.PropertyResolver.getProperty.

Return the property value associated with the given key, or null if the key cannot be resolved.

Parameters

key:String: the property name to resolve

Annotations

@Override
@Nullable

getProperty back to summary

getProperty	back to summary
public String getProperty(String key, String defaultValue) Implements org.springframework.core.env.PropertyResolver.getProperty. Doc from org.springframework.core.env.PropertyResolver.getProperty. Return the property value associated with the given key, or `defaultValue` if the key cannot be resolved. Parameters key:String the property name to resolve defaultValue:String the default value to return if no value is found Annotations @Override

public String getProperty(String key, String defaultValue)

Implements org.springframework.core.env.PropertyResolver.getProperty.

Doc from org.springframework.core.env.PropertyResolver.getProperty.

Return the property value associated with the given key, or defaultValue if the key cannot be resolved.

Parameters

key:String: the property name to resolve
defaultValue:String: the default value to return if no value is found

Annotations

@Override

getProperty back to summary

getProperty	back to summary
public <T> T getProperty(String key, Class<T> targetType, T defaultValue) Implements org.springframework.core.env.PropertyResolver.getProperty. Doc from org.springframework.core.env.PropertyResolver.getProperty. Return the property value associated with the given key, or `defaultValue` if the key cannot be resolved. Parameters key:String the property name to resolve targetType:Class<T> the expected type of the property value defaultValue:T the default value to return if no value is found Annotations @Override

public <T> T getProperty(String key, Class<T> targetType, T defaultValue)

Implements org.springframework.core.env.PropertyResolver.getProperty.

Doc from org.springframework.core.env.PropertyResolver.getProperty.

Return the property value associated with the given key, or defaultValue if the key cannot be resolved.

Parameters

key:String: the property name to resolve
targetType:Class<T>: the expected type of the property value
defaultValue:T: the default value to return if no value is found

Annotations

@Override

getPropertyAsRawString back to summary

getPropertyAsRawString	back to summary
protected abstract String getPropertyAsRawString(String key) Retrieve the specified property as a raw String, i.e. without resolution of nested placeholders. Parameters key:String the property name to resolve Returns:String the property value or `null` if none found Annotations @Nullable

protected abstract String getPropertyAsRawString(String key)

Retrieve the specified property as a raw String, i.e. without resolution of nested placeholders.

Parameters

key:String: the property name to resolve

Returns:String

the property value or null if none found

Annotations

@Nullable

getRequiredProperty back to summary

getRequiredProperty	back to summary
public String getRequiredProperty(String key) throws IllegalStateException Implements org.springframework.core.env.PropertyResolver.getRequiredProperty. Doc from org.springframework.core.env.PropertyResolver.getRequiredProperty. Return the property value associated with the given key (never `null`). Annotations @Override Exceptions IllegalStateException: if the key cannot be resolved

public String getRequiredProperty(String key) throws IllegalStateException

Implements org.springframework.core.env.PropertyResolver.getRequiredProperty.

Doc from org.springframework.core.env.PropertyResolver.getRequiredProperty.

Return the property value associated with the given key (never null).

Annotations

@Override

Exceptions

IllegalStateException:: if the key cannot be resolved

getRequiredProperty back to summary

getRequiredProperty	back to summary
public <T> T getRequiredProperty(String key, Class<T> valueType) throws IllegalStateException Implements org.springframework.core.env.PropertyResolver.getRequiredProperty. Doc from org.springframework.core.env.PropertyResolver.getRequiredProperty. Return the property value associated with the given key, converted to the given targetType (never `null`). Annotations @Override Exceptions IllegalStateException: if the given key cannot be resolved

public <T> T getRequiredProperty(String key, Class<T> valueType) throws IllegalStateException

Implements org.springframework.core.env.PropertyResolver.getRequiredProperty.

Doc from org.springframework.core.env.PropertyResolver.getRequiredProperty.

Return the property value associated with the given key, converted to the given targetType (never null).

Annotations

@Override

Exceptions

IllegalStateException:: if the given key cannot be resolved

resolveNestedPlaceholders back to summary

resolveNestedPlaceholders	back to summary
protected String resolveNestedPlaceholders(String value) Resolve placeholders within the given string, deferring to the value of `setIgnoreUnresolvableNestedPlaceholders` to determine whether any unresolvable placeholders should raise an exception or be ignored. Invoked from `getProperty` and its variants, implicitly resolving nested placeholders. In contrast, `resolvePlaceholders` and `resolveRequiredPlaceholders` do not delegate to this method but rather perform their own handling of unresolvable placeholders, as specified by each of those methods. Since 3.2 See Also `setIgnoreUnresolvableNestedPlaceholders`

protected String resolveNestedPlaceholders(String value)

Resolve placeholders within the given string, deferring to the value of setIgnoreUnresolvableNestedPlaceholders to determine whether any unresolvable placeholders should raise an exception or be ignored.

Invoked from getProperty and its variants, implicitly resolving nested placeholders. In contrast, resolvePlaceholders and resolveRequiredPlaceholders do not delegate to this method but rather perform their own handling of unresolvable placeholders, as specified by each of those methods.

Since: 3.2
See Also: setIgnoreUnresolvableNestedPlaceholders

resolvePlaceholders back to summary

resolvePlaceholders	back to summary
public String resolvePlaceholders(String text) Implements org.springframework.core.env.PropertyResolver.resolvePlaceholders. Doc from org.springframework.core.env.PropertyResolver.resolvePlaceholders. Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by `getProperty`. Unresolvable placeholders with no default value are ignored and passed through unchanged. Parameters text:String the String to resolve Returns:String the resolved String (never `null`) Annotations @Override

public String resolvePlaceholders(String text)

Implements org.springframework.core.env.PropertyResolver.resolvePlaceholders.

Doc from org.springframework.core.env.PropertyResolver.resolvePlaceholders.

Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by getProperty. Unresolvable placeholders with no default value are ignored and passed through unchanged.

Parameters

text:String: the String to resolve

Returns:String

the resolved String (never null)

Annotations

@Override

resolveRequiredPlaceholders back to summary

resolveRequiredPlaceholders	back to summary
public String resolveRequiredPlaceholders(String text) throws IllegalArgumentException Implements org.springframework.core.env.PropertyResolver.resolveRequiredPlaceholders. Doc from org.springframework.core.env.PropertyResolver.resolveRequiredPlaceholders. Resolve ${...} placeholders in the given text, replacing them with corresponding property values as resolved by `getProperty`. Unresolvable placeholders with no default value will cause an IllegalArgumentException to be thrown. Returns:String the resolved String (never `null`) Annotations @Override Exceptions IllegalArgumentException: if given text is `null` or if any placeholders are unresolvable

public String resolveRequiredPlaceholders(String text) throws IllegalArgumentException

Implements org.springframework.core.env.PropertyResolver.resolveRequiredPlaceholders.

Doc from org.springframework.core.env.PropertyResolver.resolveRequiredPlaceholders.

Returns:String

the resolved String (never null)

Annotations

@Override

Exceptions

IllegalArgumentException:: if given text is null or if any placeholders are unresolvable

setConversionService back to summary

setConversionService	back to summary
public void setConversionService(ConfigurableConversionService conversionService) Implements org.springframework.core.env.ConfigurablePropertyResolver.setConversionService. Doc from org.springframework.core.env.ConfigurablePropertyResolver.setConversionService. Set the `ConfigurableConversionService` to be used when performing type conversions on properties. Note as an alternative to fully replacing the `ConversionService`, consider adding or removing individual `Converter` instances by drilling into `getConversionService()` and calling methods such as `#addConverter`. Annotations @Override

public void setConversionService(ConfigurableConversionService conversionService)

Implements org.springframework.core.env.ConfigurablePropertyResolver.setConversionService.

Doc from org.springframework.core.env.ConfigurablePropertyResolver.setConversionService.

Set the ConfigurableConversionService to be used when performing type conversions on properties.

Note

as an alternative to fully replacing the ConversionService, consider adding or removing individual Converter instances by drilling into getConversionService() and calling methods such as #addConverter.

Annotations

@Override

setIgnoreUnresolvableNestedPlaceholders back to summary

setIgnoreUnresolvableNestedPlaceholders	back to summary
public void setIgnoreUnresolvableNestedPlaceholders(boolean ignoreUnresolvableNestedPlaceholders) Implements org.springframework.core.env.ConfigurablePropertyResolver.setIgnoreUnresolvableNestedPlaceholders. Set whether to throw an exception when encountering an unresolvable placeholder nested within the value of a given property. A `false` value indicates strict resolution, i.e. that an exception will be thrown. A `true` value indicates that unresolvable nested placeholders should be passed through in their unresolved ${...} form. The default is `false`. Annotations @Override Since 3.2

public void setIgnoreUnresolvableNestedPlaceholders(boolean ignoreUnresolvableNestedPlaceholders)

Implements org.springframework.core.env.ConfigurablePropertyResolver.setIgnoreUnresolvableNestedPlaceholders.

Set whether to throw an exception when encountering an unresolvable placeholder nested within the value of a given property. A false value indicates strict resolution, i.e. that an exception will be thrown. A true value indicates that unresolvable nested placeholders should be passed through in their unresolved ${...} form.

The default is false.

Annotations

@Override

Since

3.2

setPlaceholderPrefix back to summary

setPlaceholderPrefix	back to summary
public void setPlaceholderPrefix(String placeholderPrefix) Implements org.springframework.core.env.ConfigurablePropertyResolver.setPlaceholderPrefix. Set the prefix that placeholders replaced by this resolver must begin with. The default is "${". Annotations @Override See Also `org.springframework.util.SystemPropertyUtils#PLACEHOLDER_PREFIX`

public void setPlaceholderPrefix(String placeholderPrefix)

Implements org.springframework.core.env.ConfigurablePropertyResolver.setPlaceholderPrefix.

Set the prefix that placeholders replaced by this resolver must begin with.

The default is "${".

Annotations

@Override

setPlaceholderSuffix back to summary

setPlaceholderSuffix	back to summary
public void setPlaceholderSuffix(String placeholderSuffix) Implements org.springframework.core.env.ConfigurablePropertyResolver.setPlaceholderSuffix. Set the suffix that placeholders replaced by this resolver must end with. The default is "}". Annotations @Override See Also `org.springframework.util.SystemPropertyUtils#PLACEHOLDER_SUFFIX`

public void setPlaceholderSuffix(String placeholderSuffix)

Implements org.springframework.core.env.ConfigurablePropertyResolver.setPlaceholderSuffix.

Set the suffix that placeholders replaced by this resolver must end with.

The default is "}".

Annotations

@Override

setRequiredProperties back to summary

setRequiredProperties	back to summary
public void setRequiredProperties(String... requiredProperties) Implements org.springframework.core.env.ConfigurablePropertyResolver.setRequiredProperties. Doc from org.springframework.core.env.ConfigurablePropertyResolver.setRequiredProperties. Specify which properties must be present, to be verified by `validateRequiredProperties()`. Annotations @Override

public void setRequiredProperties(String... requiredProperties)

Implements org.springframework.core.env.ConfigurablePropertyResolver.setRequiredProperties.

Doc from org.springframework.core.env.ConfigurablePropertyResolver.setRequiredProperties.

Specify which properties must be present, to be verified by validateRequiredProperties().

Annotations

@Override

setValueSeparator back to summary

setValueSeparator	back to summary
public void setValueSeparator(String valueSeparator) Implements org.springframework.core.env.ConfigurablePropertyResolver.setValueSeparator. Specify the separating character between the placeholders replaced by this resolver and their associated default value, or `null` if no such special character should be processed as a value separator. The default is ":". Annotations @Override See Also `org.springframework.util.SystemPropertyUtils#VALUE_SEPARATOR`

public void setValueSeparator(String valueSeparator)

Implements org.springframework.core.env.ConfigurablePropertyResolver.setValueSeparator.

Specify the separating character between the placeholders replaced by this resolver and their associated default value, or null if no such special character should be processed as a value separator.

The default is ":".

Annotations

@Override

validateRequiredProperties back to summary

validateRequiredProperties	back to summary
public void validateRequiredProperties() Implements org.springframework.core.env.ConfigurablePropertyResolver.validateRequiredProperties. Doc from org.springframework.core.env.ConfigurablePropertyResolver.validateRequiredProperties. Validate that each of the properties specified by `setRequiredProperties` is present and resolves to a non-`null` value. Annotations @Override

public void validateRequiredProperties()

Implements org.springframework.core.env.ConfigurablePropertyResolver.validateRequiredProperties.

Doc from org.springframework.core.env.ConfigurablePropertyResolver.validateRequiredProperties.

Validate that each of the properties specified by setRequiredProperties is present and resolves to a non-null value.

Annotations

@Override

public abstract Class AbstractPropertyResolver

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