org.springframework.core.env

Class PropertySource.ComparisonPropertySource

java.lang.Object

org.springframework.core.env.PropertySource<java.lang.Object>

org.springframework.core.env.PropertySource.StubPropertySource

org.springframework.core.env.PropertySource.ComparisonPropertySource

Enclosing class:

PropertySource<T>

static class PropertySource.ComparisonPropertySource
extends PropertySource.StubPropertySource

See Also:

PropertySource.named(String)

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.core.env.PropertySource

PropertySource.ComparisonPropertySource, PropertySource.StubPropertySource

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.String	USAGE_ERROR

Fields inherited from class org.springframework.core.env.PropertySource

logger, name, source

Constructor Summary

Constructors

Constructor and Description
ComparisonPropertySource(java.lang.String name)

Method Summary

Modifier and Type	Method and Description
boolean	containsProperty(java.lang.String name) Return whether this PropertySource contains the given name.
java.lang.String	getProperty(java.lang.String name) Always returns null.
java.lang.Object	getSource() Return the underlying source object for this PropertySource.
java.lang.String	toString() Produce concise output (type and name) if the current log level does not include debug.

Methods inherited from class org.springframework.core.env.PropertySource

equals, getName, hashCode, named

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

USAGE_ERROR

private static final java.lang.String USAGE_ERROR

See Also:

Constant Field Values

Constructor Detail

ComparisonPropertySource

public ComparisonPropertySource(java.lang.String name)

Method Detail

getSource

public java.lang.Object getSource()

Description copied from class: PropertySource

Return the underlying source object for this PropertySource.

Overrides:

getSource in class PropertySource<java.lang.Object>

containsProperty

public boolean containsProperty(java.lang.String name)

Description copied from class: PropertySource

Return whether this PropertySource contains the given name.

This implementation simply checks for a null return value from PropertySource.getProperty(String). Subclasses may wish to implement a more efficient algorithm if possible.

Overrides:

containsProperty in class PropertySource<java.lang.Object>

Parameters:

name - the property name to find

getProperty

public java.lang.String getProperty(java.lang.String name)

Description copied from class: PropertySource.StubPropertySource

Always returns null.

Overrides:

getProperty in class PropertySource.StubPropertySource

Parameters:

name - the property to find

See Also:

PropertyResolver.getRequiredProperty(String)

toString

public java.lang.String toString()

Description copied from class: PropertySource

Produce concise output (type and name) if the current log level does not include debug. If debug is enabled, produce verbose output including the hash code of the PropertySource instance and every name/value property pair.

This variable verbosity is useful as a property source such as system properties or environment variables may contain an arbitrary number of property pairs, potentially leading to difficult to read exception and log messages.

Overrides:

toString in class PropertySource<java.lang.Object>

See Also:

Log#isDebugEnabled()