public final class EnvironmentPropertyValue extends java.lang.Object implements Value<java.lang.String>, java.security.PrivilegedAction<java.lang.String>
System.getenv(String)
Constructor and Description |
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EnvironmentPropertyValue(java.lang.String propertyName)
Construct a new instance.
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EnvironmentPropertyValue(java.lang.String propertyName,
java.security.AccessControlContext accessControlContext)
Construct a new instance.
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EnvironmentPropertyValue(java.lang.String propertyName,
java.security.AccessControlContext accessControlContext,
Value<?> defaultValue)
Construct a new instance.
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EnvironmentPropertyValue(java.lang.String propertyName,
Value<?> defaultValue)
Construct a new instance.
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public EnvironmentPropertyValue(java.lang.String propertyName)
propertyName
- the property name to readpublic EnvironmentPropertyValue(java.lang.String propertyName, java.security.AccessControlContext accessControlContext)
propertyName
- the property name to readaccessControlContext
- the access control context in which to fetch the property valuepublic EnvironmentPropertyValue(java.lang.String propertyName, Value<?> defaultValue)
propertyName
- the property name to readdefaultValue
- the value to use if the property is unsetpublic EnvironmentPropertyValue(java.lang.String propertyName, java.security.AccessControlContext accessControlContext, Value<?> defaultValue)
propertyName
- the property name to readaccessControlContext
- the access control context in which to fetch the property valuedefaultValue
- the value to use if the property is unsetpublic java.lang.String getValue() throws java.lang.IllegalStateException, java.lang.IllegalArgumentException
public java.lang.String run()
run
in interface java.security.PrivilegedAction<java.lang.String>
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