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Java Enterprise Edition (EE)

FilterConfig


javax.servlet
Interface FilterConfig

public interface FilterConfig

A filter configuration object used by a servlet container to pass information to a filter during initialization.

Since:
Servlet 2.3
See Also:
Filter

Method Summary
 java.lang.String getFilterName()
          Returns the filter-name of this filter as defined in the deployment descriptor.
 java.lang.String getInitParameter(java.lang.String name)
          Returns a String containing the value of the named initialization parameter, or null if the initialization parameter does not exist.
 java.util.Enumeration<java.lang.String> getInitParameterNames()
          Returns the names of the filter's initialization parameters as an Enumeration of String objects, or an empty Enumeration if the filter has no initialization parameters.
 ServletContext getServletContext()
          Returns a reference to the ServletContext in which the caller is executing.
 

Method Detail

getFilterName

java.lang.String getFilterName()
Returns the filter-name of this filter as defined in the deployment descriptor.

getServletContext

ServletContext getServletContext()
Returns a reference to the ServletContext in which the caller is executing.

Returns:
a ServletContext object, used by the caller to interact with its servlet container
See Also:
ServletContext

getInitParameter

java.lang.String getInitParameter(java.lang.String name)
Returns a String containing the value of the named initialization parameter, or null if the initialization parameter does not exist.

Parameters:
name - a String specifying the name of the initialization parameter
Returns:
a String containing the value of the initialization parameter, or null if the initialization parameter does not exist

getInitParameterNames

java.util.Enumeration<java.lang.String> getInitParameterNames()
Returns the names of the filter's initialization parameters as an Enumeration of String objects, or an empty Enumeration if the filter has no initialization parameters.

Returns:
an Enumeration of String objects containing the names of the filter's initialization parameters


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