# Uses of Class
org.opensaml.saml.metadata.resolver.filter.AbstractMetadataFilter

Packages that use AbstractMetadataFilter
Package
Description
org.opensaml.saml.metadata.resolver.filter
Classes for SAML metadata filtering.
org.opensaml.saml.metadata.resolver.filter.impl
Implementation of Metadata Filters.

## Uses of AbstractMetadataFilter in org.opensaml.saml.metadata.resolver.filter

Subclasses of AbstractMetadataFilter in org.opensaml.saml.metadata.resolver.filter
Modifier and Type
Class
Description
`class`
`MetadataFilterChain`
A filter that allows the composition of `MetadataFilter`s.

## Uses of AbstractMetadataFilter in org.opensaml.saml.metadata.resolver.filter.impl

Subclasses of AbstractMetadataFilter in org.opensaml.saml.metadata.resolver.filter.impl
Modifier and Type
Class
Description
`class`
`AlgorithmFilter`
A filter that adds algorithm extension content to entities in order to drive software behavior based on them.
`class`
`ByReferenceMetadataFilter`
A `MetadataFilter` that associates other filters with specific `MetadataResolver` instances by ID.
`class`
`EntityAttributesFilter`
A filter that adds `EntityAttributes` extension content to entities in order to drive software behavior based on them.
`class`
`EntityRoleFilter`
A filter that removes roles from an entity descriptor.
`class`
`NameIDFormatFilter`
A filter that adds `NameIDFormat` content to entities in order to drive software behavior based on them.
`class`
`NodeProcessingMetadataFilter`
An implementation of `MetadataFilter` which applies a `MetadataNodeProcessor` to each element node in the metadata document tree.
`class`
`PredicateFilter`
A filter that removes any `EntityDescriptor` that does or does not match a `Predicate`, thus an include or exclude policy.
`class`
`RequiredValidUntilFilter`
A metadata filter that requires the presence of a `validUntil` attribute on the root element of the metadata document.
`class`
`SchemaValidationFilter`
A metadata filter that schema validates an incoming metadata file.
`class`
`SignatureValidationFilter`
A metadata filter that validates XML signatures.