liquibase-core/src/main/java/liquibase/ObjectMetaData.java
public Attribute getAttribute(String attributeName) {
        for (Attribute attribute : attributes) {
            if (attribute.name.equals(attributeName)) {
                return attribute;
            }
        }
        return null;
    }
public Attribute getAttribute(String attributeName) {
        for (Attribute attribute : attributes) {
            if (attribute.name.equals(attributeName)) {
                return attribute;
            }
        }
        return null;
    }
Convenience method to return the {@link liquibase.ObjectMetaData.Attribute} information for the given attribute.
Returns null if the attribute name doesn't exist.