liquibase-core/src/main/java/liquibase/change/ChangeMetaData.java
public Map<String, ChangeParameterMetaData> getRequiredParameters(Database database) {
        Map<String, ChangeParameterMetaData> returnMap = new HashMap<>();

        for (ChangeParameterMetaData metaData : parameters.values()) {
            if (metaData.isRequiredFor(database)) {
                returnMap.put(metaData.getParameterName(), metaData);
            }
        }
        return returnMap;
    }
public Map<String, ChangeParameterMetaData> getRequiredParameters(Database database) {
        Map<String, ChangeParameterMetaData> returnMap = new HashMap<>();

        for (ChangeParameterMetaData metaData : parameters.values()) {
            if (metaData.isRequiredFor(database)) {
                returnMap.put(metaData.getParameterName(), metaData);
            }
        }
        return returnMap;
    }
public Map < String , ChangeParameterMetaData > getRequiredParameters ( Database database ) { Map < String , ChangeParameterMetaData > returnMap = new HashMap <> ( ) ; for ( ChangeParameterMetaData metaData : parameters . values ( ) ) { if ( metaData . isRequiredFor ( database ) ) { returnMap . put ( metaData . getParameterName ( ) , metaData ) ; } } return returnMap ; }
Returns the required parameters for this change for the given database. Will never return a null map, only an empty or populated map.
Returns the required parameters for this change for the given database . Will never return a null map only an empty or populated map .