public < H , R > Map < String , AttributeValue > convertKey ( final H hashKey , final R rangeKey ) { final Map < String , AttributeValue > key = new LinkedHashMap < String , AttributeValue > ( 4 ) ; final DynamoDBMapperFieldModel < T , H > hk = this . < H > hashKey ( ) ; final AttributeValue hkValue = hashKey == null ? null : hk . convert ( hashKey ) ; if ( hkValue != null ) { key . put ( hk . name ( ) , hkValue ) ; } else { throw new DynamoDBMappingException ( targetType . getSimpleName ( ) + "[" + hk . name ( ) + "]; no HASH key value present" ) ; } final DynamoDBMapperFieldModel < T , R > rk = this . < R > rangeKeyIfExists ( ) ; final AttributeValue rkValue = rangeKey == null ? null : rk . convert ( rangeKey ) ; if ( rkValue != null ) { key . put ( rk . name ( ) , rkValue ) ; } else if ( rk != null ) { throw new DynamoDBMappingException ( targetType . getSimpleName ( ) + "[" + rk . name ( ) + "]; no RANGE key value present" ) ; } return key ; }
Creates a new key map from the specified hash and range key .