ReverseLookup.Null

java.lang.Object

com.illumon.iris.db.v2.ReverseLookup.Null

All Implemented Interfaces:: ReverseLookup

Enclosing interface:: ReverseLookup

public static class ReverseLookup.Null
extends Object
implements ReverseLookup

A null implementation of a reverse lookup, suitable for a table without any key columns.

Nested Class Summary

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.ReverseLookup
ReverseLookup.Null
Field Summary

Fields inherited from interface com.illumon.iris.db.v2.ReverseLookup
NULL
Constructor Summary

Constructors

Constructor Description

Null(String... keyColumns)

Method Summary

Modifier and Type	Method	Description
`long`	`get(Object key)`	Gets the index value where key exists in the table, or the no-entry-value if it is not found in the table.
`String[]`	`getKeyColumns()`
`long`	`getNoEntryValue()`	Returns the value that will be returned from `ReverseLookup.get(java.lang.Object)` or if no entry exists for a given key.
`long`	`getPrev(Object key)`	Gets the index value where key previously in the table, or the no-entry-value if it is was not found in the table.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- Null
  
  public Null(String... keyColumns)
Method Details
- get
  
  public long get(Object key)
  
  Description copied from interface: ReverseLookup
  
  Gets the index value where key exists in the table, or the no-entry-value if it is not found in the table.
  
  Specified by:
  
  get in interface ReverseLookup
  
  Parameters:
  
  key - a single object for a single column, or a SmartKey for multiple columns
  
  Returns:
  
  the row index where key exists in the table
- getPrev
  
  public long getPrev(Object key)
  
  Description copied from interface: ReverseLookup
  
  Gets the index value where key previously in the table, or the no-entry-value if it is was not found in the table.
  
  Specified by:
  
  getPrev in interface ReverseLookup
  
  Parameters:
  
  key - a single object for a single column, or a SmartKey for multiple columns
  
  Returns:
  
  the row index where key previously existed in the table
- getNoEntryValue
  
  public long getNoEntryValue()
  
  Description copied from interface: ReverseLookup
  
  Returns the value that will be returned from ReverseLookup.get(java.lang.Object) or if no entry exists for a given key.
  
  Specified by:
  
  getNoEntryValue in interface ReverseLookup
- getKeyColumns
  
  public String[] getKeyColumns()
  
  Specified by:
  
  getKeyColumns in interface ReverseLookup
  
  Returns:
  
  the key columns this reverse lookup is indexed on