com.goldencode.p2j.persist

Class FastFindCache.L2Key

java.lang.Object

com.goldencode.p2j.persist.FastFindCache.L2Key

Enclosing class:

FastFindCache

private static class FastFindCache.L2Key
extends java.lang.Object

The second level key for Fast Find algorithm. It uses this class as cache key for quickly checking whether a particular record was found recently.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	fql The fql of the query which selected the keyed record.
private int	hash The precomputed hash code.
private java.util.BitSet	nonIndexedProps The set of non-indexed properties used in fql.
private int	type The type of navigation.
private java.lang.Object[]	values The substitution values.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	L2Key(java.lang.String fql, java.util.BitSet nonIndexedProps, int type, java.lang.Object[] values) The unique constructor builds the immutable key.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) Test for equality with another object.
int	hashCode() Obtain the precomputed hash code.

Methods inherited from class java.lang.Object

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

Field Detail

fql

private final java.lang.String fql

The fql of the query which selected the keyed record.

nonIndexedProps

private final java.util.BitSet nonIndexedProps

The set of non-indexed properties used in fql.

type

private final int type

The type of navigation. Must be one of FIRST, LAST or UNIQUE values of the QueryConstants

values

private final java.lang.Object[] values

The substitution values. May be null.

hash

private final int hash

The precomputed hash code.

Constructor Detail

L2Key

private L2Key(java.lang.String fql,
              java.util.BitSet nonIndexedProps,
              int type,
              java.lang.Object[] values)

The unique constructor builds the immutable key.

Parameters:

fql - The fql of the query which selected the keyed record.

nonIndexedProps - The set of non-indexed properties used in fql. May be null if fql is null or references no non-indexed properties.

type - The type of navigation. Must be one of FIRST, LAST or UNIQUE values of the QueryConstants.

values - The substitution values. May be null.

Method Detail

equals

public boolean equals(java.lang.Object o)

Test for equality with another object.

Overrides:

equals in class java.lang.Object

Parameters:

o - The other object.

Returns:

true if and only if the objects are equals.

hashCode

public int hashCode()

Obtain the precomputed hash code.

Overrides:

hashCode in class java.lang.Object

Returns:

the precomputed hash code.