Modifier and Type	Class and Description
private class	Cache.Entries
private static class	Cache.FutureAndDelay

Modifier and Type	Field and Description
private static final Cache.FutureAndDelay	CANCELLED
private static final Future<?>	CANCELLED_FUTURE
private static final AtomicReferenceFieldUpdater<Cache.Entries, Cache.FutureAndDelay>	FUTURE_UPDATER
pack-priv static final int	MAX_SUPPORTED_TTL_SECS
private final ConcurrentMap<String, Cache<E>.Entries>	resolveCache

Access	Constructor and Description
pack-priv	Cache()

Modifier and Type	Method and Description
pack-priv final void	cache(String hostname, E value, int ttl, EventLoop loop) Cache a value for the given hostname that will automatically expire once the TTL is reached.
pack-priv final void	clear() Remove everything from the cache.
pack-priv final boolean	clear(String hostname) Clear all entries (if anything exists) for the given hostname and return `true` if anything was removed.
protected abstract boolean	equals(E entry, E otherEntry) Returns `true` if both entries are equal.
pack-priv final List<? extends E>	get(String hostname) Returns all caches entries for the given hostname.
protected abstract boolean	shouldReplaceAll(E entry) Returns `true` if this entry should replace all other entries that are already cached for the hostname.
pack-priv final int	size() Return the number of hostnames for which we have cached something.
protected void	sortEntries(String hostname, List<E> entries) Sort the `List` for a `hostname` before caching these.

CANCELLED	back to summary
private static final Cache.FutureAndDelay CANCELLED

CANCELLED_FUTURE	back to summary
private static final Future<?> CANCELLED_FUTURE

FUTURE_UPDATER	back to summary
private static final AtomicReferenceFieldUpdater<Cache.Entries, Cache.FutureAndDelay> FUTURE_UPDATER

MAX_SUPPORTED_TTL_SECS	back to summary
pack-priv static final int MAX_SUPPORTED_TTL_SECS

resolveCache	back to summary
private final ConcurrentMap<String, Cache<E>.Entries> resolveCache

Cache	back to summary
pack-priv Cache()

cache	back to summary
pack-priv final void cache(String hostname, E value, int ttl, EventLoop loop) Cache a value for the given hostname that will automatically expire once the TTL is reached.

clear	back to summary
pack-priv final void clear() Remove everything from the cache.

clear	back to summary
pack-priv final boolean clear(String hostname) Clear all entries (if anything exists) for the given hostname and return `true` if anything was removed.

equals	back to summary
protected abstract boolean equals(E entry, E otherEntry) Returns `true` if both entries are equal.

get	back to summary
pack-priv final List<? extends E> get(String hostname) Returns all caches entries for the given hostname.

shouldReplaceAll	back to summary
protected abstract boolean shouldReplaceAll(E entry) Returns `true` if this entry should replace all other entries that are already cached for the hostname.

size	back to summary
pack-priv final int size() Return the number of hostnames for which we have cached something.

sortEntries	back to summary
protected void sortEntries(String hostname, List<E> entries) Sort the `List` for a `hostname` before caching these.

Modifier and Type	Field and Description
pack-priv volatile Cache.FutureAndDelay	expirationFuture
private final String	hostname

Access	Constructor and Description
pack-priv	Entries(String hostname)

Modifier and Type	Method and Description
pack-priv void	add(E e, int ttl, EventLoop loop)
pack-priv boolean	clearAndCancel()
public void	run() Implements java.lang.Runnable.run. Runs this operation.
private void	scheduleCacheExpirationIfNeeded(int ttl, EventLoop loop)

expirationFuture	back to summary
pack-priv volatile Cache.FutureAndDelay expirationFuture

hostname	back to summary
private final String hostname

Entries	back to summary
pack-priv Entries(String hostname)

add	back to summary
pack-priv void add(E e, int ttl, EventLoop loop)

clearAndCancel	back to summary
pack-priv boolean clearAndCancel()

run	back to summary
public void run() Implements java.lang.Runnable.run. Doc from java.lang.Runnable.run. Runs this operation. Annotations @Override

scheduleCacheExpirationIfNeeded	back to summary
private void scheduleCacheExpirationIfNeeded(int ttl, EventLoop loop)

private final Class Cache.FutureAndDelay

Class Inheritance

extends Object
implements Delayed

java.lang.Object
io.netty5.resolver.dns.Cache.FutureAndDelay

All Implemented Interfaces

java.util.concurrent.Delayed, java.lang.Comparable

Field Summary

Modifier and Type	Field and Description
pack-priv final long	deadlineNanos
pack-priv final Future<?>	future

Constructor Summary

Access	Constructor and Description
private	FutureAndDelay(Future<?> future, int ttl)

Method Summary

Modifier and Type	Method and Description
pack-priv void	cancel()
public int	compareTo(Delayed the object to be compared. other) Implements java.lang.Comparable.compareTo. Compares this object with the specified object for order.
public boolean	equals(Object the reference object with which to compare. o) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public long	getDelay(TimeUnit the time unit unit) Implements java.util.concurrent.Delayed.getDelay. Returns the remaining delay associated with this object, in the given time unit.
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for the object.

Inherited from java.lang.Object:: clone finalize getClass notify notifyAll toString wait wait wait

Field Detail

deadlineNanos	back to summary
pack-priv final long deadlineNanos

future	back to summary
pack-priv final Future<?> future

Constructor Detail

FutureAndDelay	back to summary
private FutureAndDelay(Future<?> future, int ttl)

Method Detail

cancel	back to summary
pack-priv void cancel()

compareTo back to summary

compareTo	back to summary
public int compareTo(Delayed other) Implements java.lang.Comparable.compareTo. Doc from java.lang.Comparable.compareTo. Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object. The implementor must ensure `signum(x.compareTo(y)) == -signum(y.compareTo(x))` for all `x` and `y`. (This implies that `x.compareTo(y)` must throw an exception if and only if `y.compareTo(x)` throws an exception.) The implementor must also ensure that the relation is transitive: `(x.compareTo(y) > 0 && y.compareTo(z) > 0)` implies `x.compareTo(z) > 0`. Finally, the implementor must ensure that `x.compareTo(y)==0` implies that `signum(x.compareTo(z)) == signum(y.compareTo(z))`, for all `z`. Parameters other:Delayed the object to be compared. Returns:int a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object. Annotations @Override

public int compareTo(Delayed other)

Implements java.lang.Comparable.compareTo.

Doc from java.lang.Comparable.compareTo.

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

The implementor must ensure signum(x.compareTo(y)) == -signum(y.compareTo(x)) for all x and y. (This implies that x.compareTo(y) must throw an exception if and only if y.compareTo(x) throws an exception.)

The implementor must also ensure that the relation is transitive: (x.compareTo(y) > 0 && y.compareTo(z) > 0) implies x.compareTo(z) > 0.

Finally, the implementor must ensure that x.compareTo(y)==0 implies that signum(x.compareTo(z)) == signum(y.compareTo(z)), for all z.

Parameters

other:Delayed: the object to be compared.

Returns:int

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

Annotations

@Override

equals back to summary

equals	back to summary
public boolean equals(Object o) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Parameters o:Object the reference object with which to compare. Returns:boolean `true` if this object is the same as the obj argument; `false` otherwise. Annotations @Override

public boolean equals(Object o)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

o:Object: the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

getDelay	back to summary
public long getDelay(TimeUnit unit) Implements java.util.concurrent.Delayed.getDelay. Doc from java.util.concurrent.Delayed.getDelay. Returns the remaining delay associated with this object, in the given time unit. Parameters unit:TimeUnit the time unit Returns:long the remaining delay; zero or negative values indicate that the delay has already elapsed Annotations @Override

getDelay

back to summary

public long getDelay(TimeUnit unit)

Implements java.util.concurrent.Delayed.getDelay.

Doc from java.util.concurrent.Delayed.getDelay.

Returns the remaining delay associated with this object, in the given time unit.

Parameters

unit:TimeUnit: the time unit

Returns:long

the remaining delay; zero or negative values indicate that the delay has already elapsed

Annotations

@Override

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Returns:int a hash code value for this object. Annotations @Override

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object.

Annotations

@Override

pack-priv abstract Class Cache<E>

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Class Cache.Entries

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Class Cache.FutureAndDelay

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail