PromiseMap (Grails 2.4.3)

grails.async.PromiseMap

All Implemented Interfaces and Traits:

Promise
```
@groovy.transform.CompileStatic
class PromiseMap
extends java.lang.Object
```
A map-like structure for promises that allows waiting for all values in the map to be populated before executing a callback
Authors:
Graeme Rocher
Since:
2.3

Field Summary

Fields
Modifiers	Name	Description
`protected java.util.LinkedHashMap<K, Promise>`	`promises`
`protected java.util.LinkedHashMap<Promise, K>`	`promisesKeys`

Constructor Summary

Constructors
Constructor and description
`PromiseMap ()`
`PromiseMap (java.util.Map<K, java.lang.Object> values)`

Methods Summary

Methods
Type	Name and description
`boolean`	`containsKey(K o)` @param o The key
`Promise`	`get(K o)` Gets a promise instance for the given key
`java.util.Map<K, V>`	`get()` Synchronously return the populated map with all values obtained from promises used inside the populated map
`java.util.Map<K, V>`	`get(long timeout, java.util.concurrent.TimeUnit units)` Synchronously return the populated map with all values obtained from promises used inside the populated map
`Promise`	`getAt(K o)` Gets a promise instance for the given key
`boolean`	`isEmpty()` @return Whether the map is empty
`Promise<java.util.Map<K, V>>`	`leftShift(groovy.lang.Closure callable)`
`Promise<java.util.Map<K, V>>`	`onComplete(groovy.lang.Closure callable)`
`Promise<java.util.Map<K, V>>`	`onError(groovy.lang.Closure callable)`
`Promise`	`put(K k, java.lang.Object value)` Put any value and return a promise for that value
`Promise`	`put(K k, Promise promise)` Adds a promise for the given key
`Promise`	`put(K k, groovy.lang.Closure callable)` Adds a promise for the given key
`Promise`	`putAt(java.lang.String k, Promise promise)` Adds a promise for the given key
`Promise`	`putAt(java.lang.String k, groovy.lang.Closure promise)` Adds a promise for the given key
`Promise`	`putAt(java.lang.String k, java.lang.Object value)` Adds a promise for the given key
`Promise`	`putAt(java.lang.Integer k, Promise promise)` Adds a promise for the given key
`Promise`	`putAt(java.lang.Integer k, groovy.lang.Closure promise)` Adds a promise for the given key
`int`	`size()` @return The size the map
`Promise<java.util.Map<K, V>>`	`then(groovy.lang.Closure callable)`

Inherited Methods Summary

Inherited Methods
Methods inherited from class	Name
`class java.lang.Object`	`java.lang.Object#wait(long, int), java.lang.Object#wait(long), java.lang.Object#wait(), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll()`

- Field Detail
  - protected java.util.LinkedHashMap<K, Promise> promises
  - protected java.util.LinkedHashMap<Promise, K> promisesKeys
- Constructor Detail
  - PromiseMap()
  - PromiseMap(java.util.Map<K, java.lang.Object> values)
- Method Detail
  - boolean containsKey(K o)
    
    Parameters:
    o - The key
    Returns:
    Whether the promise map contains the given key
  - Promise get(K o)
    
    Gets a promise instance for the given key
    Parameters:
    o - The key
    Returns:
    A promise
  - java.util.Map<K, V> get()
    
    Synchronously return the populated map with all values obtained from promises used inside the populated map
    Returns:
    A map where the values are obtained from the promises
  - java.util.Map<K, V> get(long timeout, java.util.concurrent.TimeUnit units)
    
    Synchronously return the populated map with all values obtained from promises used inside the populated map
    Parameters:
    timeout - The timeout period
    units - The timeout units
    Returns:
    A map where the values are obtained from the promises
  - Promise getAt(K o)
    
    Gets a promise instance for the given key
    Parameters:
    o - The key
    Returns:
    A promise
  - boolean isEmpty()
    
    Returns:
    Whether the map is empty
  - Promise<java.util.Map<K, V>> leftShift(groovy.lang.Closure callable)
  - Promise<java.util.Map<K, V>> onComplete(groovy.lang.Closure callable)
  - Promise<java.util.Map<K, V>> onError(groovy.lang.Closure callable)
  - Promise put(K k, java.lang.Object value)
    
    Put any value and return a promise for that value
    Parameters:
    k - The key
    value - The value
    Returns:
    The promise
  - Promise put(K k, Promise promise)
    
    Adds a promise for the given key
    Parameters:
    k - The key
    promise - The promise
    Returns:
    The previous promise
  - Promise put(K k, groovy.lang.Closure callable)
    
    Adds a promise for the given key
    Parameters:
    k - The key
    promise - The promise
    Returns:
    The previous promise
  - Promise putAt(java.lang.String k, Promise promise)
    
    Adds a promise for the given key
    Parameters:
    k - The key
    promise - The promise
    Returns:
    The previous promise
  - Promise putAt(java.lang.String k, groovy.lang.Closure promise)
    
    Adds a promise for the given key
    Parameters:
    k - The key
    promise - The promise
    Returns:
    The previous promise
  - Promise putAt(java.lang.String k, java.lang.Object value)
    
    Adds a promise for the given key
    Parameters:
    k - The key
    promise - The promise
    Returns:
    The previous promise
  - Promise putAt(java.lang.Integer k, Promise promise)
    
    Adds a promise for the given key
    Parameters:
    k - The key
    promise - The promise
    Returns:
    The previous promise
  - Promise putAt(java.lang.Integer k, groovy.lang.Closure promise)
    
    Adds a promise for the given key
    Parameters:
    k - The key
    promise - The promise
    Returns:
    The previous promise
  - int size()
    
    Returns:
    The size the map
  - Promise<java.util.Map<K, V>> then(groovy.lang.Closure callable)

Summary:
Field
Constructor
Method

| Detail:
Field
Constructor
Method

Groovy Documentation

[Groovy] Class PromiseMap<K, V>

Field Summary

Constructor Summary

Methods Summary

Inherited Methods Summary

Field Detail

protected java.util.LinkedHashMap<K, Promise> promises

protected java.util.LinkedHashMap<Promise, K> promisesKeys

Constructor Detail

PromiseMap()

PromiseMap(java.util.Map<K, java.lang.Object> values)

Method Detail

boolean containsKey(K o)

Promise get(K o)

java.util.Map<K, V> get()

java.util.Map<K, V> get(long timeout, java.util.concurrent.TimeUnit units)

Promise getAt(K o)

boolean isEmpty()

Promise<java.util.Map<K, V>> leftShift(groovy.lang.Closure callable)

Promise<java.util.Map<K, V>> onComplete(groovy.lang.Closure callable)

Promise<java.util.Map<K, V>> onError(groovy.lang.Closure callable)

Promise put(K k, java.lang.Object value)

Promise put(K k, Promise promise)

Promise put(K k, groovy.lang.Closure callable)

Promise putAt(java.lang.String k, Promise promise)

Promise putAt(java.lang.String k, groovy.lang.Closure promise)

Promise putAt(java.lang.String k, java.lang.Object value)

Promise putAt(java.lang.Integer k, Promise promise)

Promise putAt(java.lang.Integer k, groovy.lang.Closure promise)

int size()

Promise<java.util.Map<K, V>> then(groovy.lang.Closure callable)