类 ExecutionContext

构造器详细资料

• ExecutionContext

  public ExecutionContext()

  Default constructor. Initializes a new execution context with an empty internal map.

• ExecutionContext

  public ExecutionContext​(java.util.Map<java.lang.String,​java.lang.Object> map)

  Initializes a new execution context with the contents of another map.

  参数:

  map - Initial contents of context.

• ExecutionContext

  public ExecutionContext​(ExecutionContext executionContext)

  Initializes a new ExecutionContext with the contents of another ExecutionContext.

  参数:

  executionContext - containing the entries to be copied to this current context.

方法详细资料

• putString

  public void putString​(java.lang.String key,
                        @Nullable
                        java.lang.String value)

  Adds a String value to the context. Putting null value for a given key removes the key.

  参数:

  key - Key to add to context

  value - Value to associate with key

• putLong

  public void putLong​(java.lang.String key,
                      long value)

  Adds a Long value to the context.

  参数:

  key - Key to add to context

  value - Value to associate with key

• putInt

  public void putInt​(java.lang.String key,
                     int value)

  Adds an Integer value to the context.

  参数:

  key - Key to add to context

  value - Value to associate with key

• putDouble

  public void putDouble​(java.lang.String key,
                        double value)

  Add a Double value to the context.

  参数:

  key - Key to add to context

  value - Value to associate with key

• put

  public void put​(java.lang.String key,
                  @Nullable
                  java.lang.Object value)

  Add an Object value to the context. Putting null value for a given key removes the key.

  参数:

  key - Key to add to context

  value - Value to associate with key

• isDirty

  public boolean isDirty()

  Indicates if context has been changed with a "put" operation since the dirty flag was last cleared. Note that the last time the flag was cleared might correspond to creation of the context.

  返回:

  True if "put" operation has occurred since flag was last cleared

• getString

  public java.lang.String getString​(java.lang.String key)

  Typesafe Getter for the String represented by the provided key.

  参数:

  key - The key to get a value for

  返回:

  The String value

• getString

  public java.lang.String getString​(java.lang.String key,
                                    java.lang.String defaultString)

  Typesafe Getter for the String represented by the provided key with default value to return if key is not represented.

  参数:

  key - The key to get a value for

  defaultString - Default to return if key is not represented

  返回:

  The String value if key is represented, specified default otherwise

• getLong

  public long getLong​(java.lang.String key)

  Typesafe Getter for the Long represented by the provided key.

  参数:

  key - The key to get a value for

  返回:

  The Long value

• getLong

  public long getLong​(java.lang.String key,
                      long defaultLong)

  Typesafe Getter for the Long represented by the provided key with default value to return if key is not represented.

  参数:

  key - The key to get a value for

  defaultLong - Default to return if key is not represented

  返回:

  The long value if key is represented, specified default otherwise

• getInt

  public int getInt​(java.lang.String key)

  Typesafe Getter for the Integer represented by the provided key.

  参数:

  key - The key to get a value for

  返回:

  The Integer value

• getInt

  public int getInt​(java.lang.String key,
                    int defaultInt)

  Typesafe Getter for the Integer represented by the provided key with default value to return if key is not represented.

  参数:

  key - The key to get a value for

  defaultInt - Default to return if key is not represented

  返回:

  The int value if key is represented, specified default otherwise

• getDouble

  public double getDouble​(java.lang.String key)

  Typesafe Getter for the Double represented by the provided key.

  参数:

  key - The key to get a value for

  返回:

  The Double value

• getDouble

  public double getDouble​(java.lang.String key,
                          double defaultDouble)

  Typesafe Getter for the Double represented by the provided key with default value to return if key is not represented.

  参数:

  key - The key to get a value for

  defaultDouble - Default to return if key is not represented

  返回:

  The double value if key is represented, specified default otherwise

• get

  @Nullable
  public java.lang.Object get​(java.lang.String key)

  Getter for the value represented by the provided key.

  参数:

  key - The key to get a value for

  返回:

  The value represented by the given key or null if the key is not present

• isEmpty

  public boolean isEmpty()

  Indicates whether or not the context is empty.

  返回:

  True if the context has no entries, false otherwise.

  另请参阅:

  Map.isEmpty()

• clearDirtyFlag

  public void clearDirtyFlag()

  Clears the dirty flag.

• entrySet

  public java.util.Set<java.util.Map.Entry<java.lang.String,​java.lang.Object>> entrySet()

  Returns the entry set containing the contents of this context.

  返回:

  A set representing the contents of the context

  另请参阅:

  Map.entrySet()

• containsKey

  public boolean containsKey​(java.lang.String key)

  Indicates whether or not a key is represented in this context.

  参数:

  key - Key to check existence for

  返回:

  True if key is represented in context, false otherwise

  另请参阅:

  Map.containsKey(Object)

• remove

  @Nullable
  public java.lang.Object remove​(java.lang.String key)

  Removes the mapping for a key from this context if it is present.

  参数:

  key - String that identifies the entry to be removed from the context.

  返回:

  the value that was removed from the context.

  另请参阅:

  Map.remove(Object)

• containsValue

  public boolean containsValue​(java.lang.Object value)

  Indicates whether or not a value is represented in this context.

  参数:

  value - Value to check existence for

  返回:

  True if value is represented in context, false otherwise

  另请参阅:

  Map.containsValue(Object)

• equals

  public boolean equals​(java.lang.Object obj)

  覆盖:

  equals 在类中 java.lang.Object

• hashCode

  public int hashCode()

  覆盖:

  hashCode 在类中 java.lang.Object

• toString

  public java.lang.String toString()

  覆盖:

  toString 在类中 java.lang.Object

• size

  public int size()

  Returns number of entries in the context

  返回:

  Number of entries in the context

  另请参阅:

  Map.size()