com.reportmill.base

Class RMMapUtils

java.lang.Object

com.reportmill.base.RMMapUtils

public class RMMapUtils
extends java.lang.Object

Utility methods for use with Java.util.Map.

Constructor Summary

Constructors

Constructor and Description
RMMapUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.Object	anyElement(java.util.Map aMap) Returns any element from a map.
static <K,V> boolean	boolValue(java.util.Map<K,V> aMap, K aKey) Returns a key value interpreted as a boolean.
static <K,V> boolean	boolValue(java.util.Map<K,V> aMap, K aKey, boolean defaultValue) Returns a key value interpreted as a boolean (with optional default value).
static java.util.Map	clone(java.util.Map aMap) Clones a map.
static <K,V> float	floatValue(java.util.Map<K,V> aMap, K aKey) Returns a key value interpreted as a float.
static <K,V> float	floatValue(java.util.Map<K,V> aMap, K aKey, float defaultValue) Returns a key value interpreted as a float (with optional default value).
static <K,V> V	get(java.util.Map<K,V> aMap, K aKey) Returns value for aKey in given map (accepts null map).
static <K,V> V	get(java.util.Map<K,V> aMap, K aKey, V defaultValue) Returns value for aKey in given map with an optional default value for missing keys.
static java.lang.Object	getKey(java.util.Map aMap, java.lang.Object aValue) Returns the key for a given object in the given map.
static java.lang.Object	getKeyId(java.util.Map aMap, java.lang.Object aValue) Returns the key for a given identical object in the given map.
static <K,V> int	intValue(java.util.Map<K,V> aMap, K aKey) Returns a key value interpreted as an int.
static <K,V> int	intValue(java.util.Map<K,V> aMap, K aKey, int defaultValue) Returns a key value interpreted as an int (with optional default value).
static java.util.Map	newMap(java.lang.Object... theKeyValues) Creates a new map with given args in key/value sequence.
static java.util.Map	newMap(java.lang.Object aKey, java.lang.Object anObj) Creates a new map for given key and object.
static <K,V> V	put(java.util.Map<K,V> aMap, K aKey, V aValue) Adds given key and value to given map (removes key if value is null).
static java.util.Map	putAllIfAbsent(java.util.Map m1, java.util.Map m2, boolean copyIfAbsent) Same as putAll, but only adds absent keys (option to copy if there are absent keys).
static int	size(java.util.Map aMap) Returns the size of given map (accepts null map).
static java.lang.String	toStringSafe(java.util.Map aMap) Returns a string representation of map that doesn't recurse.

Methods inherited from class java.lang.Object

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

Constructor Detail

RMMapUtils

public RMMapUtils()

Method Detail

newMap

public static java.util.Map newMap(java.lang.Object aKey,
                   java.lang.Object anObj)

Creates a new map for given key and object.

newMap

public static java.util.Map newMap(java.lang.Object... theKeyValues)

Creates a new map with given args in key/value sequence.

size

public static int size(java.util.Map aMap)

Returns the size of given map (accepts null map).

get

public static <K,V> V get(java.util.Map<K,V> aMap,
          K aKey)

Returns value for aKey in given map (accepts null map).

get

public static <K,V> V get(java.util.Map<K,V> aMap,
          K aKey,
          V defaultValue)

Returns value for aKey in given map with an optional default value for missing keys.

put

public static <K,V> V put(java.util.Map<K,V> aMap,
          K aKey,
          V aValue)

Adds given key and value to given map (removes key if value is null).

clone

public static java.util.Map clone(java.util.Map aMap)

Clones a map.

boolValue

public static <K,V> boolean boolValue(java.util.Map<K,V> aMap,
                      K aKey)

Returns a key value interpreted as a boolean.

boolValue

public static <K,V> boolean boolValue(java.util.Map<K,V> aMap,
                      K aKey,
                      boolean defaultValue)

Returns a key value interpreted as a boolean (with optional default value).

intValue

public static <K,V> int intValue(java.util.Map<K,V> aMap,
                 K aKey)

Returns a key value interpreted as an int.

intValue

public static <K,V> int intValue(java.util.Map<K,V> aMap,
                 K aKey,
                 int defaultValue)

Returns a key value interpreted as an int (with optional default value).

floatValue

public static <K,V> float floatValue(java.util.Map<K,V> aMap,
                     K aKey)

Returns a key value interpreted as a float.

floatValue

public static <K,V> float floatValue(java.util.Map<K,V> aMap,
                     K aKey,
                     float defaultValue)

Returns a key value interpreted as a float (with optional default value).

putAllIfAbsent

public static java.util.Map putAllIfAbsent(java.util.Map m1,
                           java.util.Map m2,
                           boolean copyIfAbsent)

Same as putAll, but only adds absent keys (option to copy if there are absent keys).

getKey

public static java.lang.Object getKey(java.util.Map aMap,
                      java.lang.Object aValue)

Returns the key for a given object in the given map.

getKeyId

public static java.lang.Object getKeyId(java.util.Map aMap,
                        java.lang.Object aValue)

Returns the key for a given identical object in the given map.

anyElement

public static java.lang.Object anyElement(java.util.Map aMap)

Returns any element from a map.

toStringSafe

public static java.lang.String toStringSafe(java.util.Map aMap)

Returns a string representation of map that doesn't recurse.