Package org.mvel2.jsr223
Class MvelBindings
- java.lang.Object
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- org.mvel2.jsr223.MvelBindings
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- All Implemented Interfaces:
java.util.Map<java.lang.String,java.lang.Object>
,javax.script.Bindings
public class MvelBindings extends java.lang.Object implements javax.script.Bindings
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Field Summary
Fields Modifier and Type Field Description private java.util.Map<java.lang.String,java.lang.Object>
map
TheMap
field stores the attributes.
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Constructor Summary
Constructors Constructor Description MvelBindings()
Default constructor uses aHashMap
.MvelBindings(java.util.Map<java.lang.String,java.lang.Object> m)
Constructor uses an existingMap
to store the values.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clear()
boolean
containsKey(java.lang.Object key)
Returns true if this map contains a mapping for the specified key.boolean
containsValue(java.lang.Object value)
java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.Object>>
entrySet()
java.lang.Object
get(java.lang.Object key)
Returns the value to which this map maps the specified key.boolean
isEmpty()
java.util.Set<java.lang.String>
keySet()
java.lang.Object
put(java.lang.String name, java.lang.Object value)
Sets the specified key/value in the underlyingmap
field.void
putAll(java.util.Map<? extends java.lang.String,? extends java.lang.Object> toMerge)
putAll
is implemented usingMap.putAll
.java.lang.Object
remove(java.lang.Object key)
Removes the mapping for this key from this map if it is present (optional operation).int
size()
java.util.Collection<java.lang.Object>
values()
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Constructor Detail
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MvelBindings
public MvelBindings(java.util.Map<java.lang.String,java.lang.Object> m)
Constructor uses an existingMap
to store the values.- Parameters:
m
- TheMap
backing thisSimpleBindings
.- Throws:
java.lang.NullPointerException
- if m is null
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MvelBindings
public MvelBindings()
Default constructor uses aHashMap
.
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Method Detail
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put
public java.lang.Object put(java.lang.String name, java.lang.Object value)
Sets the specified key/value in the underlyingmap
field.- Specified by:
put
in interfacejavax.script.Bindings
- Specified by:
put
in interfacejava.util.Map<java.lang.String,java.lang.Object>
- Parameters:
name
- Name of valuevalue
- Value to set.- Returns:
- Previous value for the specified key. Returns null if key was previously unset.
- Throws:
java.lang.NullPointerException
- if the name is null.java.lang.IllegalArgumentException
- if the name is empty.
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putAll
public void putAll(java.util.Map<? extends java.lang.String,? extends java.lang.Object> toMerge)
putAll
is implemented usingMap.putAll
.- Specified by:
putAll
in interfacejavax.script.Bindings
- Specified by:
putAll
in interfacejava.util.Map<java.lang.String,java.lang.Object>
- Parameters:
toMerge
- TheMap
of values to add.- Throws:
java.lang.NullPointerException
- if toMerge map is null or if some key in the map is null.java.lang.IllegalArgumentException
- if some key in the map is an empty String.
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clear
public void clear()
- Specified by:
clear
in interfacejava.util.Map<java.lang.String,java.lang.Object>
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containsKey
public boolean containsKey(java.lang.Object key)
Returns true if this map contains a mapping for the specified key. More formally, returns true if and only if this map contains a mapping for a key k such that (key==null ? k==null : key.equals(k)). (There can be at most one such mapping.)- Specified by:
containsKey
in interfacejavax.script.Bindings
- Specified by:
containsKey
in interfacejava.util.Map<java.lang.String,java.lang.Object>
- Parameters:
key
- key whose presence in this map is to be tested.- Returns:
- true if this map contains a mapping for the specified key.
- Throws:
java.lang.NullPointerException
- if key is nulljava.lang.ClassCastException
- if key is not Stringjava.lang.IllegalArgumentException
- if key is empty String
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containsValue
public boolean containsValue(java.lang.Object value)
- Specified by:
containsValue
in interfacejava.util.Map<java.lang.String,java.lang.Object>
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entrySet
public java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.Object>> entrySet()
- Specified by:
entrySet
in interfacejava.util.Map<java.lang.String,java.lang.Object>
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get
public java.lang.Object get(java.lang.Object key)
Returns the value to which this map maps the specified key. Returns null if the map contains no mapping for this key. A return value of null does not necessarily indicate that the map contains no mapping for the key; it's also possible that the map explicitly maps the key to null. The containsKey operation may be used to distinguish these two cases.More formally, if this map contains a mapping from a key k to a value v such that (key==null ? k==null : key.equals(k)), then this method returns v; otherwise it returns null. (There can be at most one such mapping.)
- Specified by:
get
in interfacejavax.script.Bindings
- Specified by:
get
in interfacejava.util.Map<java.lang.String,java.lang.Object>
- Parameters:
key
- key whose associated value is to be returned.- Returns:
- the value to which this map maps the specified key, or null if the map contains no mapping for this key.
- Throws:
java.lang.NullPointerException
- if key is nulljava.lang.ClassCastException
- if key is not Stringjava.lang.IllegalArgumentException
- if key is empty String
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isEmpty
public boolean isEmpty()
- Specified by:
isEmpty
in interfacejava.util.Map<java.lang.String,java.lang.Object>
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keySet
public java.util.Set<java.lang.String> keySet()
- Specified by:
keySet
in interfacejava.util.Map<java.lang.String,java.lang.Object>
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remove
public java.lang.Object remove(java.lang.Object key)
Removes the mapping for this key from this map if it is present (optional operation). More formally, if this map contains a mapping from key k to value v such that(key==null ? k==null : key.equals(k))
, that mapping is removed. (The map can contain at most one such mapping.)Returns the value to which the map previously associated the key, or null if the map contained no mapping for this key. (A null return can also indicate that the map previously associated null with the specified key if the implementation supports null values.) The map will not contain a mapping for the specified key once the call returns.
- Specified by:
remove
in interfacejavax.script.Bindings
- Specified by:
remove
in interfacejava.util.Map<java.lang.String,java.lang.Object>
- Parameters:
key
- key whose mapping is to be removed from the map.- Returns:
- previous value associated with specified key, or null if there was no mapping for key.
- Throws:
java.lang.NullPointerException
- if key is nulljava.lang.ClassCastException
- if key is not Stringjava.lang.IllegalArgumentException
- if key is empty String
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size
public int size()
- Specified by:
size
in interfacejava.util.Map<java.lang.String,java.lang.Object>
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values
public java.util.Collection<java.lang.Object> values()
- Specified by:
values
in interfacejava.util.Map<java.lang.String,java.lang.Object>
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