public class OwExprExternalScope extends Object implements OwExprScope
External scopes are property and function domains Java API interfaces.
External scopes can be used on their own as collections of properties and functions.
This version only supports adding properties!
By extending this class custom scopes can be made available during expressions evaluation.
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Constructor and Description |
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OwExprExternalScope(String name_p)
Constructor
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Modifier and Type | Method and Description |
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void |
addScope(OwExprExternalScope externalScope_p)
Adds a sub scope to this scope.
Scopes are stored as properties of this scope. |
OwExprProperty |
at(int index_p)
Indexed scope access method
|
OwExprFunction |
function(String functionName_p,
OwExprExpressionType[] argunmentTypes_p)
Function access method.
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String |
getName() |
boolean |
hasProperty(String propertyName_p)
Property access helper method.
|
int |
length()
Indexed scope access helper method
|
protected OwExprFunction |
prelevateFunction(String functionName_p,
OwExprExpressionType[] argumentTypes_p)
Function search hook for
function(String, OwExprExpressionType[]) .Children of this class should override this method to perform custom |
protected OwExprProperty |
prelevateProperty(String propertyName_p)
Property search hook for
property(String) . |
OwExprProperty |
property(String propertyName_p)
Property access method.
|
String |
toString() |
public OwExprExternalScope(String name_p)
name_p
- the name of this scope. The scope will be referenced by this name in the evaluated expressions.public final void addScope(OwExprExternalScope externalScope_p)
externalScope_p
- the sub scope to addpublic final OwExprFunction function(String functionName_p, OwExprExpressionType[] argunmentTypes_p) throws OwExprEvaluationException
OwExprScope
function
in interface OwExprScope
functionName_p
- the name of the requested functionargunmentTypes_p
- the argument types of the requested functionOwExprEvaluationException
public final OwExprProperty property(String propertyName_p) throws OwExprEvaluationException
OwExprScope
property
in interface OwExprScope
propertyName_p
- OwExprEvaluationException
protected OwExprFunction prelevateFunction(String functionName_p, OwExprExpressionType[] argumentTypes_p) throws OwExprEvaluationException
function(String, OwExprExpressionType[])
.functionName_p
- argumentTypes_p
- null
OwExprEvaluationException
protected OwExprProperty prelevateProperty(String propertyName_p) throws OwExprEvaluationException
property(String)
.propertyName_p
- addScope(OwExprExternalScope)
or null
if no such property was addedOwExprEvaluationException
public final String getName()
public OwExprProperty at(int index_p) throws OwExprEvaluationException
OwExprScope
at
in interface OwExprScope
index_p
- int
index of the requested propertyOwExprProperty
property found at the requested indexOwExprEvaluationException
- if the requested indexed access has failed (index out of bounds,
the creation of OwExprProperty
has failed)public int length() throws OwExprEvaluationException
OwExprScope
length
in interface OwExprScope
OwExprEvaluationException
public boolean hasProperty(String propertyName_p) throws OwExprEvaluationException
OwExprScope
hasProperty
in interface OwExprScope
propertyName_p
- the name of the requested propertytrue
if this scope can perform property access for the requested property
- an access via OwExprScope.property(String)
will NOT fail on missing property grounds,
false
otherwiseOwExprEvaluationException
- if the property validity check has failedCopyright © 2014 Alfresco Business Solutions. All Rights Reserved.