Executes the specified operation (methode) for the informed object.
1 java.invoke
<java.invoke name='name'>
<args /> ?
<body /> !
</java.invoke>
| Attributes | |||||
|---|---|---|---|---|---|
| Name | Type | Required | Default | Description | |
| Aname | string | Name of the methode to call. | |||
| Arguments | |||||
|---|---|---|---|---|---|
| Name | Type | Required | Unique | Nullable | Description |
| Eargs | null | ||||
| Ebody | null | ||||
| Returns | |
|---|---|
| Type | Description |
| null | Any type of java type in function of the methode. |
Exceptions
attribute 'name' required
The name of the methode to use has been specified.
expected 'args' while found [...]
The arguments of the function has been specified.
expected 'body' while found [...]
The object on which the operation is executed has not been informed.
Example
Invoke the add methode of the Vector class.
Copy
<xsql-script name='java_instance_sample1'>
<body>
<set name='vector'>
<java.newInstance name='java.util.Vector' />
</set>
<java.invoke name='add'>
<args>
<arg type='int'>0</arg>
<arg type='object'>zero</arg>
</args>
<body>
<vector/>
</body>
</java.invoke>
</body>
</xsql-script>
The possible values which admites the attribute type of the label <arg> are:
boolean
char
byte
short
int
long
float
double
decimal (java.math.BigDecimal)
string (java.lang.String)
date (java.util.Date)
time (java.sql.Time)
timestamp (java.sql.Timestamp)
array (java.util.ArrayList)
map (java.util.HashMap)
objec (java.lang.Object)
Example
Invoke the methode intValue about a Number to obtain the whole value of the number. In the example the number is a decimal 2.4 and the function intValue will return the integer 2.
Copy
<xsql-script name='java_invoke_number_intValue'>
<body>
<println>
<java.invoke name='intValue'>
<args />
<body>
<number>2.4</number>
</body>
</java.invoke>
</println>
</body>
</xsql-script>