Java Object Language Elements

CALLtypeMETHOD Method

Invokes an instance method on a java object from a non-static Java method.

Category:

Method reference

Syntax
Arguments
Details
Comparisons
Example
See Also

Syntax

object.CALLtypeMETHOD ("method-name", <method-argument-1 ..., method-argument-n>, <return value>);

Arguments

object

specifies the name of the java object.

type

specifies the result type for the non-static Java method. The type can be one of the following values:

BOOLEAN: specifies that the result type is BOOLEAN.
BYTE: specifies that the result type is BYTE.
CHAR: specifies that the result type is CHAR.
DOUBLE: specifies that the result type is DOUBLE.
FLOAT: specifies that the result type is FLOAT.
INT: specifies that the result type is INT.
LONG: specifies that the result type is LONG.
SHORT: specifies that the result type is SHORT.
STRING: specifies that the result type is STRING.
VOID: specifies that the result type is VOID.

See Also:

Type Issues in SAS Language Reference: Concepts

method-name

specifies the name of the non-static Java method.

Requirement:

The method name must be enclosed in either single or double quotation marks.

method-argument

specifies the parameters to pass to the method.

return-value

specifies the return value if the method returns one.

Details

Once you instantiate a java object, you can access any non-static Java method through method calls on the java object by using the CALLtypeMETHOD method.

Note: type represents a Java data type. For more information about how Java data types relate to SAS data types, see Type Issues in SAS Language Reference: Concepts. [cautionend]

Comparisons

Use the CALLtypeMETHOD method for non-static Java methods. If the Java method is static, use the CALLSTATICtypeMETHOD method.

Example

The following example creates a simple class that contains three non-static fields. The java object j is instantiated, the field values are set and then retrieved by using the CALLtypeFIELD method .

/* Java code */
import java.util.*;
import java.lang.*;
public class ttest
{
   public int i;
   public double d;
   public string s;

   public int im()
   {
      return i;
   }

   public String sm()
   {
       return s;
   }

   public double dm()
   {
      return d;
   }
}

/*  DATA step code */
data _null_;
   dcl javaobj j("ttest");
   length val 8;
   length str $20;
    j.setIntField("i", 100);
   j.setDoubleField("d", 3.14159);
   j.setStringField("s", "abc");

   j.callIntMethod("im", val);
   put val=;
   j.callDoubleMethod("dm", val);
   put val=;
   j.callStringMethod("sm", str);
   put str=;
run;

The following lines are written to the SAS log:

val=100
val=3.14159
str=abc