IsEmptyString (OpenRefine 4.0-SNAPSHOT API)

java.lang.Object
- org.openrefine.grel.controls.IsEmptyString

All Implemented Interfaces:

Serializable, Control
```
public class IsEmptyString
extends Object
```
See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

IsEmptyString()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`call(Properties bindings, GrelExpr[] args)`
`String`	`checkArguments(GrelExpr[] args)`
`String`	`getDescription()`
`String`	`getParams()`
`String`	`getReturns()`
`protected boolean`	`test(Object o)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- IsEmptyString
```
public IsEmptyString()
```

Method Detail

getDescription
```
public String getDescription()
```

test
```
protected boolean test(Object o)
```

checkArguments
```
public String checkArguments(GrelExpr[] args)
```
Specified by:

checkArguments in interface Control

call

public Object call(Properties bindings,
                   GrelExpr[] args)

Specified by:: call in interface Control

getParams
```
public String getParams()
```
Specified by:

getParams in interface Control

getReturns
```
public String getReturns()
```
Specified by:

getReturns in interface Control