Expression

java.lang.Object
- com.boomi.connector.api.Expression

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

GroupingExpression, SimpleExpression
```
public abstract class Expression
extends Object
implements Serializable
```
Base type for an expression in a QueryFilter.
Java class for Expression complex type.
The following schema fragment specifies the expected content contained within this class.
```
 <complexType name="Expression">
   <complexContent>
     <restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
     </restriction>
   </complexContent>
 </complexType>
 
```
See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static Expression EMPTY_INSTANCE

Constructor Summary

Constructors
Constructor Description

Expression()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`Expression`	`copy()`	Deep copies the fields of the this model into a new instance of this class and returns it.
`abstract Expression`	`copy(boolean isDeep)`	Copies the fields of the this model (optionally deeply) into a new instance of this class and returns it.
`protected Expression`	`copy(Expression nobj, boolean isDeep)`	Copies the fields of the this model (optionally deeply) into the given instance and returns it.
`boolean`	`equals(Object o)`
`int`	`hashCode()`
`String`	`toString()`

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

- Field Detail
  - EMPTY_INSTANCE
```
public static final Expression EMPTY_INSTANCE
```
- Constructor Detail
  - Expression
```
public Expression()
```
- Method Detail
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - copy
```
public Expression copy()
```
    Deep copies the fields of the this model into a new instance of this class and returns it.
  - copy
```
public abstract Expression copy(boolean isDeep)
```
    Copies the fields of the this model (optionally deeply) into a new instance of this class and returns it.
  - copy
```
protected Expression copy(Expression nobj,
                          boolean isDeep)
```
    Copies the fields of the this model (optionally deeply) into the given instance and returns it.