Union (platform/sdk 5.6.1.0 API)

java.lang.Object
- com.attivio.sdk.search.fields.FieldExpression
- - com.attivio.sdk.search.fields.MultiaryFieldExpression
  - - com.attivio.sdk.search.fields.Union

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable
```
public class Union
extends MultiaryFieldExpression
```
Union field values for multiple sub expressions.
This field returned for this FieldExpression will be a multi-value field containing all values for all input fields. The order of the returned field values is not defined. NOTE: the data type of the returned field will be the most lenient data type of all sub FieldExpressions. That is, if the child field expressions are of the data types INT, STRING, DOUBLE, then the returned field will be a STRING field.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class com.attivio.sdk.search.fields.MultiaryFieldExpression
  MultiaryFieldExpression.Method
- Nested classes/interfaces inherited from class com.attivio.sdk.search.fields.FieldExpression
  FieldExpression.StringMode

Field Summary
- Fields inherited from class com.attivio.sdk.search.fields.MultiaryFieldExpression
  args
- Fields inherited from class com.attivio.sdk.search.fields.FieldExpression
  EMPTY_ARRAY

Constructor Summary

Constructors
Constructor Description

Union()

Union(FieldExpression... args)

Union(java.util.List<? extends FieldExpression> args)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Union`	`clone()`
`protected Union`	`clone(FieldExpression... x)`	Create a new instance of this FieldExpression, with different arguments.
`boolean`	`equals(java.lang.Object other)`
`SchemaField.Type`	`getType(Schema schema)`	Resolve the type for this expression.
`int`	`hashCode()`
`protected void`	`toString(java.lang.StringBuilder buffer, FieldExpression.StringMode mode)`	Writes the string representation of this field expression to `buffer`.
`static Union`	`valueOf(StringParser parser)`

Methods inherited from class com.attivio.sdk.search.fields.MultiaryFieldExpression
forEachField, getArgument, getArgumentCount, getArguments, hasChildren, isConstant, rewrite, setArguments, setArguments, setArguments

Methods inherited from class com.attivio.sdk.search.fields.FieldExpression
apply, copyOf, forEachPhrase, forEachQuery, getDefaultName, getFieldName, isConstant, parse, quote, rewrite, rewriteChildren, toString, toString, valueOf

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

Constructor Detail

Union
```
public Union()
```

Union

public Union(java.util.List<? extends FieldExpression> args)

Union

public Union(FieldExpression... args)

Method Detail
- getType
```
public SchemaField.Type getType(Schema schema)
```
  Resolve the type for this expression.
  
  Specified by:
  
  getType in class FieldExpression
- toString
```
protected void toString(java.lang.StringBuilder buffer,
                        FieldExpression.StringMode mode)
```
  Writes the string representation of this field expression to buffer.
  
  Specified by:
  
  toString in class FieldExpression
- equals
```
public boolean equals(java.lang.Object other)
```
  Overrides:
  
  equals in class MultiaryFieldExpression
- hashCode
```
public int hashCode()
```
  Overrides:
  
  hashCode in class MultiaryFieldExpression
- clone
```
public Union clone()
```
  Overrides:
  
  clone in class FieldExpression
- clone
```
protected Union clone(FieldExpression... x)
```
  Create a new instance of this FieldExpression, with different arguments.
  
  Specified by:
  
  clone in class MultiaryFieldExpression
- valueOf
```
public static Union valueOf(StringParser parser)
```