java.lang.Object
- adql.query.ADQLList<ADQLOperand>
- - adql.query.operand.Concatenation

All Implemented Interfaces:

ADQLObject, ADQLOperand, java.lang.Iterable<ADQLOperand>
```
public final class Concatenation
extends ADQLList<ADQLOperand>
implements ADQLOperand
```
Represents a concatenation in ADQL (ex: "_s_ra" || ':' || "_s_dec").

Version:

1.4 (09/2017)

Author:

Grégory Mantelet (CDS;ARI)

Nested Class Summary
- Nested classes/interfaces inherited from class adql.query.ADQLList
  ADQLList.ADQLListIterator

Constructor Summary

Constructors
Constructor Description

Concatenation()
Builds an empty concatenation.

Concatenation(Concatenation toCopy)
Builds a copy of the given Concatenation.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ADQLObject`	`getCopy()`	Gets a (deep) copy of this ADQL object.
`java.lang.String[]`	`getPossibleSeparators()`	Gets the list of all possible separators for this `ADQLList`.
`java.lang.String`	`getSeparator(int index)`	Gets the separator between the list items index-1 and index.
`boolean`	`isGeometry()`	Tell whether this operand is a geometrical region or not.
`boolean`	`isNumeric()`	Tell whether this operand is numeric or not.
`boolean`	`isString()`	Tell whether this operand is a string or not.
`java.lang.String`	`toADQL()`	Gets the ADQL expression of this object.

Methods inherited from class adql.query.ADQLList
add, add, adqlIterator, clear, get, getName, getPosition, isEmpty, iterator, remove, set, setPosition, size

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

Methods inherited from interface adql.query.ADQLObject
adqlIterator, getName, getPosition

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- Constructor Detail
  - Concatenation
```
public Concatenation()
```
    Builds an empty concatenation. To add operands, use the "add" functions.
  - Concatenation
```
public Concatenation(Concatenation toCopy)
              throws java.lang.Exception
```
    Builds a copy of the given Concatenation.
    
    Parameters:
    
    toCopy - The Concatenation to copy.
    
    Throws:
    
    java.lang.Exception - If there is an error during the copy.
- Method Detail
  - getCopy
```
public ADQLObject getCopy()
                   throws java.lang.Exception
```
    Description copied from interface: ADQLObject
    
    Gets a (deep) copy of this ADQL object.
    
    Specified by:
    
    getCopy in interface ADQLObject
    
    Specified by:
    
    getCopy in class ADQLList<ADQLOperand>
    
    Returns:
    
    The copy of this ADQL object.
    
    Throws:
    
    java.lang.Exception - If there is any error during the copy.
  - getPossibleSeparators
```
public java.lang.String[] getPossibleSeparators()
```
    Description copied from class: ADQLList
    
    Gets the list of all possible separators for this ADQLList.
    
    Specified by:
    
    getPossibleSeparators in class ADQLList<ADQLOperand>
    
    Returns:
    
    Possible separators.
  - getSeparator
```
public java.lang.String getSeparator(int index)
                              throws java.lang.ArrayIndexOutOfBoundsException
```
    Description copied from class: ADQLList
    
    Gets the separator between the list items index-1 and index.
    
    Specified by:
    
    getSeparator in class ADQLList<ADQLOperand>
    
    Parameters:
    
    index - Index of the right list item.
    
    Returns:
    
    The corresponding separator.
    
    Throws:
    
    java.lang.ArrayIndexOutOfBoundsException - If the index is less or equal than 0, or is greater or equal than size().
  - isNumeric
```
public final boolean isNumeric()
```
    Description copied from interface: ADQLOperand
    
    Tell whether this operand is numeric or not.
    
    Specified by:
    
    isNumeric in interface ADQLOperand
    
    Returns:
    
    true if this operand is numeric, false otherwise.
  - isString
```
public final boolean isString()
```
    Description copied from interface: ADQLOperand
    
    Tell whether this operand is a string or not.
    
    Specified by:
    
    isString in interface ADQLOperand
    
    Returns:
    
    true if this operand is a string, false otherwise.
  - isGeometry
```
public final boolean isGeometry()
```
    Description copied from interface: ADQLOperand
    
    Tell whether this operand is a geometrical region or not.
    
    Specified by:
    
    isGeometry in interface ADQLOperand
    
    Returns:
    
    true if this operand is a geometry, false otherwise.
  - toADQL
```
public java.lang.String toADQL()
```
    Description copied from interface: ADQLObject
    
    Gets the ADQL expression of this object.
    
    Specified by:
    
    toADQL in interface ADQLObject
    
    Overrides:
    
    toADQL in class ADQLList<ADQLOperand>
    
    Returns:
    
    The corresponding ADQL expression.

Constructor	Description
`Concatenation()`	Builds an empty concatenation.
`Concatenation(Concatenation toCopy)`	Builds a copy of the given `Concatenation`.

Class Concatenation

Nested Class Summary

Nested classes/interfaces inherited from class adql.query.ADQLList

Constructor Summary

Method Summary

Methods inherited from class adql.query.ADQLList

Methods inherited from class java.lang.Object

Methods inherited from interface adql.query.ADQLObject

Methods inherited from interface java.lang.Iterable

Constructor Detail

Concatenation

Concatenation

Method Detail

getCopy

getPossibleSeparators

getSeparator

isNumeric

isString

isGeometry

toADQL