adql.query.operand

Class Concatenation

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

Method Summary

Modifier and Type	Method and 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.