adql.query.operand

Class StringConstant

java.lang.Object

adql.query.operand.StringConstant

All Implemented Interfaces:

ADQLObject, ADQLOperand

public final class StringConstant
extends java.lang.Object
implements ADQLOperand

A string constant.

Version:

1.4 (06/2015)

Author:

Grégory Mantelet (CDS;ARI)

Constructor Summary

Constructors

Constructor and Description
StringConstant(java.lang.String value)
StringConstant(StringConstant toCopy)

Method Summary

Modifier and Type	Method and Description
ADQLIterator	adqlIterator() Gets an iterator on the intern ADQL objects.
ADQLObject	getCopy() Gets a (deep) copy of this ADQL object.
java.lang.String	getName() Gets the name of this object in ADQL.
TextPosition	getPosition() Gets the position of this object/token in the ADQL query.
java.lang.String	getValue()
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.
void	setPosition(TextPosition position) Sets the position at which this StringConstant has been found in the original ADQL query string.
void	setValue(java.lang.String value)
java.lang.String	toADQL() Gets the ADQL expression of this object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StringConstant

public StringConstant(java.lang.String value)

StringConstant

public StringConstant(StringConstant toCopy)

Method Detail

getValue

public final java.lang.String getValue()

setValue

public final void setValue(java.lang.String value)

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.

getPosition

public final TextPosition getPosition()

Description copied from interface: ADQLObject

Gets the position of this object/token in the ADQL query.

By default, no position should be set.

Specified by:

getPosition in interface ADQLObject

Returns:

Position of this ADQL item in the ADQL query, or NULL if not written originally in the query (for example, if added afterwards.

setPosition

public final void setPosition(TextPosition position)

Sets the position at which this StringConstant has been found in the original ADQL query string.

Parameters:

position - Position of this StringConstant.

Since:

1.4

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.

getCopy

public ADQLObject getCopy()

Description copied from interface: ADQLObject

Gets a (deep) copy of this ADQL object.

Specified by:

getCopy in interface ADQLObject

Returns:

The copy of this ADQL object.

getName

public java.lang.String getName()

Description copied from interface: ADQLObject

Gets the name of this object in ADQL.

Specified by:

getName in interface ADQLObject

Returns:

The name of this ADQL object.

adqlIterator

public ADQLIterator adqlIterator()

Description copied from interface: ADQLObject

Gets an iterator on the intern ADQL objects.

Note:The returned iterator is particularly used by a ISearchHandler extension to browse a whole ADQL tree.

Specified by:

adqlIterator in interface ADQLObject

Returns:

An ADQL objects iterator.

See Also:

ADQLIterator, ISearchHandler

toADQL

public java.lang.String toADQL()

Description copied from interface: ADQLObject

Gets the ADQL expression of this object.

Specified by:

toADQL in interface ADQLObject

Returns:

The corresponding ADQL expression.