com.luciad.ogc.filter.model

LuciadFusionClass TLcdOGCBinaryComparisonOperator

java.lang.Object

com.luciad.datamodel.TLcdDataObject

com.luciad.ogc.filter.model.TLcdOGCBinaryComparisonOperator

All Implemented Interfaces:

ILcdDataObject, ILcdGenericExpression, ILcdOGCCondition, ILcdCloneable, ILcdDeepCloneable, Cloneable

public class TLcdOGCBinaryComparisonOperator
extends TLcdDataObject
implements ILcdOGCCondition

This class represents the elements of type <ogc:BinaryComparisonOpType>. Namely:

• <ogc:PropertyIsEqualTo>
• <ogc:PropertyIsNotEqualTo>
• <ogc:PropertyIsGreaterThan>
• <ogc:PropertyIsGreaterOrEqualThan>
• <ogc:PropertyIsLessThan>
• <ogc:PropertyIsLessOrEqualThan>

According to the OGC Filter specification, the comparison operator is used to form expressions that evaluate the mathematical comparison between two arguments. If the arguments satisfy the comparison then the expression evaluates to TRUE. Otherwise the expression evaluates to FALSE.

A TLcdOGCBinaryComparisonOperator instance is composed of a type that must be one of the constants defined in this class, and two operands that can be any instances of ILcdOGCExpression. It also admits a matchCase property relevant in case of comparison between strings.

See Also:

ILcdOGCExpression

Field Summary

Fields

Modifier and Type	Field and Description
static int	EQUAL Comparison type that corresponds to the <ogc:PropertyIsEqualTo> element.
static int	GREATER Comparison type that corresponds to the <ogc:PropertyIsGreaterThan> element.
static int	GREATER_OR_EQUAL Comparison type that corresponds to the <ogc:PropertyIsGreaterOrEqualThan> element.
static int	LESS Comparison type that corresponds to the <ogc:PropertyIsLessThan> element.
static int	LESS_OR_EQUAL Comparison type that corresponds to the <ogc:PropertyIsLessOrEqualThan> element.
static int	NOT_EQUAL Comparison type that corresponds to the <ogc:PropertyIsNotEqualTo> element.

Constructor Summary

Constructors

Constructor and Description
TLcdOGCBinaryComparisonOperator() Default constructor.
TLcdOGCBinaryComparisonOperator(int aType) Creates an instance with a given comparison type.
TLcdOGCBinaryComparisonOperator(int aType, ILcdOGCExpression aFirstExpression, ILcdOGCExpression aSecondExpression) Creates an instance with a given comparison type and two given operands.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
ILcdOGCExpression	getFirstExpression() Gets the first operand of the comparison.
ILcdOGCExpression	getSecondExpression() Gets the second operand of the comparison.
int	getType() Gets the comparison type.
int	hashCode()
boolean	isMatchCase() Indicates whether the case must be matched in case of a comparison between strings.
void	setFirstExpression(ILcdOGCExpression aFirstExpression) Sets the first operand of the comparison.
void	setMatchCase(boolean aMatchCase) Indicates whether the case must be matched in case of a comparison between strings.
void	setSecondExpression(ILcdOGCExpression aSecondExpression) Sets the second operand of the comparison.
void	setType(int aType) Sets the comparison type.
String	toString()

Methods inherited from class com.luciad.datamodel.TLcdDataObject

clone, clone, getDataType, getValue, getValue, hasValue, hasValue, setValue, setValue

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EQUAL

public static final int EQUAL

Comparison type that corresponds to the <ogc:PropertyIsEqualTo> element.

See Also:

Constant Field Values

NOT_EQUAL

public static final int NOT_EQUAL

Comparison type that corresponds to the <ogc:PropertyIsNotEqualTo> element.

See Also:

Constant Field Values

GREATER

public static final int GREATER

Comparison type that corresponds to the <ogc:PropertyIsGreaterThan> element.

See Also:

Constant Field Values

LESS

public static final int LESS

Comparison type that corresponds to the <ogc:PropertyIsLessThan> element.

See Also:

Constant Field Values

GREATER_OR_EQUAL

public static final int GREATER_OR_EQUAL

Comparison type that corresponds to the <ogc:PropertyIsGreaterOrEqualThan> element.

See Also:

Constant Field Values

LESS_OR_EQUAL

public static final int LESS_OR_EQUAL

Comparison type that corresponds to the <ogc:PropertyIsLessOrEqualThan> element.

See Also:

Constant Field Values

Constructor Detail

TLcdOGCBinaryComparisonOperator

public TLcdOGCBinaryComparisonOperator()

Default constructor.

TLcdOGCBinaryComparisonOperator

public TLcdOGCBinaryComparisonOperator(int aType)

Creates an instance with a given comparison type.

Parameters:

aType - the given comparison type.

TLcdOGCBinaryComparisonOperator

public TLcdOGCBinaryComparisonOperator(int aType,
                                       ILcdOGCExpression aFirstExpression,
                                       ILcdOGCExpression aSecondExpression)

Creates an instance with a given comparison type and two given operands.

Parameters:

aType - the given comparison type.

aFirstExpression - the first operand.

aSecondExpression - the second operand.

Method Detail

getType

public int getType()

Gets the comparison type.

Returns:

the comparison type.

setType

public void setType(int aType)

Sets the comparison type.

Parameters:

aType - the comparison type.

getFirstExpression

public ILcdOGCExpression getFirstExpression()

Gets the first operand of the comparison.

Returns:

the first operand of the comparison.

setFirstExpression

public void setFirstExpression(ILcdOGCExpression aFirstExpression)

Sets the first operand of the comparison.

Parameters:

aFirstExpression - the first operand of the comparison.

getSecondExpression

public ILcdOGCExpression getSecondExpression()

Gets the second operand of the comparison.

Returns:

the second operand of the comparison.

setSecondExpression

public void setSecondExpression(ILcdOGCExpression aSecondExpression)

Sets the second operand of the comparison.

Parameters:

aSecondExpression - the second operand of the comparison.

isMatchCase

public boolean isMatchCase()

Indicates whether the case must be matched in case of a comparison between strings. The default value is true.

Returns:

true if the case must be matched; false otherwise.

setMatchCase

public void setMatchCase(boolean aMatchCase)

Indicates whether the case must be matched in case of a comparison between strings. The default value is true.

Parameters:

aMatchCase - true if the case must be matched; false otherwise.

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class TLcdDataObject