Package org.neo4j.ogm.cypher.function

Class PropertyComparison

java.lang.Object

org.neo4j.ogm.cypher.function.PropertyComparison

All Implemented Interfaces:

FilterFunction<Object>

Direct Known Subclasses:

PropertyComparison.CaseInsensitiveEqualsComparison

public class PropertyComparison
extends Object
implements FilterFunction<Object>

Author:

Jasper Blues, Michael J. Simons

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	PropertyComparison.CaseInsensitiveEqualsComparison	Internal class for modifying an EQUALS or CONTAINS comparison to ignore the case of both attribute and parameter.

Field Summary

Fields

Modifier and Type	Field	Description
protected final ComparisonOperator	operator
protected static final String	PARAMETER_NAME
protected final Object	value

Constructor Summary

Constructors

Constructor	Description
PropertyComparison(ComparisonOperator operator, Object value)

Method Summary

Modifier and Type	Method	Description
String	expression(String nodeIdentifier, String filteredProperty, UnaryOperator<String> createUniqueParameterName)	Generates a cypher expression for this function
ComparisonOperator	getOperator()
Object	getValue()
Map<String,Object>	parameters(UnaryOperator<String> createUniqueParameterName, PropertyValueTransformer valueTransformer)	Provides the map of parameters to use.

Methods inherited from class java.lang.Object

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

Field Details

PARAMETER_NAME

protected static final String PARAMETER_NAME

See Also:

• Constant Field Values

operator

protected final ComparisonOperator operator

value

protected final Object value

Constructor Details

PropertyComparison

public PropertyComparison(ComparisonOperator operator,
 Object value)

Method Details

getOperator

public ComparisonOperator getOperator()

getValue

public Object getValue()

Specified by:

getValue in interface FilterFunction<Object>

expression

public String expression(String nodeIdentifier,
 String filteredProperty,
 UnaryOperator<String> createUniqueParameterName)

Description copied from interface: FilterFunction

Generates a cypher expression for this function

Specified by:

expression in interface FilterFunction<Object>

Parameters:

nodeIdentifier - The identifier of the node to be filtered in the query

filteredProperty - The identifier of the filtered property

createUniqueParameterName - An operator to create unique parameter names, the same as in FilterFunction.parameters(UnaryOperator, PropertyValueTransformer)

Returns:

The fragment to use

parameters

public Map<String,Object> parameters(UnaryOperator<String> createUniqueParameterName,
 PropertyValueTransformer valueTransformer)

Description copied from interface: FilterFunction

Provides the map of parameters to use. It is advised to use the provided operator for creating unique parameter names

Specified by:

parameters in interface FilterFunction<Object>

Parameters:

createUniqueParameterName - An operator to create unique parameter names

valueTransformer - Transformer for adapting possible values to the domain

Returns:

The map of parameters