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Query.FilterPredicate (Google App Engine API for Java)

java.lang.Object
- com.google.appengine.api.datastore.Query.Filter
- - com.google.appengine.api.datastore.Query.FilterPredicate

All Implemented Interfaces:

java.io.Serializable

Enclosing class:

Query
```
public static final class Query.FilterPredicate
extends Query.Filter
```
A Query.Filter on a single property.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description
`FilterPredicate(java.lang.String propertyName, Query.FilterOperator operator, java.lang.Object value)` Constructs a filter predicate from the given parameters.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`equals(java.lang.Object o)`
`Query.FilterOperator`	`getOperator()` Gets the operator describing how to apply the filter.
`java.lang.String`	`getPropertyName()` Gets the name of the property to be filtered on.
`java.lang.Object`	`getValue()` Gets the argument to the filter operator.
`int`	`hashCode()`
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - FilterPredicate
```
public FilterPredicate(java.lang.String propertyName,
                       Query.FilterOperator operator,
                       java.lang.Object value)
```
    Constructs a filter predicate from the given parameters.
    
    Parameters:
    
    propertyName - the name of the property on which to filter
    
    operator - the operator to apply
    
    value - A single instances of a supported type or if operator is Query.FilterOperator.IN a non-empty Iterable object containing instances of supported types.
    
    Throws:
    
    java.lang.IllegalArgumentException - If the provided filter values are not supported.
    
    See Also:
    
    DataTypeUtils.isSupportedType(Class)
- Method Detail
  - getPropertyName
```
public java.lang.String getPropertyName()
```
    Gets the name of the property to be filtered on.
  - getOperator
```
public Query.FilterOperator getOperator()
```
    Gets the operator describing how to apply the filter.
  - getValue
```
public java.lang.Object getValue()
```
    Gets the argument to the filter operator.
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-06-16 UTC.

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Class Query.FilterPredicate

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

FilterPredicate

Method Detail

getPropertyName

getOperator

getValue

equals

hashCode

toString

Query.FilterPredicate (Google App Engine API for Java)