Class PropertyContainer (2.0.0) 

public abstract class PropertyContainer implements Serializable, Cloneable

A mutable property container.

Inheritance

Object > PropertyContainer

Implements

Serializable, Cloneable

Methods

appendPropertiesTo(StringBuilder builder)

protected void appendPropertiesTo(StringBuilder builder)
Parameter
Name Description
builder StringBuilder

clone()

protected Object clone()
Returns
Type Description
Object
Overrides

getProperties()

public Map<String,@Nullable Object> getProperties()

Gets all of the properties belonging to this container.

Returns
Type Description
Map<String,@org.checkerframework.checker.nullness.qual.Nullable java.lang.Object>

an unmodifiable Map of properties.

getProperty(String propertyName)

public @Nullable Object getProperty(String propertyName)

Gets the property with the specified name. The value returned may not be the same type as originally set via #setProperty.

Parameter
Name Description
propertyName String
Returns
Type Description
@org.checkerframework.checker.nullness.qual.Nullable java.lang.Object

the property corresponding to propertyName.

hasProperty(String propertyName)

public boolean hasProperty(String propertyName)

Returns true if a property has been set. If a property has been explicitly set to null, this function will return true.

Parameter
Name Description
propertyName String
Returns
Type Description
boolean

true iff the property named propertyName exists.

isUnindexedProperty(String propertyName)

public boolean isUnindexedProperty(String propertyName)

Returns true if propertyName has a value that will not be indexed. This includes Text, Blob, and any property added using #setUnindexedProperty.

Note: The behavior of this method is not well defined in case of an indexed property whose value is a list that contains unindexable values.

Parameter
Name Description
propertyName String
Returns
Type Description
boolean

removeProperty(String propertyName)

public void removeProperty(String propertyName)

Removes any property with the specified name. If there is no property with this name set, simply does nothing.

Parameter
Name Description
propertyName String

setIndexedProperty(String propertyName, Object value)

public void setIndexedProperty(String propertyName, Object value)

Like {link #setProperty}, but requires that the value is indexable or a collection of indexable values.

Parameters
Name Description
propertyName String
value Object

setPropertiesFrom(PropertyContainer src)

public void setPropertiesFrom(PropertyContainer src)

A convenience method that populates properties from those in the given container.

This method transfers information about unindexed properties and clones any mutable values.

Parameter
Name Description
src PropertyContainer

The container from which we will populate ourself.

setProperty(String propertyName, @Nullable Object value)

public void setProperty(String propertyName, @Nullable Object value)

Sets the property named, propertyName, to value.

As the value is stored in the datastore, it is converted to the datastore's native type. This may include widening, such as converting a Short to a Long.

If value is a Collection, the values will be stored in the datastore with the collection's iteration order with one caveat: all indexed values will come before all unindexed values (this can occur if the Collection contains both values that are normally indexed like strings, and values that are never indexed like Blob, Text and EmbeddedEntity).

Overrides any existing value for this property, whether indexed or unindexed.

Note that Blob, Text and EmbeddedEntity property values are never indexed. To store other types without being indexed, use #setUnindexedProperty. See Also: #setUnindexedProperty

Parameters
Name Description
propertyName String
value @org.checkerframework.checker.nullness.qual.Nullable java.lang.Object

may be one of the supported datatypes or a heterogeneous Collection of one of the supported datatypes.

setUnindexedProperty(String propertyName, Object value)

public void setUnindexedProperty(String propertyName, Object value)

Like #setProperty, but doesn't index the property in the built-in single property indexes or the user-defined composite indexes. See Also: #setProperty

Parameters
Name Description
propertyName String
value Object

may be one of the supported datatypes, or a heterogeneous Collection of one of the supported datatypes.

Overrides any existing value for this property, whether indexed or unindexed.