Class ConditionExpression

java.lang.Object

dev.hogwai.dynamodb.simplified.expression.FilterExpression

dev.hogwai.dynamodb.simplified.expression.ConditionExpression

public class ConditionExpression
extends FilterExpression

A FilterExpression subtype that represents a DynamoDB condition expression.

This is a type-safe alias: it inherits all builder methods from FilterExpression but is accepted by APIs that require a condition expression (e.g., put, update, delete) rather than a filter expression (e.g., query, scan).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	ConditionExpression.Builder	Fluent builder for ConditionExpression.

Nested classes/interfaces inherited from class FilterExpression

FilterExpression.AttributeType

Constructor Summary

Constructors

Constructor	Description
ConditionExpression()	Creates a new empty condition expression.
ConditionExpression(FilterExpression delegate)	Creates a condition expression that copies the state from the given filter expression.

Method Summary

Modifier and Type	Method	Description
static @NonNull ConditionExpression.Builder	builder()	Creates a new builder for constructing a ConditionExpression.
static ConditionExpression	empty()	Returns an empty condition expression.
static ConditionExpression	from(@NonNull FilterExpression filterExpression)	Wraps a FilterExpression as a ConditionExpression.

Methods inherited from class FilterExpression

and, attributeType, beginsWith, between, contains, eq, exists, ge, getExpression, getExpressionNames, getExpressionValues, group, gt, in, isEmpty, le, lt, ne, nestedEq, not, notExists, or, sizeBetween, sizeEq, sizeGe, sizeGt, sizeLe, sizeLt, toSdkExpression

Methods inherited from class Object

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

Constructor Details

ConditionExpression

public ConditionExpression()

Creates a new empty condition expression.

ConditionExpression

public ConditionExpression(FilterExpression delegate)

Creates a condition expression that copies the state from the given filter expression.

Parameters:

delegate - the filter expression to copy

Method Details

empty

public static ConditionExpression empty()

Returns an empty condition expression.

Returns:

an empty condition expression

from

public static ConditionExpression from(@NonNull FilterExpression filterExpression)

Wraps a FilterExpression as a ConditionExpression.

Parameters:

filterExpression - the filter expression to wrap

Returns:

a new condition expression backed by the given filter expression

builder

public static @NonNull ConditionExpression.Builder builder()

Creates a new builder for constructing a ConditionExpression.

Returns:

a new builder