Class StructuredQuery (3.20.0)

Version latest

• 3.20.0 (latest)
• 3.17.0
• 3.16.3
• 3.15.7
• 3.14.4
• 3.13.2
• 3.12.1
• 3.11.0
• 3.10.0
• 3.9.6
• 3.8.2
• 3.7.10
• 3.6.0
• 3.5.0
• 3.4.2
• 3.3.0
• 3.2.0
• 3.1.0
• 3.0.21

public final class StructuredQuery extends GeneratedMessageV3 implements StructuredQueryOrBuilder

A Firestore query.

The query stages are executed in the following order:

1. from
2. where
3. select
4. order_by + start_at + end_at
5. offset
6. limit

Protobuf type google.firestore.v1.StructuredQuery

Inheritance

Object > AbstractMessageLite<MessageType,BuilderType> > AbstractMessage > GeneratedMessageV3 > StructuredQuery

Implements

StructuredQueryOrBuilder

Inherited Members

AbstractMessage.equals(Object)

AbstractMessage.findInitializationErrors()

AbstractMessage.getInitializationErrorString()

AbstractMessage.hashBoolean(boolean)

AbstractMessage.hashCode()

AbstractMessage.hashEnum(Internal.EnumLite)

AbstractMessage.hashEnumList(List<? extends Internal.EnumLite>)

AbstractMessage.hashFields(int,Map<Descriptors.FieldDescriptor,Object>)

AbstractMessage.hashLong(long)

AbstractMessage.toString()

AbstractMessageLite.<T>addAll(Iterable<T>,Collection<? super T>)

AbstractMessageLite.<T>addAll(Iterable<T>,List<? super T>)

AbstractMessageLite.checkByteStringIsUtf8(ByteString)

AbstractMessageLite.toByteArray()

AbstractMessageLite.toByteString()

AbstractMessageLite.writeDelimitedTo(OutputStream)

AbstractMessageLite.writeTo(OutputStream)

com.google.protobuf.GeneratedMessageV3.<ListT>makeMutableCopy(ListT)

com.google.protobuf.GeneratedMessageV3.<ListT>makeMutableCopy(ListT,int)

GeneratedMessageV3.<M>parseDelimitedWithIOException(Parser<M>,InputStream)

GeneratedMessageV3.<M>parseDelimitedWithIOException(Parser<M>,InputStream,ExtensionRegistryLite)

GeneratedMessageV3.<M>parseWithIOException(Parser<M>,CodedInputStream)

GeneratedMessageV3.<M>parseWithIOException(Parser<M>,CodedInputStream,ExtensionRegistryLite)

GeneratedMessageV3.<M>parseWithIOException(Parser<M>,InputStream)

GeneratedMessageV3.<M>parseWithIOException(Parser<M>,InputStream,ExtensionRegistryLite)

com.google.protobuf.GeneratedMessageV3.<T>emptyList(java.lang.Class<T>)

GeneratedMessageV3.<V>serializeBooleanMapTo(CodedOutputStream,MapField<Boolean,V>,MapEntry<Boolean,V>,int)

GeneratedMessageV3.<V>serializeIntegerMapTo(CodedOutputStream,MapField<Integer,V>,MapEntry<Integer,V>,int)

GeneratedMessageV3.<V>serializeLongMapTo(CodedOutputStream,MapField<Long,V>,MapEntry<Long,V>,int)

GeneratedMessageV3.<V>serializeStringMapTo(CodedOutputStream,MapField<String,V>,MapEntry<String,V>,int)

GeneratedMessageV3.canUseUnsafe()

GeneratedMessageV3.computeStringSize(int,Object)

GeneratedMessageV3.computeStringSizeNoTag(Object)

GeneratedMessageV3.emptyBooleanList()

GeneratedMessageV3.emptyDoubleList()

GeneratedMessageV3.emptyFloatList()

GeneratedMessageV3.emptyIntList()

GeneratedMessageV3.emptyLongList()

GeneratedMessageV3.getAllFields()

GeneratedMessageV3.getDescriptorForType()

GeneratedMessageV3.getField(Descriptors.FieldDescriptor)

GeneratedMessageV3.getOneofFieldDescriptor(Descriptors.OneofDescriptor)

GeneratedMessageV3.getParserForType()

GeneratedMessageV3.getRepeatedField(Descriptors.FieldDescriptor,int)

GeneratedMessageV3.getRepeatedFieldCount(Descriptors.FieldDescriptor)

GeneratedMessageV3.getSerializedSize()

GeneratedMessageV3.getUnknownFields()

GeneratedMessageV3.hasField(Descriptors.FieldDescriptor)

GeneratedMessageV3.hasOneof(Descriptors.OneofDescriptor)

GeneratedMessageV3.internalGetFieldAccessorTable()

GeneratedMessageV3.internalGetMapField(int)

com.google.protobuf.GeneratedMessageV3.internalGetMapFieldReflection(int)

GeneratedMessageV3.isInitialized()

GeneratedMessageV3.isStringEmpty(Object)

GeneratedMessageV3.makeExtensionsImmutable()

GeneratedMessageV3.mergeFromAndMakeImmutableInternal(CodedInputStream,ExtensionRegistryLite)

GeneratedMessageV3.mutableCopy(Internal.BooleanList)

GeneratedMessageV3.mutableCopy(Internal.DoubleList)

GeneratedMessageV3.mutableCopy(Internal.FloatList)

GeneratedMessageV3.mutableCopy(Internal.IntList)

GeneratedMessageV3.mutableCopy(Internal.LongList)

GeneratedMessageV3.newBooleanList()

GeneratedMessageV3.newBuilderForType(AbstractMessage.BuilderParent)

GeneratedMessageV3.newBuilderForType(GeneratedMessageV3.BuilderParent)

GeneratedMessageV3.newDoubleList()

GeneratedMessageV3.newFloatList()

GeneratedMessageV3.newInstance(GeneratedMessageV3.UnusedPrivateParameter)

GeneratedMessageV3.newIntList()

GeneratedMessageV3.newLongList()

GeneratedMessageV3.parseUnknownField(CodedInputStream,UnknownFieldSet.Builder,ExtensionRegistryLite,int)

GeneratedMessageV3.parseUnknownFieldProto3(CodedInputStream,UnknownFieldSet.Builder,ExtensionRegistryLite,int)

GeneratedMessageV3.writeReplace()

GeneratedMessageV3.writeString(CodedOutputStream,int,Object)

GeneratedMessageV3.writeStringNoTag(CodedOutputStream,Object)

GeneratedMessageV3.writeTo(CodedOutputStream)

Object.clone()

Object.finalize()

Object.getClass()

Object.notify()

Object.notifyAll()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Fields

END_AT_FIELD_NUMBER

public static final int END_AT_FIELD_NUMBER

Field Value
Type	Description
int

FROM_FIELD_NUMBER

public static final int FROM_FIELD_NUMBER

Field Value
Type	Description
int

LIMIT_FIELD_NUMBER

public static final int LIMIT_FIELD_NUMBER

Field Value
Type	Description
int

OFFSET_FIELD_NUMBER

public static final int OFFSET_FIELD_NUMBER

Field Value
Type	Description
int

ORDER_BY_FIELD_NUMBER

public static final int ORDER_BY_FIELD_NUMBER

Field Value
Type	Description
int

SELECT_FIELD_NUMBER

public static final int SELECT_FIELD_NUMBER

Field Value
Type	Description
int

START_AT_FIELD_NUMBER

public static final int START_AT_FIELD_NUMBER

Field Value
Type	Description
int

WHERE_FIELD_NUMBER

public static final int WHERE_FIELD_NUMBER

Field Value
Type	Description
int

Static Methods

getDefaultInstance()

public static StructuredQuery getDefaultInstance()

Returns
Type	Description
StructuredQuery

getDescriptor()

public static final Descriptors.Descriptor getDescriptor()

Returns
Type	Description
Descriptor

newBuilder()

public static StructuredQuery.Builder newBuilder()

Returns
Type	Description
StructuredQuery.Builder

newBuilder(StructuredQuery prototype)

public static StructuredQuery.Builder newBuilder(StructuredQuery prototype)

Parameter
Name	Description
prototype	StructuredQuery

Returns
Type	Description
StructuredQuery.Builder

parseDelimitedFrom(InputStream input)

public static StructuredQuery parseDelimitedFrom(InputStream input)

Parameter
Name	Description
input	InputStream

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
IOException

parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

public static StructuredQuery parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
input	InputStream
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
IOException

parseFrom(byte[] data)

public static StructuredQuery parseFrom(byte[] data)

Parameter
Name	Description
data	byte[]

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)

public static StructuredQuery parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
data	byte[]
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(ByteString data)

public static StructuredQuery parseFrom(ByteString data)

Parameter
Name	Description
data	ByteString

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)

public static StructuredQuery parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
data	ByteString
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(CodedInputStream input)

public static StructuredQuery parseFrom(CodedInputStream input)

Parameter
Name	Description
input	CodedInputStream

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
IOException

parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)

public static StructuredQuery parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
input	CodedInputStream
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
IOException

parseFrom(InputStream input)

public static StructuredQuery parseFrom(InputStream input)

Parameter
Name	Description
input	InputStream

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
IOException

parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

public static StructuredQuery parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
input	InputStream
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
IOException

parseFrom(ByteBuffer data)

public static StructuredQuery parseFrom(ByteBuffer data)

Parameter
Name	Description
data	ByteBuffer

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)

public static StructuredQuery parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
data	ByteBuffer
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
StructuredQuery

Exceptions
Type	Description
InvalidProtocolBufferException

parser()

public static Parser<StructuredQuery> parser()

Returns
Type	Description
Parser<StructuredQuery>

Methods

equals(Object obj)

public boolean equals(Object obj)

Parameter
Name	Description
obj	Object

Returns
Type	Description
boolean

Overrides

AbstractMessage.equals(Object other)

getDefaultInstanceForType()

public StructuredQuery getDefaultInstanceForType()

Returns
Type	Description
StructuredQuery

getEndAt()

public Cursor getEndAt()

A potential prefix of a position in the result set to end the query at.

This is similar to START_AT but with it controlling the end position rather than the start position.

Requires:

• The number of values cannot be greater than the number of fields specified in the ORDER BY clause.

.google.firestore.v1.Cursor end_at = 8;

Returns
Type	Description
Cursor	The endAt.

getEndAtOrBuilder()

public CursorOrBuilder getEndAtOrBuilder()

A potential prefix of a position in the result set to end the query at.

This is similar to START_AT but with it controlling the end position rather than the start position.

Requires:

• The number of values cannot be greater than the number of fields specified in the ORDER BY clause.

.google.firestore.v1.Cursor end_at = 8;

Returns
Type	Description
CursorOrBuilder

getFrom(int index)

public StructuredQuery.CollectionSelector getFrom(int index)

The collections to query.

repeated .google.firestore.v1.StructuredQuery.CollectionSelector from = 2;

Parameter
Name	Description
index	int

Returns
Type	Description
StructuredQuery.CollectionSelector

getFromCount()

public int getFromCount()

The collections to query.

repeated .google.firestore.v1.StructuredQuery.CollectionSelector from = 2;

Returns
Type	Description
int

getFromList()

public List<StructuredQuery.CollectionSelector> getFromList()

The collections to query.

repeated .google.firestore.v1.StructuredQuery.CollectionSelector from = 2;

Returns
Type	Description
List<CollectionSelector>

getFromOrBuilder(int index)

public StructuredQuery.CollectionSelectorOrBuilder getFromOrBuilder(int index)

The collections to query.

repeated .google.firestore.v1.StructuredQuery.CollectionSelector from = 2;

Parameter
Name	Description
index	int

Returns
Type	Description
StructuredQuery.CollectionSelectorOrBuilder

getFromOrBuilderList()

public List<? extends StructuredQuery.CollectionSelectorOrBuilder> getFromOrBuilderList()

The collections to query.

repeated .google.firestore.v1.StructuredQuery.CollectionSelector from = 2;

Returns
Type	Description
List<? extends com.google.firestore.v1.StructuredQuery.CollectionSelectorOrBuilder>

getLimit()

public Int32Value getLimit()

The maximum number of results to return.

Applies after all other constraints.

Requires:

• The value must be greater than or equal to zero if specified.

.google.protobuf.Int32Value limit = 5;

Returns
Type	Description
Int32Value	The limit.

getLimitOrBuilder()

public Int32ValueOrBuilder getLimitOrBuilder()

The maximum number of results to return.

Applies after all other constraints.

Requires:

• The value must be greater than or equal to zero if specified.

.google.protobuf.Int32Value limit = 5;

Returns
Type	Description
Int32ValueOrBuilder

getOffset()

public int getOffset()

The number of documents to skip before returning the first result.

This applies after the constraints specified by the WHERE, START AT, & END AT but before the LIMIT clause.

Requires:

• The value must be greater than or equal to zero if specified.

int32 offset = 6;

Returns
Type	Description
int	The offset.

getOrderBy(int index)

public StructuredQuery.Order getOrderBy(int index)

The order to apply to the query results.

Firestore allows callers to provide a full ordering, a partial ordering, or no ordering at all. In all cases, Firestore guarantees a stable ordering through the following rules:

• The order_by is required to reference all fields used with an inequality filter.
• All fields that are required to be in the order_by but are not already present are appended in lexicographical ordering of the field name.

• If an order on name is not specified, it is appended by default.

  Fields are appended with the same sort direction as the last order specified, or 'ASCENDING' if no order was specified. For example:

• ORDER BY a becomes ORDER BY a ASC, name ASC

• ORDER BY a DESC becomes ORDER BY a DESC, name DESC
• WHERE a > 1 becomes WHERE a > 1 ORDER BY a ASC, name ASC
• WHERE name > ... AND a > 1 becomes WHERE name > ... AND a > 1 ORDER BY a ASC, name ASC

repeated .google.firestore.v1.StructuredQuery.Order order_by = 4;

Parameter
Name	Description
index	int

Returns
Type	Description
StructuredQuery.Order

getOrderByCount()

public int getOrderByCount()

The order to apply to the query results.

Firestore allows callers to provide a full ordering, a partial ordering, or no ordering at all. In all cases, Firestore guarantees a stable ordering through the following rules:

• The order_by is required to reference all fields used with an inequality filter.
• All fields that are required to be in the order_by but are not already present are appended in lexicographical ordering of the field name.

• If an order on name is not specified, it is appended by default.

  Fields are appended with the same sort direction as the last order specified, or 'ASCENDING' if no order was specified. For example:

• ORDER BY a becomes ORDER BY a ASC, name ASC

• ORDER BY a DESC becomes ORDER BY a DESC, name DESC
• WHERE a > 1 becomes WHERE a > 1 ORDER BY a ASC, name ASC
• WHERE name > ... AND a > 1 becomes WHERE name > ... AND a > 1 ORDER BY a ASC, name ASC

repeated .google.firestore.v1.StructuredQuery.Order order_by = 4;

Returns
Type	Description
int

getOrderByList()

public List<StructuredQuery.Order> getOrderByList()

The order to apply to the query results.

Firestore allows callers to provide a full ordering, a partial ordering, or no ordering at all. In all cases, Firestore guarantees a stable ordering through the following rules:

• The order_by is required to reference all fields used with an inequality filter.
• All fields that are required to be in the order_by but are not already present are appended in lexicographical ordering of the field name.

• If an order on name is not specified, it is appended by default.

  Fields are appended with the same sort direction as the last order specified, or 'ASCENDING' if no order was specified. For example:

• ORDER BY a becomes ORDER BY a ASC, name ASC

• ORDER BY a DESC becomes ORDER BY a DESC, name DESC
• WHERE a > 1 becomes WHERE a > 1 ORDER BY a ASC, name ASC
• WHERE name > ... AND a > 1 becomes WHERE name > ... AND a > 1 ORDER BY a ASC, name ASC

repeated .google.firestore.v1.StructuredQuery.Order order_by = 4;

Returns
Type	Description
List<Order>

getOrderByOrBuilder(int index)

public StructuredQuery.OrderOrBuilder getOrderByOrBuilder(int index)

The order to apply to the query results.

Firestore allows callers to provide a full ordering, a partial ordering, or no ordering at all. In all cases, Firestore guarantees a stable ordering through the following rules:

• The order_by is required to reference all fields used with an inequality filter.
• All fields that are required to be in the order_by but are not already present are appended in lexicographical ordering of the field name.

• If an order on name is not specified, it is appended by default.

  Fields are appended with the same sort direction as the last order specified, or 'ASCENDING' if no order was specified. For example:

• ORDER BY a becomes ORDER BY a ASC, name ASC

• ORDER BY a DESC becomes ORDER BY a DESC, name DESC
• WHERE a > 1 becomes WHERE a > 1 ORDER BY a ASC, name ASC
• WHERE name > ... AND a > 1 becomes WHERE name > ... AND a > 1 ORDER BY a ASC, name ASC

repeated .google.firestore.v1.StructuredQuery.Order order_by = 4;

Parameter
Name	Description
index	int

Returns
Type	Description
StructuredQuery.OrderOrBuilder

getOrderByOrBuilderList()

public List<? extends StructuredQuery.OrderOrBuilder> getOrderByOrBuilderList()

The order to apply to the query results.

Firestore allows callers to provide a full ordering, a partial ordering, or no ordering at all. In all cases, Firestore guarantees a stable ordering through the following rules:

• The order_by is required to reference all fields used with an inequality filter.
• All fields that are required to be in the order_by but are not already present are appended in lexicographical ordering of the field name.

• If an order on name is not specified, it is appended by default.

  Fields are appended with the same sort direction as the last order specified, or 'ASCENDING' if no order was specified. For example:

• ORDER BY a becomes ORDER BY a ASC, name ASC

• ORDER BY a DESC becomes ORDER BY a DESC, name DESC
• WHERE a > 1 becomes WHERE a > 1 ORDER BY a ASC, name ASC
• WHERE name > ... AND a > 1 becomes WHERE name > ... AND a > 1 ORDER BY a ASC, name ASC

repeated .google.firestore.v1.StructuredQuery.Order order_by = 4;

Returns
Type	Description
List<? extends com.google.firestore.v1.StructuredQuery.OrderOrBuilder>

getParserForType()

public Parser<StructuredQuery> getParserForType()

Returns
Type	Description
Parser<StructuredQuery>

Overrides

GeneratedMessageV3.getParserForType()

getSelect()

public StructuredQuery.Projection getSelect()

Optional sub-set of the fields to return.

This acts as a DocumentMask over the documents returned from a query. When not set, assumes that the caller wants all fields returned.

.google.firestore.v1.StructuredQuery.Projection select = 1;

Returns
Type	Description
StructuredQuery.Projection	The select.

getSelectOrBuilder()

public StructuredQuery.ProjectionOrBuilder getSelectOrBuilder()

Optional sub-set of the fields to return.

This acts as a DocumentMask over the documents returned from a query. When not set, assumes that the caller wants all fields returned.

.google.firestore.v1.StructuredQuery.Projection select = 1;

Returns
Type	Description
StructuredQuery.ProjectionOrBuilder

getSerializedSize()

public int getSerializedSize()

Returns
Type	Description
int

Overrides

GeneratedMessageV3.getSerializedSize()

getStartAt()

public Cursor getStartAt()

A potential prefix of a position in the result set to start the query at.

The ordering of the result set is based on the ORDER BY clause of the original query.

` SELECT * FROM k WHERE a = 1 AND b > 2 ORDER BY b ASC, name ASC;

This query's results are ordered by (b ASC, name ASC).

Cursors can reference either the full ordering or a prefix of the location, though it cannot reference more fields than what are in the provided ORDER BY.

Continuing off the example above, attaching the following start cursors will have varying impact:

START BEFORE (2, /k/123): start the query right before a = 1 AND b > 2 AND name > /k/123.

START AFTER (10): start the query right after a = 1 AND b > 10.

Unlike OFFSET which requires scanning over the first N results to skip, a start cursor allows the query to begin at a logical position. This position is not required to match an actual result, it will scan forward from this position to find the next document.

Requires:

The number of values cannot be greater than the number of fields specified in the

ORDER BY` clause.

.google.firestore.v1.Cursor start_at = 7;

Returns
Type	Description
Cursor	The startAt.

getStartAtOrBuilder()

public CursorOrBuilder getStartAtOrBuilder()

A potential prefix of a position in the result set to start the query at.

The ordering of the result set is based on the ORDER BY clause of the original query.

` SELECT * FROM k WHERE a = 1 AND b > 2 ORDER BY b ASC, name ASC;

This query's results are ordered by (b ASC, name ASC).

Cursors can reference either the full ordering or a prefix of the location, though it cannot reference more fields than what are in the provided ORDER BY.

Continuing off the example above, attaching the following start cursors will have varying impact:

START BEFORE (2, /k/123): start the query right before a = 1 AND b > 2 AND name > /k/123.

START AFTER (10): start the query right after a = 1 AND b > 10.

Unlike OFFSET which requires scanning over the first N results to skip, a start cursor allows the query to begin at a logical position. This position is not required to match an actual result, it will scan forward from this position to find the next document.

Requires:

The number of values cannot be greater than the number of fields specified in the

ORDER BY` clause.

.google.firestore.v1.Cursor start_at = 7;

Returns
Type	Description
CursorOrBuilder

getWhere()

public StructuredQuery.Filter getWhere()

The filter to apply.

.google.firestore.v1.StructuredQuery.Filter where = 3;

Returns
Type	Description
StructuredQuery.Filter	The where.

getWhereOrBuilder()

public StructuredQuery.FilterOrBuilder getWhereOrBuilder()

The filter to apply.

.google.firestore.v1.StructuredQuery.Filter where = 3;

Returns
Type	Description
StructuredQuery.FilterOrBuilder

hasEndAt()

public boolean hasEndAt()

A potential prefix of a position in the result set to end the query at.

This is similar to START_AT but with it controlling the end position rather than the start position.

Requires:

• The number of values cannot be greater than the number of fields specified in the ORDER BY clause.

.google.firestore.v1.Cursor end_at = 8;

Returns
Type	Description
boolean	Whether the endAt field is set.

hasLimit()

public boolean hasLimit()

The maximum number of results to return.

Applies after all other constraints.

Requires:

• The value must be greater than or equal to zero if specified.

.google.protobuf.Int32Value limit = 5;

Returns
Type	Description
boolean	Whether the limit field is set.

hasSelect()

public boolean hasSelect()

Optional sub-set of the fields to return.

This acts as a DocumentMask over the documents returned from a query. When not set, assumes that the caller wants all fields returned.

.google.firestore.v1.StructuredQuery.Projection select = 1;

Returns
Type	Description
boolean	Whether the select field is set.

hasStartAt()

public boolean hasStartAt()

A potential prefix of a position in the result set to start the query at.

The ordering of the result set is based on the ORDER BY clause of the original query.

` SELECT * FROM k WHERE a = 1 AND b > 2 ORDER BY b ASC, name ASC;

This query's results are ordered by (b ASC, name ASC).

Cursors can reference either the full ordering or a prefix of the location, though it cannot reference more fields than what are in the provided ORDER BY.

Continuing off the example above, attaching the following start cursors will have varying impact:

START BEFORE (2, /k/123): start the query right before a = 1 AND b > 2 AND name > /k/123.

START AFTER (10): start the query right after a = 1 AND b > 10.

Unlike OFFSET which requires scanning over the first N results to skip, a start cursor allows the query to begin at a logical position. This position is not required to match an actual result, it will scan forward from this position to find the next document.

Requires:

The number of values cannot be greater than the number of fields specified in the

ORDER BY` clause.

.google.firestore.v1.Cursor start_at = 7;

Returns
Type	Description
boolean	Whether the startAt field is set.

hasWhere()

public boolean hasWhere()

The filter to apply.

.google.firestore.v1.StructuredQuery.Filter where = 3;

Returns
Type	Description
boolean	Whether the where field is set.

hashCode()

public int hashCode()

Returns
Type	Description
int

Overrides

AbstractMessage.hashCode()

internalGetFieldAccessorTable()

protected GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()

Returns
Type	Description
FieldAccessorTable

Overrides

GeneratedMessageV3.internalGetFieldAccessorTable()

isInitialized()

public final boolean isInitialized()

Returns
Type	Description
boolean

Overrides

GeneratedMessageV3.isInitialized()

newBuilderForType()

public StructuredQuery.Builder newBuilderForType()

Returns
Type	Description
StructuredQuery.Builder

newBuilderForType(GeneratedMessageV3.BuilderParent parent)

protected StructuredQuery.Builder newBuilderForType(GeneratedMessageV3.BuilderParent parent)

Parameter
Name	Description
parent	BuilderParent

Returns
Type	Description
StructuredQuery.Builder

Overrides

GeneratedMessageV3.newBuilderForType(GeneratedMessageV3.BuilderParent parent)

newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)

protected Object newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)

Parameter
Name	Description
unused	UnusedPrivateParameter

Returns
Type	Description
Object

Overrides

GeneratedMessageV3.newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)

toBuilder()

public StructuredQuery.Builder toBuilder()

Returns
Type	Description
StructuredQuery.Builder

writeTo(CodedOutputStream output)

public void writeTo(CodedOutputStream output)

Parameter
Name	Description
output	CodedOutputStream

Overrides

GeneratedMessageV3.writeTo(CodedOutputStream output)

Exceptions
Type	Description
IOException