public interface PartialResultSetOrBuilder extends MessageOrBuilder
Implements
MessageOrBuilderMethods
getChunkedValue()
public abstract boolean getChunkedValue()
If true, then the final value in values is chunked, and must
be combined with more values from subsequent PartialResultSet
s
to obtain a complete field value.
bool chunked_value = 3;
Returns | |
---|---|
Type | Description |
boolean |
The chunkedValue. |
getMetadata()
public abstract ResultSetMetadata getMetadata()
Metadata about the result set, such as row type information. Only present in the first response.
.google.spanner.v1.ResultSetMetadata metadata = 1;
Returns | |
---|---|
Type | Description |
ResultSetMetadata |
The metadata. |
getMetadataOrBuilder()
public abstract ResultSetMetadataOrBuilder getMetadataOrBuilder()
Metadata about the result set, such as row type information. Only present in the first response.
.google.spanner.v1.ResultSetMetadata metadata = 1;
Returns | |
---|---|
Type | Description |
ResultSetMetadataOrBuilder |
getPrecommitToken()
public abstract MultiplexedSessionPrecommitToken getPrecommitToken()
Optional. A precommit token will be included if the read-write transaction is on a multiplexed session. The precommit token with the highest sequence number from this transaction attempt should be passed to the Commit request for this transaction. This feature is not yet supported and will result in an UNIMPLEMENTED error.
.google.spanner.v1.MultiplexedSessionPrecommitToken precommit_token = 8 [(.google.api.field_behavior) = OPTIONAL];
Returns | |
---|---|
Type | Description |
MultiplexedSessionPrecommitToken |
The precommitToken. |
getPrecommitTokenOrBuilder()
public abstract MultiplexedSessionPrecommitTokenOrBuilder getPrecommitTokenOrBuilder()
Optional. A precommit token will be included if the read-write transaction is on a multiplexed session. The precommit token with the highest sequence number from this transaction attempt should be passed to the Commit request for this transaction. This feature is not yet supported and will result in an UNIMPLEMENTED error.
.google.spanner.v1.MultiplexedSessionPrecommitToken precommit_token = 8 [(.google.api.field_behavior) = OPTIONAL];
Returns | |
---|---|
Type | Description |
MultiplexedSessionPrecommitTokenOrBuilder |
getResumeToken()
public abstract ByteString getResumeToken()
Streaming calls might be interrupted for a variety of reasons, such
as TCP connection loss. If this occurs, the stream of results can
be resumed by re-sending the original request and including
resume_token
. Note that executing any other transaction in the
same session invalidates the token.
bytes resume_token = 4;
Returns | |
---|---|
Type | Description |
ByteString |
The resumeToken. |
getStats()
public abstract ResultSetStats getStats()
Query plan and execution statistics for the statement that produced this streaming result set. These can be requested by setting ExecuteSqlRequest.query_mode and are sent only once with the last response in the stream. This field will also be present in the last response for DML statements.
.google.spanner.v1.ResultSetStats stats = 5;
Returns | |
---|---|
Type | Description |
ResultSetStats |
The stats. |
getStatsOrBuilder()
public abstract ResultSetStatsOrBuilder getStatsOrBuilder()
Query plan and execution statistics for the statement that produced this streaming result set. These can be requested by setting ExecuteSqlRequest.query_mode and are sent only once with the last response in the stream. This field will also be present in the last response for DML statements.
.google.spanner.v1.ResultSetStats stats = 5;
Returns | |
---|---|
Type | Description |
ResultSetStatsOrBuilder |
getValues(int index)
public abstract Value getValues(int index)
A streamed result set consists of a stream of values, which might
be split into many PartialResultSet
messages to accommodate
large rows and/or large values. Every N complete values defines a
row, where N is equal to the number of entries in
metadata.row_type.fields.
Most values are encoded based on type as described here.
It is possible that the last value in values is "chunked",
meaning that the rest of the value is sent in subsequent
PartialResultSet
(s). This is denoted by the chunked_value
field. Two or more chunked values can be merged to form a
complete value as follows:
bool/number/null
: cannot be chunkedstring
: concatenate the stringslist
: concatenate the lists. If the last element in a list is astring
,list
, orobject
, merge it with the first element in the next list by applying these rules recursively.object
: concatenate the (field name, field value) pairs. If a field name is duplicated, then apply these rules recursively to merge the field values.Some examples of merging:
Strings are concatenated.
"foo", "bar" => "foobar"
Lists of non-strings are concatenated.
[2, 3], [4] => [2, 3, 4]
Lists are concatenated, but the last and first elements are merged
because they are strings.
["a", "b"], ["c", "d"] => ["a", "bc", "d"]
Lists are concatenated, but the last and first elements are merged
because they are lists. Recursively, the last and first elements
of the inner lists are merged because they are strings.
["a", ["b", "c"]], [["d"], "e"] => ["a", ["b", "cd"], "e"]
Non-overlapping object fields are combined.
{"a": "1"}, {"b": "2"} => {"a": "1", "b": 2"}
Overlapping object fields are merged.
{"a": "1"}, {"a": "2"} => {"a": "12"}
Examples of merging objects containing lists of strings.
{"a": ["1"]}, {"a": ["2"]} => {"a": ["12"]}
For a more complete example, suppose a streaming SQL query is yielding a result set whose rows contain a single string field. The following
PartialResultSet
s might be yielded:{ "metadata": { ... } "values": ["Hello", "W"] "chunked_value": true "resume_token": "Af65..." } { "values": ["orl"] "chunked_value": true "resume_token": "Bqp2..." } { "values": ["d"] "resume_token": "Zx1B..." }
This sequence of
PartialResultSet
s encodes two rows, one containing the field value"Hello"
, and a second containing the field value"World" = "W" + "orl" + "d"
.
repeated .google.protobuf.Value values = 2;
Parameter | |
---|---|
Name | Description |
index |
int |
Returns | |
---|---|
Type | Description |
Value |
getValuesCount()
public abstract int getValuesCount()
A streamed result set consists of a stream of values, which might
be split into many PartialResultSet
messages to accommodate
large rows and/or large values. Every N complete values defines a
row, where N is equal to the number of entries in
metadata.row_type.fields.
Most values are encoded based on type as described here.
It is possible that the last value in values is "chunked",
meaning that the rest of the value is sent in subsequent
PartialResultSet
(s). This is denoted by the chunked_value
field. Two or more chunked values can be merged to form a
complete value as follows:
bool/number/null
: cannot be chunkedstring
: concatenate the stringslist
: concatenate the lists. If the last element in a list is astring
,list
, orobject
, merge it with the first element in the next list by applying these rules recursively.object
: concatenate the (field name, field value) pairs. If a field name is duplicated, then apply these rules recursively to merge the field values.Some examples of merging:
Strings are concatenated.
"foo", "bar" => "foobar"
Lists of non-strings are concatenated.
[2, 3], [4] => [2, 3, 4]
Lists are concatenated, but the last and first elements are merged
because they are strings.
["a", "b"], ["c", "d"] => ["a", "bc", "d"]
Lists are concatenated, but the last and first elements are merged
because they are lists. Recursively, the last and first elements
of the inner lists are merged because they are strings.
["a", ["b", "c"]], [["d"], "e"] => ["a", ["b", "cd"], "e"]
Non-overlapping object fields are combined.
{"a": "1"}, {"b": "2"} => {"a": "1", "b": 2"}
Overlapping object fields are merged.
{"a": "1"}, {"a": "2"} => {"a": "12"}
Examples of merging objects containing lists of strings.
{"a": ["1"]}, {"a": ["2"]} => {"a": ["12"]}
For a more complete example, suppose a streaming SQL query is yielding a result set whose rows contain a single string field. The following
PartialResultSet
s might be yielded:{ "metadata": { ... } "values": ["Hello", "W"] "chunked_value": true "resume_token": "Af65..." } { "values": ["orl"] "chunked_value": true "resume_token": "Bqp2..." } { "values": ["d"] "resume_token": "Zx1B..." }
This sequence of
PartialResultSet
s encodes two rows, one containing the field value"Hello"
, and a second containing the field value"World" = "W" + "orl" + "d"
.
repeated .google.protobuf.Value values = 2;
Returns | |
---|---|
Type | Description |
int |
getValuesList()
public abstract List<Value> getValuesList()
A streamed result set consists of a stream of values, which might
be split into many PartialResultSet
messages to accommodate
large rows and/or large values. Every N complete values defines a
row, where N is equal to the number of entries in
metadata.row_type.fields.
Most values are encoded based on type as described here.
It is possible that the last value in values is "chunked",
meaning that the rest of the value is sent in subsequent
PartialResultSet
(s). This is denoted by the chunked_value
field. Two or more chunked values can be merged to form a
complete value as follows:
bool/number/null
: cannot be chunkedstring
: concatenate the stringslist
: concatenate the lists. If the last element in a list is astring
,list
, orobject
, merge it with the first element in the next list by applying these rules recursively.object
: concatenate the (field name, field value) pairs. If a field name is duplicated, then apply these rules recursively to merge the field values.Some examples of merging:
Strings are concatenated.
"foo", "bar" => "foobar"
Lists of non-strings are concatenated.
[2, 3], [4] => [2, 3, 4]
Lists are concatenated, but the last and first elements are merged
because they are strings.
["a"