Package org.apache.calcite.adapter.os

package org.apache.calcite.adapter.os

The OS adapter contains various table functions that let you query data sources in your operating system and environment.

Class	Description
CpuInfoTableFunction	Table function that executes the OS "cpu_info".
CpuTimeTableFunction	Table function that executes the OS "cpu_info".
DuTableFunction	Table function that executes the OS "du" ("disk usage") command to compute file sizes.
FilesTableFunction	Table function that executes the OS "find" command to find files under a particular path.
GitCommitsTableFunction	Table function that executes the OS "git log" command to discover git commits.
InterfaceAddressesTableFunction	Table function that executes the OS "interface_addresses".
InterfaceDetailsTableFunction	Table function that executes the OS "interface_details".
JavaInfoTableFunction	Table function that executes the OS "java_info".
JpsTableFunction	Table function that executes the OS "jps" ("Java Virtual Machine Process Status Tool") command to list all java processes of a user.
MemoryInfoTableFunction	Table function that executes the OS "memory_info".
MountsTableFunction	Table function that executes the OS "mounts".
OsQuery	Enumerator that reads from OS's System.
OsQueryType	Get system enumeration information.
OsVersionTableFunction	Table function that executes the OS "os_version".
Processes	Utilities regarding operating system processes.
PsTableFunction	Table function that executes the OS "ps" command to list processes.
SqlShell	Command that executes its arguments as a SQL query against Calcite's OS adapter.
StdinTableFunction	Table function that reads stdin and returns one row per line.
SystemInfoTableFunction	Table function that executes the OS "system_info".
VmstatTableFunction	Table function that executes the OS "vmstat" command to share memory statistics.