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Version: Java (Groovy)

constituentChangesPermitted

The constituentChangesPermitted method returns a boolean value indicating whether changes to the constituents of a partitioned table are permitted. This is completely unrelated to whether the constituents themselves are refreshing, or whether the underlying partitioned table is refreshing.

note

The underlying partitioned table must be refreshing if it contains any refreshing constituents.

Partitioned tables that specify constituentChangesPermitted() == false must be guaranteed never to change their constituents. Formally, it is expected that table() will never report additions, removals, or shifts, and that any modifications reported will not change values in the "constituent" column (that is, table().getColumnSource(constituentColumnName())).

Syntax​

constituentChangesPermitted()

Parameters​

This function does not take any parameters.

Returns​

A boolean value indicating whether changes to the constituents of a partitioned table are permitted.

Examples​

source = newTable(
    stringCol("X", "A", "B", "A", "C", "B", "A", "B", "B", "C"),
    stringCol("Y", "M", "N", "O", "N", "P", "M", "O", "P", "M"),
    intCol("Number", 55, 76, 20, 130, 230, 50, 73, 137, 214),
)

partitionedTable = source.partitionBy("X")

println partitionedTable.constituentChangesPermitted()

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