com.twitter.collection.RecordSchema
Record
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package RecordSchema
Returns the current value assigned to field in this record.
Returns the current value assigned to field in this record. If there is no value currently
assigned (either explicitly by a previous update, or by the field's declared default), this
will throw an IllegalStateException, indicating the field was never initialized.
Note that Scala provides two syntactic equivalents for invoking this method:
record.apply(field) record(field)
the field to access in this record
the value associated with field.
Create a copy of this record with value assigned to field.
Create a copy of this record with value assigned to field. field will be locked in the
copy iff it was present and locked in the original record. If field was not present in the
original then the following are equivalent:
record.copy(field, value) record.copy().update(field, value)
the field to assign in the copy
the value to assign to field in the copy
a copy of this record
Create a copy of this record.
Create a copy of this record. Fields are locked in the copy iff they were locked in the original record.
a copy of this record
Locks the current value for a given field in this record, preventing further updates.
Locks the current value for a given field in this record, preventing further updates. If
there is no value currently assigned (either explicitly by a previous update, or by the
field's declared default), this will throw an IllegalStateException, indicating the field
was never initialized.
the field to lock in this record
this record
Assigns (or reassigns) a value to a field in this record.
Assigns (or reassigns) a value to a field in this record. If this field was previously
locked, this will throw an IllegalStateException to indicate failure.
Note that Scala provides two syntactic equivalents for invoking this method:
record.update(field, value) record(field) = value
the field to assign in this record
the value to assign to field in this record
this record
Assigns (or reassigns) a value to a field in this record, and locks it to prevent further
updates.
Assigns (or reassigns) a value to a field in this record, and locks it to prevent further
updates. This method is provided for convenience only; the following are equivalent:
record.updateAndLock(field, value) record.update(field, value).lock(field)
the field to assign and lock in this record
the value to assign to field in this record
this record
Record is an instance of a RecordSchema declaration. Records are mutable; the
updatemethod assigns or reassigns a value to a given field. If the user requires that a field's assigned value is never reassigned later, the user canlockthat field.Note that this implementation is not synchronized. If multiple threads access a record concurrently, and at least one of the threads modifies the record, it must be synchronized externally.