Uses of Class
com.metamatrix.query.processor.program.ProgramEnvironment

Packages that use ProgramEnvironment

com.metamatrix.query.processor.proc
com.metamatrix.query.processor.program

Uses of ProgramEnvironment in com.metamatrix.query.processor.proc

Subclasses of ProgramEnvironment in com.metamatrix.query.processor.proc

class

ProcedureEnvironment This class defines the environment that procedure language programs run in and what ProgramInstructions can access during execution.

Methods in com.metamatrix.query.processor.proc with parameters of type ProgramEnvironment

void	WhileInstruction.process(ProgramEnvironment env)
void	LoopInstruction.process(ProgramEnvironment env)
void	IfInstruction.process(ProgramEnvironment env) This instruction will evaluate it's criteria, if it evaluates to true, it will push the corresponding sub Program on to the top of the program stack, and break from the loop.
void	ExecSqlInstruction.process(ProgramEnvironment env) Processing this instruction executes the ProcessorPlan for the command on the CommandStatement of the update procedure language.
void	ExecDynamicSqlInstruction.process(ProgramEnvironment env) Processing this instruction executes the ProcessorPlan for the command on the CommandStatement of the update procedure language.
void	CreateCursorResultSetInstruction.process(ProgramEnvironment env) If the result set named rsName does not exist yet in the ProcessorEnvironment, then this instruction will define that result set.
void	ContinueInstruction.process(ProgramEnvironment env)
void	BreakInstruction.process(ProgramEnvironment env)
void	AbstractAssignmentInstruction.process(ProgramEnvironment env) Updates the current variable context with a value for the Variable defined using a DeclareInstruction, the variable value is obtained by either processing a expression or a command(stored as a processplan).

Uses of ProgramEnvironment in com.metamatrix.query.processor.program

Methods in com.metamatrix.query.processor.program with parameters of type ProgramEnvironment

abstract void

ProgramInstruction.process(ProgramEnvironment env) Allow this instruction to do whatever processing it needs, and to in turn manipulate the running program, (via the ProcessorEnvironment getProgramStack method.) A typical instruction should simply increment the program counter of the current program, but specialized instructions may add sub programs to the stack or not increment the counter (so that they are executed again.)