com.metamatrix.query.processor.proc
Class ErrorInstruction

java.lang.Object
  com.metamatrix.query.processor.program.ProgramInstruction
      com.metamatrix.query.processor.proc.AbstractAssignmentInstruction
          com.metamatrix.query.processor.proc.ErrorInstruction

All Implemented Interfaces:

Describable, java.lang.Cloneable

public class ErrorInstruction
extends AbstractAssignmentInstruction

This instruction updates the current variable context with the Variable defined using the declare statement that is used in constructing this instruction.

Field Summary

static java.lang.String

ERROR_PREFIX

Fields inherited from interface com.metamatrix.query.processor.Describable

PROP_BINDINGS, PROP_CHILDREN, PROP_CONDITIONS, PROP_CRITERIA, PROP_DATA_COL, PROP_DEFAULT, PROP_DEFAULT_PROGRAM, PROP_ELSE, PROP_ENCODING, PROP_EXECUTION_PLAN, PROP_EXPRESSION, PROP_FORMATTED, PROP_GROUP, PROP_GROUP_COLS, PROP_IN_MEMORY, PROP_INTO_GROUP, PROP_IS_STAGING, PROP_JOIN_CRITERIA, PROP_JOIN_STRATEGY, PROP_JOIN_TYPE, PROP_MESSAGE, PROP_MODEL_NAME, PROP_NAMESPACE, PROP_NAMESPACE_DECL, PROP_NODE_COST_ESTIMATES, PROP_NODE_STATS_LIST, PROP_NODE_STATS_PROPS, PROP_OPTIONAL, PROP_OUTPUT_COLS, PROP_PROGRAM, PROP_PROGRAMS, PROP_RECURSE_DIR, PROP_REMOVE_DUPS, PROP_RESULT_SET, PROP_ROW_LIMIT, PROP_ROW_OFFSET, PROP_SELECT_COLS, PROP_SORT_COLS, PROP_SQL, PROP_TAG, PROP_THEN, PROP_TYPE, PROP_VARIABLE

Constructor Summary

ErrorInstruction()
Constructor for DeclareInstruction.

Method Summary

java.lang.Object	clone() Override Object.clone() to make the method public.
protected void	getDescriptionProperties(java.util.Map props)
protected void	processValue(java.lang.Object value, VariableContext varContext)
java.lang.String	toString()

Methods inherited from class com.metamatrix.query.processor.proc.AbstractAssignmentInstruction

cloneState, getChildPlans, getDescriptionProperties, getExpression, getProcessorPlan, getProcessPlan, getVariable, process, setExpression, setProcessPlan, setVariable

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ERROR_PREFIX

public static final java.lang.String ERROR_PREFIX

See Also:

Constant Field Values

Constructor Detail

ErrorInstruction

public ErrorInstruction()

Constructor for DeclareInstruction.

Method Detail

clone

public java.lang.Object clone()

Description copied from class: ProgramInstruction

Override Object.clone() to make the method public. This method simply calls super.clone(), deferring to the default shallow cloning. Some ProcessorInstruction subclasses may need to override with custom safe or deep cloning.

Overrides:

clone in class ProgramInstruction

Returns:

shallow clone

See Also:

ProgramInstruction.clone()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getDescriptionProperties

protected void getDescriptionProperties(java.util.Map props)

Specified by:

getDescriptionProperties in class AbstractAssignmentInstruction

processValue

protected void processValue(java.lang.Object value,
                            VariableContext varContext)
                     throws MetaMatrixComponentException,
                            MetaMatrixProcessingException

Specified by:

processValue in class AbstractAssignmentInstruction

Throws:

MetaMatrixComponentException

MetaMatrixProcessingException

See Also:

com.metamatrix.query.processor.proc.AbstractAssignmentInstruction#processValue(java.lang.Object)