com.metamatrix.query.processor.xml
Class BlockInstruction
java.lang.Object
com.metamatrix.query.processor.xml.ProcessorInstruction
com.metamatrix.query.processor.xml.BlockInstruction
- All Implemented Interfaces:
- Describable
public class BlockInstruction
- extends ProcessorInstruction
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 |
BlockInstruction(java.lang.String resultSetName)
Constructor for MoveCursorInstruction. |
Method Summary |
java.util.Map |
getDescriptionProperties()
Get a description as a set of properties of primitive types such
as String, Integer, etc. |
com.metamatrix.query.processor.xml.XMLContext |
process(XMLProcessorEnvironment env,
com.metamatrix.query.processor.xml.XMLContext context)
Allow this ProcessorInstruction 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.) |
java.lang.String |
toString()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
BlockInstruction
public BlockInstruction(java.lang.String resultSetName)
- Constructor for MoveCursorInstruction.
process
public com.metamatrix.query.processor.xml.XMLContext process(XMLProcessorEnvironment env,
com.metamatrix.query.processor.xml.XMLContext context)
throws BlockedException,
MetaMatrixComponentException,
MetaMatrixProcessingException
- Description copied from class:
ProcessorInstruction
- Allow this ProcessorInstruction 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.)
- Specified by:
process
in class ProcessorInstruction
- Parameters:
env
- instance of ProcessorEnvironment which is being used for the processing
of the XML document model query
- Throws:
MetaMatrixProcessingException
- if row limit is reached and exception should
be thrown
BlockedException
- if data is not available now but may be at a later time
MetaMatrixComponentException
- for non-business exception- See Also:
ProcessorInstruction#process(ProcessorEnvironment)
toString
public java.lang.String toString()
- Overrides:
toString
in class java.lang.Object
getDescriptionProperties
public java.util.Map getDescriptionProperties()
- Description copied from interface:
Describable
- Get a description as a set of properties of primitive types such
as String, Integer, etc.
- Specified by:
getDescriptionProperties
in interface Describable
- Overrides:
getDescriptionProperties
in class ProcessorInstruction
- Returns:
- Map of properties
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