org.cloudgraph.hbase.filter

Interface PredicateFilterAssembler

All Superinterfaces:

Assembler, HBaseFilterAssembler

All Known Implementing Classes:

ColumnPredicateFilterAssembler, MultiColumnPredicateFilterAssembler, PredicateColumnFilterAssembler, PredicateRowFilterAssembler

public interface PredicateFilterAssembler
extends HBaseFilterAssembler

Assembles an HBase predicate filter hierarchy based on one or more query predicates.

HBase filters may be collected into lists using FilterList each with a MUST_PASS_ALL or MUST_PASS_ONE (logical) operator. Lists may then be assembled into hierarchies used to represent complex expression trees filtering either rows or columns in HBase.

Since:

0.5

Author:

Scott Cinnamond

Method Summary

Modifier and Type	Method and Description
void	assemble(org.plasma.query.model.Where where, org.plasma.sdo.PlasmaType contextType) Assembles a predicate filter list or hierarchy based on one or more given query predicates.

Methods inherited from interface org.cloudgraph.hbase.filter.HBaseFilterAssembler

getFilter

Methods inherited from interface org.cloudgraph.common.Assembler

clear

Method Detail

assemble

void assemble(org.plasma.query.model.Where where,
              org.plasma.sdo.PlasmaType contextType)

Assembles a predicate filter list or hierarchy based on one or more given query predicates.

Parameters:

where - the where clause

contextType - the context type which may be the root type or another type linked by one or more relations to the root