Package org.apache.cayenne.exp

Examples of org.apache.cayenne.exp.ExpressionException

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    public Iterator<CayenneMapEntry> resolvePathComponents(Expression pathExp) throws ExpressionException {

        // resolve DB_PATH if we can
        if (pathExp.getType() == Expression.DB_PATH) {
            if (getDbEntity() == null) {
                throw new ExpressionException("Can't resolve DB_PATH '"
                        + pathExp
                        + "', DbEntity is not set.");
            }

            return getDbEntity().resolvePathComponents(pathExp);
        }

        if (pathExp.getType() == Expression.OBJ_PATH) {
            return new PathIterator((String) pathExp.getOperand(0));
        }

        throw new ExpressionException("Invalid expression type: '"
                + pathExp.expName()
                + "',  OBJ_PATH is expected.");
    }
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        }
        else if (object instanceof Number) {
            return new BigDecimal(((Number) object).doubleValue());
        }

        throw new ExpressionException("Can't convert to BigDecimal: " + object);
    }
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            // see if this is an attribute
            Attribute attr = currentEnt.getAttribute(pathComp);
            if (attr != null) {
                // do a sanity check...
                if (toks.hasMoreTokens())
                    throw new ExpressionException(
                            "Attribute must be the last component of the path: '" +
                                    pathComp +
                                    "'.",
                            path,
                            null);

                return attr;
            }

            Relationship rel = currentEnt.getRelationship(pathComp);
            if (rel != null) {
                currentEnt = rel.getTargetEntity();
                return rel;
            }

            // build error message
            StringBuffer buf = new StringBuffer();
            buf
                    .append("Can't resolve path component: [")
                    .append(currentEnt.getName())
                    .append('.')
                    .append(pathComp)
                    .append("].");
            throw new ExpressionException(buf.toString(), path, null);
        }
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        // in the grammar... do it here...

        // disallow non-aggregated condition parents...
        if (!(n instanceof AggregateConditionNode)) {
            String label = (n instanceof SimpleNode) ? ((SimpleNode)n).expName() : String.valueOf(n);
            throw new ExpressionException(expName() + ": invalid parent - " + label);
        }

        super.jjtSetParent(n);
    }
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        if (!(n instanceof AggregateConditionNode)) {
            String label =
                (n instanceof SimpleNode)
                    ? ((SimpleNode) n).expName()
                    : String.valueOf(n);
            throw new ExpressionException(expName() + ": invalid parent - " + label);
        }

        super.jjtSetParent(n);
    }
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        if (!(n instanceof ConditionNode) && !(n instanceof AggregateConditionNode)) {
            String label =
                (n instanceof SimpleNode)
                    ? ((SimpleNode) n).expName()
                    : String.valueOf(n);
            throw new ExpressionException(expName() + ": invalid child - " + label);
        }

        super.jjtAddChild(n, i);
    }
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                    newChildren[j++] = c;
                }
            }

            if (j != newSize) {
                throw new ExpressionException("Assertion error: " + j + " != " + newSize);
            }

            this.children = newChildren;
        }
    }
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        try {
            return evaluateNode(o);
        }
        catch (Throwable th) {
            String string = this.toString();
            throw new ExpressionException(
                    "Error evaluating expression '" + string + "'",
                    string,
                    Util.unwindException(th));
        }
    }
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        setValue(value);
    }

    @Override
    protected Object evaluateNode(Object o) throws Exception {
        throw new ExpressionException(
            "Uninitialized parameter: " + value + ", call 'expWithParameters' first.");
    }
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    }

    @Override
    public void setValue(Object value) {
        if (value == null) {
            throw new ExpressionException("Null Parameter value");
        }

        String name = value.toString().trim();
        if (name.length() == 0) {
            throw new ExpressionException("Empty Parameter value");
        }

        super.setValue(new ExpressionParameter(name));
    }
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Related Classes of org.apache.cayenne.exp.ExpressionException

  • org.apache.cayenne.access.trans.QualifierTranslator
  • org.apache.cayenne.exp.parser.AggregateConditionNode
  • org.apache.cayenne.exp.parser.ASTNamedParameter
  • org.apache.cayenne.exp.parser.ASTObjPath
  • org.apache.cayenne.exp.parser.ConditionNode
  • org.apache.cayenne.exp.parser.IgnoreCaseNode
  • org.apache.cayenne.exp.parser.SimpleNode
  • org.apache.cayenne.map.DbEntity
  • org.apache.cayenne.map.Entity$PathIterator
  • org.apache.cayenne.map.ObjEntity
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