Examples of com.mysema.query.sql.ColumnMetadata

com.mysema.query.sql.ColumnMetadata
Provides metadata like the column name, JDBC type and constraints


public class ColumnMetadataTest {


    @Test
    public void DefaultColumn() {
        ColumnMetadata column = ColumnMetadata.named("Person");
        assertEquals("Person", column.getName());
        assertFalse(column.hasJdbcType());
        assertFalse(column.hasSize());
        assertTrue(column.isNullable());
    }

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        assertTrue(column.isNullable());
    }


    @Test
    public void FullyConfigured() {
        ColumnMetadata column = ColumnMetadata.named("Person").withSize(10)
                .notNull().ofType(Types.BIGINT);
        assertEquals("Person", column.getName());
        assertTrue(column.hasJdbcType());
        assertEquals(Types.BIGINT, column.getJdbcType());
        assertTrue(column.hasSize());
        assertEquals(10, column.getSize());
        assertFalse(column.isNullable());
    }

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        assertFalse(column.isNullable());
    }


    @Test
    public void ExtractFromRelationalPath() {
        ColumnMetadata column = ColumnMetadata.getColumnMetadata(QEmployee.employee.id);
        assertEquals("ID", column.getName());
    }

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        assertEquals("ID", column.getName());
    }


    @Test
    public void FallBackToDefaultWhenMissing() {
        ColumnMetadata column = ColumnMetadata.getColumnMetadata(QEmployee.employee.salary);
        assertEquals("SALARY", column.getName());
    }

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        if (columnComparator != null) {
            Collections.sort(properties, columnComparator);
        }
        for (Property property : properties) {
            String name = property.getEscapedName();
            ColumnMetadata metadata = (ColumnMetadata) property.getData().get("COLUMN");
            StringBuilder columnMeta = new StringBuilder();
            columnMeta.append("ColumnMetadata");
            columnMeta.append(".named(\"" + metadata.getName() + "\")");
            columnMeta.append(".withIndex(" + metadata.getIndex() + ")");
            String type = String.valueOf(metadata.getJdbcType());
            if (typeConstants.containsKey(metadata.getJdbcType())) {
                type = "Types." + typeConstants.get(metadata.getJdbcType());
            }
            columnMeta.append(".ofType(" + type + ")");
            if (metadata.hasSize()) {
                columnMeta.append(".withSize(" + metadata.getSize() + ")");
            }
            if (metadata.getDigits() > 0) {
                columnMeta.append(".withDigits(" + metadata.getDigits() + ")");
            }
            if (!metadata.isNullable()) {
                columnMeta.append(".notNull()");
            }
            writer.line("addMetadata(", name, ", ", columnMeta.toString(), ");");
        }
        writer.end();

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    @Override
    public int compare(Property property1, Property property2) {
        Integer comparison = null;
        for (Property property : Arrays.asList(property1, property2)) {
            Map<Object, Object> data = property.getData();
            ColumnMetadata columnMetadata = (ColumnMetadata) data.get("COLUMN");
            int index = columnMetadata.getIndex();
            comparison = comparison == null ? index : comparison - index;
        }
        return comparison;
    }

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Related Classes of com.mysema.query.sql.ColumnMetadata

com.mysema.query.ColumnMetadataTest

com.mysema.query.sql.codegen.MetaDataSerializer

com.mysema.query.sql.codegen.OrdinalPositionComparator

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