Examples with SchemaRead org.neo4j.internal.kernel.api.SchemaRead used on opensource projects

Example 31 with SchemaRead

use of org.neo4j.internal.kernel.api.SchemaRead in project neo4j by neo4j.

the class SchemaReadWriteTestBase method shouldDropIndexBySchema.

@Test
void shouldDropIndexBySchema() throws Exception {
    IndexDescriptor index;
    try (KernelTransaction transaction = beginTransaction()) {
        index = transaction.schemaWrite().indexCreate(forLabel(label, prop1), "my index");
        transaction.commit();
    }
    try (KernelTransaction transaction = beginTransaction()) {
        transaction.schemaWrite().indexDrop(index.schema());
        transaction.commit();
    }
    try (KernelTransaction transaction = beginTransaction()) {
        SchemaRead schemaRead = transaction.schemaRead();
        assertFalse(schemaRead.index(SchemaDescriptor.forLabel(label, prop1)).hasNext());
    }
}

Example 32 with SchemaRead

use of org.neo4j.internal.kernel.api.SchemaRead in project neo4j by neo4j.

the class SchemaReadWriteTestBase method shouldDropConstraintByName.

@Test
void shouldDropConstraintByName() throws Exception {
    ConstraintDescriptor constraint;
    String constraintName = "my constraint";
    try (KernelTransaction transaction = beginTransaction()) {
        constraint = transaction.schemaWrite().uniquePropertyConstraintCreate(uniqueForSchema(forLabel(label, prop1)).withName(constraintName));
        transaction.commit();
    }
    try (KernelTransaction transaction = beginTransaction()) {
        transaction.schemaWrite().constraintDrop(constraintName);
        transaction.commit();
    }
    try (KernelTransaction transaction = beginTransaction()) {
        SchemaRead schemaRead = transaction.schemaRead();
        assertFalse(schemaRead.constraintExists(constraint));
    }
}

Example 33 with SchemaRead

use of org.neo4j.internal.kernel.api.SchemaRead in project neo4j by neo4j.

the class SchemaReadWriteTestBase method shouldSeeNodeKeyConstraintFromTransaction.

@Test
void shouldSeeNodeKeyConstraintFromTransaction() throws Exception {
    ConstraintDescriptor existing;
    try (KernelTransaction transaction = beginTransaction()) {
        existing = transaction.schemaWrite().nodeKeyConstraintCreate(uniqueForSchema(forLabel(label, prop1)).withName("existing constraint"));
        transaction.commit();
    }
    try (KernelTransaction transaction = beginTransaction()) {
        SchemaReadCore before = transaction.schemaRead().snapshot();
        ConstraintDescriptor newConstraint = transaction.schemaWrite().nodeKeyConstraintCreate(uniqueForSchema(forLabel(label, prop2)).withName("new constraint"));
        SchemaRead schemaRead = transaction.schemaRead();
        assertTrue(schemaRead.constraintExists(existing));
        assertTrue(schemaRead.constraintExists(newConstraint));
        assertThat(asList(schemaRead.constraintsGetForLabel(label))).contains(existing, newConstraint);
        assertThat(asList(schemaRead.snapshot().constraintsGetForLabel(label))).contains(existing, newConstraint);
        assertThat(asList(before.constraintsGetForLabel(label))).contains(existing, newConstraint);
    }
}

Example 34 with SchemaRead

use of org.neo4j.internal.kernel.api.SchemaRead in project neo4j by neo4j.

the class SchemaReadWriteTestBase method shouldDropNodeKeyConstraint.

@Test
void shouldDropNodeKeyConstraint() throws Exception {
    ConstraintDescriptor constraint;
    try (KernelTransaction transaction = beginTransaction()) {
        constraint = transaction.schemaWrite().nodeKeyConstraintCreate(uniqueForSchema(forLabel(label, prop1)));
        transaction.commit();
    }
    try (KernelTransaction transaction = beginTransaction()) {
        transaction.schemaWrite().constraintDrop(constraint);
        transaction.commit();
    }
    try (KernelTransaction transaction = beginTransaction()) {
        SchemaRead schemaRead = transaction.schemaRead();
        assertFalse(schemaRead.constraintExists(constraint));
        assertThat(asList(schemaRead.constraintsGetForLabel(label))).isEmpty();
        assertThat(asList(schemaRead.snapshot().constraintsGetForLabel(label))).isEmpty();
    }
}

Example 35 with SchemaRead

use of org.neo4j.internal.kernel.api.SchemaRead in project neo4j by neo4j.

the class SchemaReadWriteTestBase method shouldNotSeeDroppedRelationshipPropertyExistenceConstraintFromTransaction.

@Test
void shouldNotSeeDroppedRelationshipPropertyExistenceConstraintFromTransaction() throws Exception {
    ConstraintDescriptor existing;
    try (KernelTransaction transaction = beginTransaction()) {
        existing = transaction.schemaWrite().relationshipPropertyExistenceConstraintCreate(forRelType(type, prop1), "constraint name");
        transaction.commit();
    }
    try (KernelTransaction transaction = beginTransaction()) {
        SchemaReadCore before = transaction.schemaRead().snapshot();
        transaction.schemaWrite().constraintDrop(existing);
        SchemaRead schemaRead = transaction.schemaRead();
        assertFalse(schemaRead.constraintExists(existing));
        assertFalse(schemaRead.index(SchemaDescriptor.forLabel(type, prop2)).hasNext());
        assertThat(asList(schemaRead.constraintsGetForLabel(label))).isEmpty();
        assertThat(asList(schemaRead.snapshot().constraintsGetForLabel(label))).isEmpty();
        assertThat(asList(before.constraintsGetForLabel(label))).isEmpty();
    }
}